старший научный сотрудник, к.т.н.
Публикации
2021
Blinov, D. V.; Borzenko, V. I.; Bezdudny, A. V.; Kazakov, A. N.
Metal hydride hydrogen storage and purification technologies Conference
vol. 2039, no. 1, 2021, (cited By 0).
@conference{Blinov2021,
title = {Metal hydride hydrogen storage and purification technologies},
author = {D. V. Blinov and V. I. Borzenko and A. V. Bezdudny and A. N. Kazakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119679560&doi=10.1088%2f1742-6596%2f2039%2f1%2f012005&partnerID=40&md5=250e27dd35a9985271ec61e94d01d6b6},
doi = {10.1088/1742-6596/2039/1/012005},
year = {2021},
date = {2021-01-01},
journal = {Journal of Physics: Conference Series},
volume = {2039},
number = {1},
abstract = {The results of the development of metal hydride (MH) reactors for the storage and purification of hydrogen of various types are presented. Two methods of metal hydride purification of hydrogen are presented. The use of the MH method of flow-through purification of hydrogen has high hydrogen recovery rates at high volume contents of hydrogen in the mixture (≥10% vol.), while the method of periodic evacuation of accumulated impurities is most effective at low hydrogen contents in the mixture (<10% vol.). © 2021 Institute of Physics Publishing. All rights reserved.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The results of the development of metal hydride (MH) reactors for the storage and purification of hydrogen of various types are presented. Two methods of metal hydride purification of hydrogen are presented. The use of the MH method of flow-through purification of hydrogen has high hydrogen recovery rates at high volume contents of hydrogen in the mixture (≥10% vol.), while the method of periodic evacuation of accumulated impurities is most effective at low hydrogen contents in the mixture (<10% vol.). © 2021 Institute of Physics Publishing. All rights reserved.
Kazakov, A. N.; Blinov, D. V.; Bodikov, V. Y.; Mitrokhin, S. V.; Volodin, A. A.
Hydrogen storage and electrochemical properties of annealed low-Co AB5 type intermetallic compounds Journal Article
In: International Journal of Hydrogen Energy, vol. 46, no. 25, pp. 13622-13631, 2021, (cited By 5).
@article{Kazakov202113622,
title = {Hydrogen storage and electrochemical properties of annealed low-Co AB5 type intermetallic compounds},
author = {A. N. Kazakov and D. V. Blinov and V. Y. Bodikov and S. V. Mitrokhin and A. A. Volodin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098537589&doi=10.1016%2fj.ijhydene.2020.12.071&partnerID=40&md5=3578969d44202cbe9c097e6b4c9c4eb4},
doi = {10.1016/j.ijhydene.2020.12.071},
year = {2021},
date = {2021-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {46},
number = {25},
pages = {13622-13631},
abstract = {The structure, hydrogen storage and electrochemical properties of annealed low-Co AB5-type intermetallic compounds have been investigated. La-alloy, Nd-alloy and Cr-alloy are used to represent La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3, La0.6Ce0.2Nd0.2Ni4Co0.4Mn0.3Al0.3 and La0.6Ce0.2Nd0.2Ni3.8Co0.4Mn0.3Al0.3Cr0.2, respectively. The XRD results indicated that annealed samples are all single-phase alloys with CaCu5 type structure. The maximum of both hydrogen content and discharge capacity is obtained for La-alloy 1.23 wt%H2 and 321.1 mA h/g, respectively. All the investigated alloys are quiet stable with ΔH of hydrogen desorption about 36–38 kJ/mol H2. Cycle life of alloy electrode has been improved by partial substitution of La for Nd and Ni for Cr. The highest capacity retention of 92.2% after 100 charge/discharge cycles at 1C has been observed for Nd-alloy. The hydrogen diffusion coefficient measured by PITT is higher at the start of charging process and dramatically reduces by 2–3 order of magnitude with saturation of β-hydride. The highest value 6.9 × 10−13 cm2/s is observed for La alloy at 100% SOC. Partial substitution La for Nd and Cr for Ni in low-Co AB5 metal hydride alloys slightly reduces maximum discharge capacity, HRD performance and hydrogen diffusion kinetics. Low-Co alloys show good overall electrochemical properties compared to high-Co alloys and might be perspective materials for various electrochemical applications. © 2020 Hydrogen Energy Publications LLC},
note = {cited By 5},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The structure, hydrogen storage and electrochemical properties of annealed low-Co AB5-type intermetallic compounds have been investigated. La-alloy, Nd-alloy and Cr-alloy are used to represent La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3, La0.6Ce0.2Nd0.2Ni4Co0.4Mn0.3Al0.3 and La0.6Ce0.2Nd0.2Ni3.8Co0.4Mn0.3Al0.3Cr0.2, respectively. The XRD results indicated that annealed samples are all single-phase alloys with CaCu5 type structure. The maximum of both hydrogen content and discharge capacity is obtained for La-alloy 1.23 wt%H2 and 321.1 mA h/g, respectively. All the investigated alloys are quiet stable with ΔH of hydrogen desorption about 36–38 kJ/mol H2. Cycle life of alloy electrode has been improved by partial substitution of La for Nd and Ni for Cr. The highest capacity retention of 92.2% after 100 charge/discharge cycles at 1C has been observed for Nd-alloy. The hydrogen diffusion coefficient measured by PITT is higher at the start of charging process and dramatically reduces by 2–3 order of magnitude with saturation of β-hydride. The highest value 6.9 × 10−13 cm2/s is observed for La alloy at 100% SOC. Partial substitution La for Nd and Cr for Ni in low-Co AB5 metal hydride alloys slightly reduces maximum discharge capacity, HRD performance and hydrogen diffusion kinetics. Low-Co alloys show good overall electrochemical properties compared to high-Co alloys and might be perspective materials for various electrochemical applications. © 2020 Hydrogen Energy Publications LLC
Dunikov, D. O.; Borzenko, V. I.; Blinov, D. V.; Kazakov, A. N.; Romanov, I. A.; Leontiev, A. I.
Heat and mass transfer in a metal hydride reactor: Combining experiments and mathematical modelling Conference
vol. 2057, no. 1, 2021, (cited By 0).
@conference{Dunikov2021,
title = {Heat and mass transfer in a metal hydride reactor: Combining experiments and mathematical modelling},
author = {D. O. Dunikov and V. I. Borzenko and D. V. Blinov and A. N. Kazakov and I. A. Romanov and A. I. Leontiev},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119610101&doi=10.1088%2f1742-6596%2f2057%2f1%2f012122&partnerID=40&md5=70d88d8f2d9960a523bcc76b05dc7251},
doi = {10.1088/1742-6596/2057/1/012122},
year = {2021},
date = {2021-01-01},
journal = {Journal of Physics: Conference Series},
volume = {2057},
number = {1},
abstract = {Heat transfer in porous metal hydride (MH) beds determines efficiency of MH devices. We present a COMSOL Multiphysics numerical model and experimental investigation of heat and mass transfer in a MH reactor filled with 4.69 kg of AB5 type alloy (Mm0.8La0.2Ni4.1Fe0.8Al0.1). To achieve an agreement between the model and experiments it is necessary to include a flow control device (inlet valve or flow regulator) into the model. We propose a simplified and easy-to-calculate boundary condition based on a porous domain with variable permeability at reactor inlet. The permeability of the domain is connected with hydrogen mass flow by a PID controller. Thus, boundary conditions for the inlet pressure and mass flow are coupled and heat transfer inside the reactor could be calculated without additional assumptions applied to heat and mass transfer in the MH bed. © 2021 Institute of Physics Publishing. All rights reserved.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Heat transfer in porous metal hydride (MH) beds determines efficiency of MH devices. We present a COMSOL Multiphysics numerical model and experimental investigation of heat and mass transfer in a MH reactor filled with 4.69 kg of AB5 type alloy (Mm0.8La0.2Ni4.1Fe0.8Al0.1). To achieve an agreement between the model and experiments it is necessary to include a flow control device (inlet valve or flow regulator) into the model. We propose a simplified and easy-to-calculate boundary condition based on a porous domain with variable permeability at reactor inlet. The permeability of the domain is connected with hydrogen mass flow by a PID controller. Thus, boundary conditions for the inlet pressure and mass flow are coupled and heat transfer inside the reactor could be calculated without additional assumptions applied to heat and mass transfer in the MH bed. © 2021 Institute of Physics Publishing. All rights reserved.
2020
Blinov, D. V.; Borzenko, V. I.; Bezdudny, A. V.; Dunikov, D. O.; Kazakov, A. N.; Romanov, I. A.; Kuleshov, V. N.; Porembsky, V. I.
vol. 1683, no. 5, 2020, (cited By 0).
@conference{Blinov2020b,
title = {Metal-hydride reactor for low rate fuel supply with pressure driven adsorption and cooled by natural convection},
author = {D. V. Blinov and V. I. Borzenko and A. V. Bezdudny and D. O. Dunikov and A. N. Kazakov and I. A. Romanov and V. N. Kuleshov and V. I. Porembsky},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099562634&doi=10.1088%2f1742-6596%2f1683%2f5%2f052009&partnerID=40&md5=004799151502f035a94709a7a5cea4a2},
doi = {10.1088/1742-6596/1683/5/052009},
year = {2020},
date = {2020-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1683},
number = {5},
abstract = {A metal hydride reactor for hydrogen accumulation RHA-1 containing 18 kg of La0.85Ce0.15Ni5alloy is created. RHA-1 and has maximum hydrogen capacity of 2.7 st.m3and nominal capacity of 2 st.m3. Experiments have shown that the reactor could be operated using the pressure difference between an electrolyzer (1 MPa) and a fuel cell (>0.2 MPa) with passive cooling/heating of air in indoor conditions. The equilibrium charge rate is 1 st.L/min, the equilibrium discharge rate is 1.3 st.L. The RHA-1 could be used for long term energy storage and in combination with the 100 W PEM fuel cell is comparable with 12V 210Ah electrochemical batteries. The metal hydride/fuel cell system is lighter and more durable than lead acid batteries and cheaper that Li-ion batteries. © 2020 Institute of Physics Publishing. All rights reserved.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
A metal hydride reactor for hydrogen accumulation RHA-1 containing 18 kg of La0.85Ce0.15Ni5alloy is created. RHA-1 and has maximum hydrogen capacity of 2.7 st.m3and nominal capacity of 2 st.m3. Experiments have shown that the reactor could be operated using the pressure difference between an electrolyzer (1 MPa) and a fuel cell (>0.2 MPa) with passive cooling/heating of air in indoor conditions. The equilibrium charge rate is 1 st.L/min, the equilibrium discharge rate is 1.3 st.L. The RHA-1 could be used for long term energy storage and in combination with the 100 W PEM fuel cell is comparable with 12V 210Ah electrochemical batteries. The metal hydride/fuel cell system is lighter and more durable than lead acid batteries and cheaper that Li-ion batteries. © 2020 Institute of Physics Publishing. All rights reserved.
ru D.O. Dunikov, Ddo@mail.; Borzenko, V. I.; Blinov, D. V.
Heat and mass transfer crisis in a metal hydride reactor Conference
vol. 1675, no. 1, 2020, (cited By 0).
@conference{Dunikov2020b,
title = {Heat and mass transfer crisis in a metal hydride reactor},
author = {Ddo@mail. ru D.O. Dunikov and V. I. Borzenko and D. V. Blinov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098167691&doi=10.1088%2f1742-6596%2f1675%2f1%2f012115&partnerID=40&md5=c7bdc27947a430b152e5df59e2e3ff77},
doi = {10.1088/1742-6596/1675/1/012115},
year = {2020},
date = {2020-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1675},
number = {1},
abstract = {We present a simple lumped mathematical model of hydrogen absorption in a metal hydride reactor with a constant flow rate (sub-critical regime) and use it to predict a heat and mass transfer crisis in the reactor. To verify the model we compare calculations with the experiment on hydrogen absorption in the reactor filled with 5 kg of LaNi4.8Mn0.3Fe0.1 alloy with a hydrogen flow rate of 60 stL/min. The analytical model predicts the heat and mass transfer crisis with good precision. © Published under licence by IOP Publishing Ltd.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
We present a simple lumped mathematical model of hydrogen absorption in a metal hydride reactor with a constant flow rate (sub-critical regime) and use it to predict a heat and mass transfer crisis in the reactor. To verify the model we compare calculations with the experiment on hydrogen absorption in the reactor filled with 5 kg of LaNi4.8Mn0.3Fe0.1 alloy with a hydrogen flow rate of 60 stL/min. The analytical model predicts the heat and mass transfer crisis with good precision. © Published under licence by IOP Publishing Ltd.
Dunikov, D. O.; Borzenko, V. I.; Blinov, D. V.; Volodin, A. A.; Kazakov, A. N.; Romanov, I. A.; Bodikov, V. Y.
Investigation of La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3for possible use as a metal hydride fuel cell anode Conference
vol. 1675, no. 1, 2020, (cited By 0).
@conference{Dunikov2020c,
title = {Investigation of La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3for possible use as a metal hydride fuel cell anode},
author = {D. O. Dunikov and V. I. Borzenko and D. V. Blinov and A. A. Volodin and A. N. Kazakov and I. A. Romanov and V. Y. Bodikov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098115658&doi=10.1088%2f1742-6596%2f1675%2f1%2f012110&partnerID=40&md5=01cf9e500b6f730bffa7bc20f1a6378b},
doi = {10.1088/1742-6596/1675/1/012110},
year = {2020},
date = {2020-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1675},
number = {1},
abstract = {The low-Co AB5-type La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3 alloy was investigated as a potential material for a metal hydride fuel cell anode. The intermetallic compound was prepared by arc melting in argon atmosphere followed by annealing at 1223 K and hardening in cold water. According to XRD analysis, the alloy has the hexagonal CaCu5 type structure without inclusions of secondary impurities. Electrodes were prepared by cold pressing of alloy powder (20%) with carbonyl nickel (80%). Activation at 100 mA/g was almost done in 3 charge/discharge cycles. Full capacity was 340 mAh/g at current density 300 mA/g. The metal hydride electrodes demonstrate stable high rate dischargeability dropping to 317 mAh/g (-7%) at 1000 mA/g. The electrodes have shown high values of the hydrogen diffusion coefficient, with a maximum of 9 10-11 cm2/s at 10% SOC. © Published under licence by IOP Publishing Ltd.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The low-Co AB5-type La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3 alloy was investigated as a potential material for a metal hydride fuel cell anode. The intermetallic compound was prepared by arc melting in argon atmosphere followed by annealing at 1223 K and hardening in cold water. According to XRD analysis, the alloy has the hexagonal CaCu5 type structure without inclusions of secondary impurities. Electrodes were prepared by cold pressing of alloy powder (20%) with carbonyl nickel (80%). Activation at 100 mA/g was almost done in 3 charge/discharge cycles. Full capacity was 340 mAh/g at current density 300 mA/g. The metal hydride electrodes demonstrate stable high rate dischargeability dropping to 317 mAh/g (-7%) at 1000 mA/g. The electrodes have shown high values of the hydrogen diffusion coefficient, with a maximum of 9 10-11 cm2/s at 10% SOC. © Published under licence by IOP Publishing Ltd.
Kuleshov, V. N.; Kurochkin, S. V.; Kuleshov, N. V.; Blinov, D. V.; Grigorieva, O. Y.
Electrode-diaphragm assembly for alkaline water electrolysis Conference
vol. 1683, no. 5, 2020, (cited By 0).
@conference{Kuleshov2020,
title = {Electrode-diaphragm assembly for alkaline water electrolysis},
author = {V. N. Kuleshov and S. V. Kurochkin and N. V. Kuleshov and D. V. Blinov and O. Y. Grigorieva},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099604836&doi=10.1088%2f1742-6596%2f1683%2f5%2f052011&partnerID=40&md5=3a34924f6bdcbe4821087d87f74abc94},
doi = {10.1088/1742-6596/1683/5/052011},
year = {2020},
date = {2020-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1683},
number = {5},
abstract = {In connection with the development of hydrogen energy, special attention is currently being paid to the creation of highly efficient water electrolyzers, including electrolyzers with alkaline electrolyte. The main disadvantage of hydrogen production by water electrolysis is its high energy consumption. The present article shows that energy consumption can be reduced by changing of the electrodes and diaphragm layout. The phase inversion method used for the manufacture of polymer-based porous diaphragms for alkaline water electrolysers made it possible to create an electrode-diaphragm assembly, where elements of electrode-diaphragm assembly represent a single element. The comparative research of electrolysis cells with different electrode-diaphragm assemblies and cells of the traditional "zero gap" was carried out. © 2020 Institute of Physics Publishing. All rights reserved.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
In connection with the development of hydrogen energy, special attention is currently being paid to the creation of highly efficient water electrolyzers, including electrolyzers with alkaline electrolyte. The main disadvantage of hydrogen production by water electrolysis is its high energy consumption. The present article shows that energy consumption can be reduced by changing of the electrodes and diaphragm layout. The phase inversion method used for the manufacture of polymer-based porous diaphragms for alkaline water electrolysers made it possible to create an electrode-diaphragm assembly, where elements of electrode-diaphragm assembly represent a single element. The comparative research of electrolysis cells with different electrode-diaphragm assemblies and cells of the traditional "zero gap" was carried out. © 2020 Institute of Physics Publishing. All rights reserved.
Kazakov, A. N.; Bodikov, V. Y.; Blinov, D. V.; Volodin, A. A.
vol. 1675, no. 1, 2020, (cited By 0).
@conference{Kazakov2020,
title = {Hydrogen diffusion in AB5 type metal hydride anodes by potentiostatic intermittent titration technique},
author = {A. N. Kazakov and V. Y. Bodikov and D. V. Blinov and A. A. Volodin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098109540&doi=10.1088%2f1742-6596%2f1675%2f1%2f012090&partnerID=40&md5=9033ffd03e06bf4e666c92b3ae29d1e0},
doi = {10.1088/1742-6596/1675/1/012090},
year = {2020},
date = {2020-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1675},
number = {1},
abstract = {Metal hydrides are widely used for hydrogen-related energy storage applications due to their high volumetric capacity, safety, and selectivity to absorb hydrogen. One of the main applications of metal hydrides is their use as electrode material in Ni-MH batteries. Metal hydride electrodes provide high energy density, high rate capability, tolerance to overcharge and over-discharge, and no electrolyte consumption during the charge/discharge cycle. One of the key factors of metal hydride electrode performance is a hydrogen diffusion from the electrolyte to the bulk of metal hydride material. In the present study, effective hydrogen diffusion coefficients in AB5 type metal hydride electrodes during the charging process are investigated employing potentiostatic intermitent titration technique. © Published under licence by IOP Publishing Ltd.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Metal hydrides are widely used for hydrogen-related energy storage applications due to their high volumetric capacity, safety, and selectivity to absorb hydrogen. One of the main applications of metal hydrides is their use as electrode material in Ni-MH batteries. Metal hydride electrodes provide high energy density, high rate capability, tolerance to overcharge and over-discharge, and no electrolyte consumption during the charge/discharge cycle. One of the key factors of metal hydride electrode performance is a hydrogen diffusion from the electrolyte to the bulk of metal hydride material. In the present study, effective hydrogen diffusion coefficients in AB5 type metal hydride electrodes during the charging process are investigated employing potentiostatic intermitent titration technique. © Published under licence by IOP Publishing Ltd.
Blinov, D. V.; Borzenko, V. I.; Bezdudny, A. V.; Dunikov, D. O.; Kazakov, A. N.; Romanov, I. A.; Kuleshov, V. N.; Porembsky, V. I.
vol. 1683, no. 5, 2020, (cited By 0).
@conference{Blinov2020,
title = {Metal-hydride reactor for low rate fuel supply with pressure driven adsorption and cooled by natural convection},
author = {D. V. Blinov and V. I. Borzenko and A. V. Bezdudny and D. O. Dunikov and A. N. Kazakov and I. A. Romanov and V. N. Kuleshov and V. I. Porembsky},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099562634&doi=10.1088%2f1742-6596%2f1683%2f5%2f052009&partnerID=40&md5=004799151502f035a94709a7a5cea4a2},
doi = {10.1088/1742-6596/1683/5/052009},
year = {2020},
date = {2020-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1683},
number = {5},
abstract = {A metal hydride reactor for hydrogen accumulation RHA-1 containing 18 kg of La0.85Ce0.15Ni5alloy is created. RHA-1 and has maximum hydrogen capacity of 2.7 st.m3and nominal capacity of 2 st.m3. Experiments have shown that the reactor could be operated using the pressure difference between an electrolyzer (1 MPa) and a fuel cell (>0.2 MPa) with passive cooling/heating of air in indoor conditions. The equilibrium charge rate is 1 st.L/min, the equilibrium discharge rate is 1.3 st.L. The RHA-1 could be used for long term energy storage and in combination with the 100 W PEM fuel cell is comparable with 12V 210Ah electrochemical batteries. The metal hydride/fuel cell system is lighter and more durable than lead acid batteries and cheaper that Li-ion batteries. © 2020 Institute of Physics Publishing. All rights reserved.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
A metal hydride reactor for hydrogen accumulation RHA-1 containing 18 kg of La0.85Ce0.15Ni5alloy is created. RHA-1 and has maximum hydrogen capacity of 2.7 st.m3and nominal capacity of 2 st.m3. Experiments have shown that the reactor could be operated using the pressure difference between an electrolyzer (1 MPa) and a fuel cell (>0.2 MPa) with passive cooling/heating of air in indoor conditions. The equilibrium charge rate is 1 st.L/min, the equilibrium discharge rate is 1.3 st.L. The RHA-1 could be used for long term energy storage and in combination with the 100 W PEM fuel cell is comparable with 12V 210Ah electrochemical batteries. The metal hydride/fuel cell system is lighter and more durable than lead acid batteries and cheaper that Li-ion batteries. © 2020 Institute of Physics Publishing. All rights reserved.
Dunikov, D. O.; Borzenko, V. I.; Blinov, D. V.; Volodin, A. A.; Kazakov, A. N.; Romanov, I. A.; Bodikov, V. Y.
Investigation of La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3for possible use as a metal hydride fuel cell anode Conference
vol. 1675, no. 1, 2020, (cited By 0).
@conference{Dunikov2020,
title = {Investigation of La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3for possible use as a metal hydride fuel cell anode},
author = {D. O. Dunikov and V. I. Borzenko and D. V. Blinov and A. A. Volodin and A. N. Kazakov and I. A. Romanov and V. Y. Bodikov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098115658&doi=10.1088%2f1742-6596%2f1675%2f1%2f012110&partnerID=40&md5=01cf9e500b6f730bffa7bc20f1a6378b},
doi = {10.1088/1742-6596/1675/1/012110},
year = {2020},
date = {2020-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1675},
number = {1},
abstract = {The low-Co AB5-type La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3 alloy was investigated as a potential material for a metal hydride fuel cell anode. The intermetallic compound was prepared by arc melting in argon atmosphere followed by annealing at 1223 K and hardening in cold water. According to XRD analysis, the alloy has the hexagonal CaCu5 type structure without inclusions of secondary impurities. Electrodes were prepared by cold pressing of alloy powder (20%) with carbonyl nickel (80%). Activation at 100 mA/g was almost done in 3 charge/discharge cycles. Full capacity was 340 mAh/g at current density 300 mA/g. The metal hydride electrodes demonstrate stable high rate dischargeability dropping to 317 mAh/g (-7%) at 1000 mA/g. The electrodes have shown high values of the hydrogen diffusion coefficient, with a maximum of 9 10-11 cm2/s at 10% SOC. © Published under licence by IOP Publishing Ltd.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The low-Co AB5-type La0.8Ce0.2Ni4Co0.4Mn0.3Al0.3 alloy was investigated as a potential material for a metal hydride fuel cell anode. The intermetallic compound was prepared by arc melting in argon atmosphere followed by annealing at 1223 K and hardening in cold water. According to XRD analysis, the alloy has the hexagonal CaCu5 type structure without inclusions of secondary impurities. Electrodes were prepared by cold pressing of alloy powder (20%) with carbonyl nickel (80%). Activation at 100 mA/g was almost done in 3 charge/discharge cycles. Full capacity was 340 mAh/g at current density 300 mA/g. The metal hydride electrodes demonstrate stable high rate dischargeability dropping to 317 mAh/g (-7%) at 1000 mA/g. The electrodes have shown high values of the hydrogen diffusion coefficient, with a maximum of 9 10-11 cm2/s at 10% SOC. © Published under licence by IOP Publishing Ltd.
Dunikov, D.; Blinov, D.
Extraction of hydrogen from a lean mixture with methane by metal hydride Journal Article
In: International Journal of Hydrogen Energy, vol. 45, no. 16, pp. 9914-9926, 2020, (cited By 10).
@article{Dunikov20209914,
title = {Extraction of hydrogen from a lean mixture with methane by metal hydride},
author = {D. Dunikov and D. Blinov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079518976&doi=10.1016%2fj.ijhydene.2020.01.201&partnerID=40&md5=70b701e44620190580dd10c80a60c21d},
doi = {10.1016/j.ijhydene.2020.01.201},
year = {2020},
date = {2020-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {45},
number = {16},
pages = {9914-9926},
abstract = {Hydrogen/methane mixtures draw attention due to the idea of the injection of hydrogen into natural gas networks and biological production of biohythane by one- and two-step anaerobic fermentation/digestion methods. It is hard to extract hydrogen from dilute mixtures with methane by traditional separation processes, since hydrogen is the minor component with low partial pressure. Metal hydrides selectively absorb hydrogen and offer an opportunity to overcome the limitations of traditional separation methods. In the present paper, we present experimental results on the separation of a dilute mixture of hydrogen (10%) with methane in a flow-through metal hydride reactor with inlet mixture pressure of 0.95 MPa by the LaNi4.8Mn0.3Fe0.1 intermetallic compound. Hydrogen was separated in one step with roundtrip (absorption/desorption) recovery of 74%. An exergetic analysis of the metal hydride separation of a binary mixture containing hydrogen was implemented and equations for hydrogen recovery and exergy efficiency of separation are obtained. Thermodynamic analysis shows that the exergy efficiency of the metal hydride purification has a clear maximum at hydrogen concentrations around 5–20%. The advantage of metal hydride purification is the absorption of the minor fraction from the feed, thus it is preferable for dilute mixtures and could be feasible for practical applications. With the use of low potential or waste heat to drive the reaction, it is possible to increase the efficiency of hydrogen purification by metal hydrides. The maximum exergy efficiency is 61% for 0.8 MPa outlet pressure, taking into account the quality of involved heat flows. © 2020 Hydrogen Energy Publications LLC},
note = {cited By 10},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hydrogen/methane mixtures draw attention due to the idea of the injection of hydrogen into natural gas networks and biological production of biohythane by one- and two-step anaerobic fermentation/digestion methods. It is hard to extract hydrogen from dilute mixtures with methane by traditional separation processes, since hydrogen is the minor component with low partial pressure. Metal hydrides selectively absorb hydrogen and offer an opportunity to overcome the limitations of traditional separation methods. In the present paper, we present experimental results on the separation of a dilute mixture of hydrogen (10%) with methane in a flow-through metal hydride reactor with inlet mixture pressure of 0.95 MPa by the LaNi4.8Mn0.3Fe0.1 intermetallic compound. Hydrogen was separated in one step with roundtrip (absorption/desorption) recovery of 74%. An exergetic analysis of the metal hydride separation of a binary mixture containing hydrogen was implemented and equations for hydrogen recovery and exergy efficiency of separation are obtained. Thermodynamic analysis shows that the exergy efficiency of the metal hydride purification has a clear maximum at hydrogen concentrations around 5–20%. The advantage of metal hydride purification is the absorption of the minor fraction from the feed, thus it is preferable for dilute mixtures and could be feasible for practical applications. With the use of low potential or waste heat to drive the reaction, it is possible to increase the efficiency of hydrogen purification by metal hydrides. The maximum exergy efficiency is 61% for 0.8 MPa outlet pressure, taking into account the quality of involved heat flows. © 2020 Hydrogen Energy Publications LLC
2019
Dunikov, D. O.; Blinov, D. V.
On efficiency of metal hydride extraction of hydrogen from a mixture with methane Conference
vol. 1359, no. 1, 2019, (cited By 0).
@conference{Dunikov2019b,
title = {On efficiency of metal hydride extraction of hydrogen from a mixture with methane},
author = {D. O. Dunikov and D. V. Blinov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076498401&doi=10.1088%2f1742-6596%2f1359%2f1%2f012132&partnerID=40&md5=c2adee54c85a77146485cef41a65bae4},
doi = {10.1088/1742-6596/1359/1/012132},
year = {2019},
date = {2019-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1359},
number = {1},
abstract = {Extraction of hydrogen from dilute mixtures with natural gas differs from traditional separation processes, since hydrogen is the minor component with low partial pressure. Metal hydrides absorb hydrogen selectively and can be used for purification. Exergy analysis shows that the metal hydride separation of binary mixture of a gas with hydrogen has a maximum at hydrogen content of 5-15%, and the main factors affecting efficiency are the need to spend heat to compensate the reaction enthalpy and pressure losses of methane during filtration through the metal hydride bed. We have experimentally demonstrated successful separation of the hydrogen (10%)-methane (90%) mixture at inlet pressure of 9.5 bar by the LaNi4.8Mn0.3Fe0.1 intermetallic compound in one step with roundtrip (absorption/desorption) hydrogen recovery of 74% and absorption hydrogen recovery of 76%, which is close to the value of 77% calculated based on the thermodynamic analysis. © Published under licence by IOP Publishing Ltd.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Extraction of hydrogen from dilute mixtures with natural gas differs from traditional separation processes, since hydrogen is the minor component with low partial pressure. Metal hydrides absorb hydrogen selectively and can be used for purification. Exergy analysis shows that the metal hydride separation of binary mixture of a gas with hydrogen has a maximum at hydrogen content of 5-15%, and the main factors affecting efficiency are the need to spend heat to compensate the reaction enthalpy and pressure losses of methane during filtration through the metal hydride bed. We have experimentally demonstrated successful separation of the hydrogen (10%)-methane (90%) mixture at inlet pressure of 9.5 bar by the LaNi4.8Mn0.3Fe0.1 intermetallic compound in one step with roundtrip (absorption/desorption) hydrogen recovery of 74% and absorption hydrogen recovery of 76%, which is close to the value of 77% calculated based on the thermodynamic analysis. © Published under licence by IOP Publishing Ltd.
Dunikov, D. O.; Blinov, D. V.
On efficiency of metal hydride extraction of hydrogen from a mixture with methane Conference
vol. 1359, no. 1, 2019, (cited By 0).
@conference{Dunikov2019,
title = {On efficiency of metal hydride extraction of hydrogen from a mixture with methane},
author = {D. O. Dunikov and D. V. Blinov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076498401&doi=10.1088%2f1742-6596%2f1359%2f1%2f012132&partnerID=40&md5=c2adee54c85a77146485cef41a65bae4},
doi = {10.1088/1742-6596/1359/1/012132},
year = {2019},
date = {2019-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1359},
number = {1},
abstract = {Extraction of hydrogen from dilute mixtures with natural gas differs from traditional separation processes, since hydrogen is the minor component with low partial pressure. Metal hydrides absorb hydrogen selectively and can be used for purification. Exergy analysis shows that the metal hydride separation of binary mixture of a gas with hydrogen has a maximum at hydrogen content of 5-15%, and the main factors affecting efficiency are the need to spend heat to compensate the reaction enthalpy and pressure losses of methane during filtration through the metal hydride bed. We have experimentally demonstrated successful separation of the hydrogen (10%)-methane (90%) mixture at inlet pressure of 9.5 bar by the LaNi4.8Mn0.3Fe0.1 intermetallic compound in one step with roundtrip (absorption/desorption) hydrogen recovery of 74% and absorption hydrogen recovery of 76%, which is close to the value of 77% calculated based on the thermodynamic analysis. © Published under licence by IOP Publishing Ltd.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Extraction of hydrogen from dilute mixtures with natural gas differs from traditional separation processes, since hydrogen is the minor component with low partial pressure. Metal hydrides absorb hydrogen selectively and can be used for purification. Exergy analysis shows that the metal hydride separation of binary mixture of a gas with hydrogen has a maximum at hydrogen content of 5-15%, and the main factors affecting efficiency are the need to spend heat to compensate the reaction enthalpy and pressure losses of methane during filtration through the metal hydride bed. We have experimentally demonstrated successful separation of the hydrogen (10%)-methane (90%) mixture at inlet pressure of 9.5 bar by the LaNi4.8Mn0.3Fe0.1 intermetallic compound in one step with roundtrip (absorption/desorption) hydrogen recovery of 74% and absorption hydrogen recovery of 76%, which is close to the value of 77% calculated based on the thermodynamic analysis. © Published under licence by IOP Publishing Ltd.
Dunikov, D. O.; Blinov, D. V.
Pressure artifacts at isothermal operation of a metal hydride tank Journal Article
In: International Journal of Hydrogen Energy, vol. 44, no. 14, pp. 7422-7427, 2019, (cited By 5).
@article{Dunikov20197422,
title = {Pressure artifacts at isothermal operation of a metal hydride tank},
author = {D. O. Dunikov and D. V. Blinov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85061728702&doi=10.1016%2fj.ijhydene.2019.01.278&partnerID=40&md5=70934f18995ad0042113681c8a9948cd},
doi = {10.1016/j.ijhydene.2019.01.278},
year = {2019},
date = {2019-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {44},
number = {14},
pages = {7422-7427},
abstract = {The paper presents the results of experimental investigations on hydrogen absorption and desorption in the metal hydride reactor RS-1 containing 81 kg of La 0.5 Nd 0.5 Al 0.1 Fe 0.4 Co 0.2 Ni 4.3 intermetallic compound at 60 °C isothermal conditions. During the reactor-scale measurements of pressure-composition isotherms we observe pressure artifacts; pressures for absorption are higher and for desorption are lower than equilibrium pressures obtained after cooling down and reheating of the reactor. This thermal relaxation procedure removes the pressure artifacts. The observed effect is similar to the large aliquot effect, and mostly affects the desorption isotherm. The highest measured pressure difference is 0.7 bar (11%). © 2019 Hydrogen Energy Publications LLC},
note = {cited By 5},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The paper presents the results of experimental investigations on hydrogen absorption and desorption in the metal hydride reactor RS-1 containing 81 kg of La 0.5 Nd 0.5 Al 0.1 Fe 0.4 Co 0.2 Ni 4.3 intermetallic compound at 60 °C isothermal conditions. During the reactor-scale measurements of pressure-composition isotherms we observe pressure artifacts; pressures for absorption are higher and for desorption are lower than equilibrium pressures obtained after cooling down and reheating of the reactor. This thermal relaxation procedure removes the pressure artifacts. The observed effect is similar to the large aliquot effect, and mostly affects the desorption isotherm. The highest measured pressure difference is 0.7 bar (11%). © 2019 Hydrogen Energy Publications LLC
Khayrullina, A. G.; Blinov, D.; Borzenko, V.
Novel kW scale hydrogen energy storage system utilizing fuel cell exhaust air for hydrogen desorption process from metal hydride reactor Journal Article
In: Energy, vol. 183, pp. 1244-1252, 2019, (cited By 14).
@article{Khayrullina20191244,
title = {Novel kW scale hydrogen energy storage system utilizing fuel cell exhaust air for hydrogen desorption process from metal hydride reactor},
author = {A. G. Khayrullina and D. Blinov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068554494&doi=10.1016%2fj.energy.2019.07.021&partnerID=40&md5=a64feac4bcc7dc403e69c29fb52636ce},
doi = {10.1016/j.energy.2019.07.021},
year = {2019},
date = {2019-01-01},
journal = {Energy},
volume = {183},
pages = {1244-1252},
abstract = {In the narrative of changing energy production environment, renewable sources of energy provide a fundamental basis for the growth of energy storage technologies. In particular, many settlements in Russia and other countries are located outside the centralized grids. With the goal of replacing diesel engines, a pilot project with solar panels produced 30 000 kWh. However, a support of energy storage systems is needed to ensure higher replacement percentage. The present paper introduces the development of a novel kW-scale power production unit that utilizes metal-hydride (MH) energy storage and 1 kW PEM fuel cell (FC). In the effort to enable the technology for autonomous applications, the novel concept of using FC exhaust air for hydrogen desorption process replacing an external heating agent was successfully proved. In the first two experiments, the limitations of the initial stage of the MH reactor were formulated. Warming up speed of the MH reactor was not sufficient to support the necessary hydrogen pressure level output. Third and fourth experiments provide possible solutions to this limitation: (i) higher load on the FC enable satisfactory warm-up speed of the MH reactor, (ii) higher initial pressure of MH reactor charge mitigates an initial pressure drop during the FC startup procedures. © 2019 Elsevier Ltd},
note = {cited By 14},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In the narrative of changing energy production environment, renewable sources of energy provide a fundamental basis for the growth of energy storage technologies. In particular, many settlements in Russia and other countries are located outside the centralized grids. With the goal of replacing diesel engines, a pilot project with solar panels produced 30 000 kWh. However, a support of energy storage systems is needed to ensure higher replacement percentage. The present paper introduces the development of a novel kW-scale power production unit that utilizes metal-hydride (MH) energy storage and 1 kW PEM fuel cell (FC). In the effort to enable the technology for autonomous applications, the novel concept of using FC exhaust air for hydrogen desorption process replacing an external heating agent was successfully proved. In the first two experiments, the limitations of the initial stage of the MH reactor were formulated. Warming up speed of the MH reactor was not sufficient to support the necessary hydrogen pressure level output. Third and fourth experiments provide possible solutions to this limitation: (i) higher load on the FC enable satisfactory warm-up speed of the MH reactor, (ii) higher initial pressure of MH reactor charge mitigates an initial pressure drop during the FC startup procedures. © 2019 Elsevier Ltd
Khayrullina, A.; Blinov, D.; Borzenko, V.
Air heated metal hydride energy storage system design and experiments for microgrid applications Journal Article
In: International Journal of Hydrogen Energy, pp. 19168-19176, 2019, (cited By 8).
@article{Khayrullina201919168,
title = {Air heated metal hydride energy storage system design and experiments for microgrid applications},
author = {A. Khayrullina and D. Blinov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049092898&doi=10.1016%2fj.ijhydene.2018.05.145&partnerID=40&md5=36a54cfc658c4e3084262482a35b6c93},
doi = {10.1016/j.ijhydene.2018.05.145},
year = {2019},
date = {2019-01-01},
journal = {International Journal of Hydrogen Energy},
pages = {19168-19176},
abstract = {Emerging technologies of the 21st Century introduced bi-directional flows between a big number of uncontrollable and unpredictable generators together with a need for energy storage (ES) capable of solving instability issues. With the aim of developing new control methodologies, Skoltech developed a Smart Grid laboratory that includes a variety of energy generators, and storage systems. The capabilities of the grid were expanded with a metal hydride (MH) ES and 1 kW fuel cell. MH ES performs at the near ambient temperatures and relatively low pressure, it has adjustable properties, satisfactory gravimetric H2 density, and a simple thermal management. However, existing technologies require an external heat source, which cannot serve the purpose of autonomous microgrid applications. The aim of this research was to develop and test an air heated metal hydride energy storage system that utilizes the internal waste heat of the system. Based on low power MH ES system experiments [1] and waste heat investigations [2], an air heated system with 1 m3 H2 MH reactor was developed and tested. The experiments were performed in the system that also includes 1 kW fuel cell and an electrolyzer. Obtained results show higher efficiency rate of the system due to waste heat utilization from the air-cooled polymer electrolyte membrane (PEM) FC, ensure mobility for autonomous applications, and open the opportunity for further research in the field of power system control. © 2018 Hydrogen Energy Publications LLC},
note = {cited By 8},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Emerging technologies of the 21st Century introduced bi-directional flows between a big number of uncontrollable and unpredictable generators together with a need for energy storage (ES) capable of solving instability issues. With the aim of developing new control methodologies, Skoltech developed a Smart Grid laboratory that includes a variety of energy generators, and storage systems. The capabilities of the grid were expanded with a metal hydride (MH) ES and 1 kW fuel cell. MH ES performs at the near ambient temperatures and relatively low pressure, it has adjustable properties, satisfactory gravimetric H2 density, and a simple thermal management. However, existing technologies require an external heat source, which cannot serve the purpose of autonomous microgrid applications. The aim of this research was to develop and test an air heated metal hydride energy storage system that utilizes the internal waste heat of the system. Based on low power MH ES system experiments [1] and waste heat investigations [2], an air heated system with 1 m3 H2 MH reactor was developed and tested. The experiments were performed in the system that also includes 1 kW fuel cell and an electrolyzer. Obtained results show higher efficiency rate of the system due to waste heat utilization from the air-cooled polymer electrolyte membrane (PEM) FC, ensure mobility for autonomous applications, and open the opportunity for further research in the field of power system control. © 2018 Hydrogen Energy Publications LLC
Blinov, D.; Borzenko, V.; Glagoleva, A.; Kazakov, A.
vol. 114, 2019, (cited By 0).
@conference{Blinov2019,
title = {Integration of metal hydride devices with polymer electrolyte fuel cells and electrolyzers for stationary applications},
author = {D. Blinov and V. Borzenko and A. Glagoleva and A. Kazakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072568458&doi=10.1051%2fe3sconf%2f201911406008&partnerID=40&md5=14ab46c313519dfb06c4d273557f7d56},
doi = {10.1051/e3sconf/201911406008},
year = {2019},
date = {2019-01-01},
journal = {E3S Web of Conferences},
volume = {114},
abstract = {This paper presents the experimental results of the system integration of a fuel cell (FC), an electrolyzer and a metal hydride hydrogen storage and purification system. A pilot scale experimental power installation H2Smart with an electric power of 1 kW is developed, and the results of its operation in different regimes are presented. The problems of hydrogen desorption for the supply of FC and hydrogen sorption from the electrolyzer at the start are shown. Possible solutions of this problem are proposed. © The Authors, published by EDP Sciences.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
This paper presents the experimental results of the system integration of a fuel cell (FC), an electrolyzer and a metal hydride hydrogen storage and purification system. A pilot scale experimental power installation H2Smart with an electric power of 1 kW is developed, and the results of its operation in different regimes are presented. The problems of hydrogen desorption for the supply of FC and hydrogen sorption from the electrolyzer at the start are shown. Possible solutions of this problem are proposed. © The Authors, published by EDP Sciences.
Kazakov, A.; Blinov, D.; Romanov, I.; Dunikov, D.; Borzenko, V.
Metal hydride technologies for renewable energy Conference
vol. 114, 2019, (cited By 5).
@conference{Kazakov2019,
title = {Metal hydride technologies for renewable energy},
author = {A. Kazakov and D. Blinov and I. Romanov and D. Dunikov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072568300&doi=10.1051%2fe3sconf%2f201911405005&partnerID=40&md5=d56031633a9aa4a50d5d9c9e3612727f},
doi = {10.1051/e3sconf/201911405005},
year = {2019},
date = {2019-01-01},
journal = {E3S Web of Conferences},
volume = {114},
abstract = {Significant progress in the installation of renewable energy requires the improvement of energy production and storage technologies. Hydrogen energy storage systems based on reversible metal hydride materials can be used as an energy backup system. Metal hydride hydrogen storage systems are distinguished by a high degree of safety of their use, since hydrogen is stored in a solid phase, a high volumetric density of stored hydrogen, and the possibility of long-term storage without losses. A distinctive feature of metal hydride materials is the reversible and selective absorption and release of high-purity hydrogen. This paper presents experimental studies of LaNi5-based metal hydride materials with a useful hydrogen capacity of 1.0–1.3 wt.% H2 with equilibrium pressures of 0.025 - 0.05 MPa and 0.1 - 1.2 MPa at moderate temperatures of 295 - 353 K for the hydrogen purification systems and hydrogen long-term storage systems, respectively. The applicability of metal hydride technologies for renewable energy sources as energy storage systems in the form of hydrogen is also shown. © The Authors, published by EDP Sciences.},
note = {cited By 5},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Significant progress in the installation of renewable energy requires the improvement of energy production and storage technologies. Hydrogen energy storage systems based on reversible metal hydride materials can be used as an energy backup system. Metal hydride hydrogen storage systems are distinguished by a high degree of safety of their use, since hydrogen is stored in a solid phase, a high volumetric density of stored hydrogen, and the possibility of long-term storage without losses. A distinctive feature of metal hydride materials is the reversible and selective absorption and release of high-purity hydrogen. This paper presents experimental studies of LaNi5-based metal hydride materials with a useful hydrogen capacity of 1.0–1.3 wt.% H2 with equilibrium pressures of 0.025 - 0.05 MPa and 0.1 - 1.2 MPa at moderate temperatures of 295 - 353 K for the hydrogen purification systems and hydrogen long-term storage systems, respectively. The applicability of metal hydride technologies for renewable energy sources as energy storage systems in the form of hydrogen is also shown. © The Authors, published by EDP Sciences.
2018
Blinov, D. V.; Borzenko, V. I.; Dunikov, D. O.; Kazakov, A. N.
Experimental investigations of thermal processes in the flow-throw hydrogen purification reactor Conference
vol. 1128, no. 1, 2018, (cited By 4).
@conference{Blinov2018,
title = {Experimental investigations of thermal processes in the flow-throw hydrogen purification reactor},
author = {D. V. Blinov and V. I. Borzenko and D. O. Dunikov and A. N. Kazakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058630755&doi=10.1088%2f1742-6596%2f1128%2f1%2f012120&partnerID=40&md5=c13d5d32ef0b0f173bdc0f54d3d0384a},
doi = {10.1088/1742-6596/1128/1/012120},
year = {2018},
date = {2018-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1128},
number = {1},
abstract = {The paper presents experimental results of thermal processes investigations in flow type metal hydride hydrogen storage and purification reactor RSP-8(I). Thermal processes in the reactor during hydrogen separation from carbon dioxide are studied. Optimal operation parameters for hydrogen purification and performance efficiency of metal hydride reactor RSP-8(I) are defined experimentally. Investigations of heat and mass transfer inside a vertical metal hydride reactor RSP-8(I) with 1 kg of LaFe 0.1 Mn 0.3 Ni 4.8 show considerable non-uniformity of pressure inside the bed. If the reactor is charged from the top, the hydrogen pressure at the bottom is lower by 0.2-0.3 MPa, which results in earlier occurrence of heat and mass transfer crisis. © 2018 Institute of Physics Publishing. All rights reserved.},
note = {cited By 4},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The paper presents experimental results of thermal processes investigations in flow type metal hydride hydrogen storage and purification reactor RSP-8(I). Thermal processes in the reactor during hydrogen separation from carbon dioxide are studied. Optimal operation parameters for hydrogen purification and performance efficiency of metal hydride reactor RSP-8(I) are defined experimentally. Investigations of heat and mass transfer inside a vertical metal hydride reactor RSP-8(I) with 1 kg of LaFe 0.1 Mn 0.3 Ni 4.8 show considerable non-uniformity of pressure inside the bed. If the reactor is charged from the top, the hydrogen pressure at the bottom is lower by 0.2-0.3 MPa, which results in earlier occurrence of heat and mass transfer crisis. © 2018 Institute of Physics Publishing. All rights reserved.
Borzenko, V. I.; Blinov, D. V.; Dunikov, D. O.; Leontiev, A. I.
Characteristic features of heat and mass transfer in hydrogen energy storage systems Conference
vol. 1128, no. 1, 2018, (cited By 5).
@conference{Borzenko2018,
title = {Characteristic features of heat and mass transfer in hydrogen energy storage systems},
author = {V. I. Borzenko and D. V. Blinov and D. O. Dunikov and A. I. Leontiev},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058617469&doi=10.1088%2f1742-6596%2f1128%2f1%2f012126&partnerID=40&md5=5c05708f73143695d916c3db422b98fc},
doi = {10.1088/1742-6596/1128/1/012126},
year = {2018},
date = {2018-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1128},
number = {1},
abstract = {Reversible metal hydrides are efficient solution for energy storage for distributed and autonomous power. Heat transfer is the major limiting factor for performance of metal hydride devices. Exothermic hydrogen absorption creates significant temperature gradients due to low effective thermal conductivity of powdered metal hydride beds. As the result of a strong dependence of absorption equilibrium pressure on temperature, this gradients lead to heat and mass transfer crisis and compositional inhomogeneities with high concentration of hydride phase near heat sinks and low concentration in the hot core of the bed. Development of the compositional inhomogeneities is accompanied by significant pressure drops over the bed, which can be measured experimentally. We performed experiments on hydrogen absorption in 1 kg metal hydride bed of of La 0.9 Ce 0.1 Ni 5 inside a water cooled reactor during charge at constant hydrogen flow within the range of 10-30 st.L/min at 0.59 MPa. Results show that heat and mass transfer crisis starts, when pressure in the reactor near hydrogen inlet becomes close to supply pressure, while pressure on the other side of the bed is lower by 0.15-0.25 MPa. These results confirm development of the hot core inside the bed, where reaction almost stops due to high temperature. © 2018 Institute of Physics Publishing. All rights reserved.},
note = {cited By 5},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Reversible metal hydrides are efficient solution for energy storage for distributed and autonomous power. Heat transfer is the major limiting factor for performance of metal hydride devices. Exothermic hydrogen absorption creates significant temperature gradients due to low effective thermal conductivity of powdered metal hydride beds. As the result of a strong dependence of absorption equilibrium pressure on temperature, this gradients lead to heat and mass transfer crisis and compositional inhomogeneities with high concentration of hydride phase near heat sinks and low concentration in the hot core of the bed. Development of the compositional inhomogeneities is accompanied by significant pressure drops over the bed, which can be measured experimentally. We performed experiments on hydrogen absorption in 1 kg metal hydride bed of of La 0.9 Ce 0.1 Ni 5 inside a water cooled reactor during charge at constant hydrogen flow within the range of 10-30 st.L/min at 0.59 MPa. Results show that heat and mass transfer crisis starts, when pressure in the reactor near hydrogen inlet becomes close to supply pressure, while pressure on the other side of the bed is lower by 0.15-0.25 MPa. These results confirm development of the hot core inside the bed, where reaction almost stops due to high temperature. © 2018 Institute of Physics Publishing. All rights reserved.
Khayrullina, A.; Blinov, D.; Borzenko, V.
2018, (cited By 0).
@conference{Khayrullina2018,
title = {Novel kw scale hydrogen energy storage system utilizing fuel cell exhaust air for hydrogen desorption process from metal hydride reactor},
author = {A. Khayrullina and D. Blinov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064170920&partnerID=40&md5=2e2dda22da8ace1b0b48d5688cf385f9},
year = {2018},
date = {2018-01-01},
journal = {ECOS 2018 - Proceedings of the 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems},
abstract = {More than 900 settlements in Russia are located outside the centralized grid. An average daily load of these small towns is around 30-40 kW with 70 kW peaks in January and October. Given high solar potential in these areas of 3.5 to 4.5 kWh per m2/day, a pilot project with solar panels in Batamai village produced 30 000 kWh and saved 11 tons of diesel in a year. In order to increase diesel replacement percentage and eliminate instability issues, a need for energy storage system was formulated. Current work highlights the development of a novel kW scale power production unit that utilizes metal-hydride (MH) energy storage and 1 kW PEM fuel cell (FC). In the effort to enable the technology for autonomous applications, the novel concept of using FC exhaust air for hydrogen desorption process replacing an external heating agent was successfully proved. Experimental setups and results of the experiments are presented and discussed. © 2018 University of Minho. All rights reserved.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
More than 900 settlements in Russia are located outside the centralized grid. An average daily load of these small towns is around 30-40 kW with 70 kW peaks in January and October. Given high solar potential in these areas of 3.5 to 4.5 kWh per m2/day, a pilot project with solar panels in Batamai village produced 30 000 kWh and saved 11 tons of diesel in a year. In order to increase diesel replacement percentage and eliminate instability issues, a need for energy storage system was formulated. Current work highlights the development of a novel kW scale power production unit that utilizes metal-hydride (MH) energy storage and 1 kW PEM fuel cell (FC). In the effort to enable the technology for autonomous applications, the novel concept of using FC exhaust air for hydrogen desorption process replacing an external heating agent was successfully proved. Experimental setups and results of the experiments are presented and discussed. © 2018 University of Minho. All rights reserved.
2017
Blinov, D. V.; Dunikov, D. O.; Kazakov, A. N.; Romanov, I. A.
vol. 891, no. 1, 2017, (cited By 4).
@conference{Blinov2017,
title = {Influence of geometrical non-uniformities of LaNi5 metal hydride bed on its structure and heat and mass transfer at hydrogen absorption},
author = {D. V. Blinov and D. O. Dunikov and A. N. Kazakov and I. A. Romanov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85037036827&doi=10.1088%2f1742-6596%2f891%2f1%2f012119&partnerID=40&md5=e6d4b0da3f4842ec4869e4a051f3fd44},
doi = {10.1088/1742-6596/891/1/012119},
year = {2017},
date = {2017-01-01},
journal = {Journal of Physics: Conference Series},
volume = {891},
number = {1},
abstract = {We perform cycling of a 500 g bed of La0.9Ce0.1Ni5 intermetallic compound in vertical and horizontal orientations with measurements of PCT isotherms, and further XRD and SEM investigation of bed structure. Significant decrease in equilibrium absorption pressure is observed in vertical orientation of the bed from 1.58 to 1.36 MPa at 333K, and from 2.68 to 2.51 MPa at 353K, accompanied by evident particle segregation by the bed height and densification at a bottom with formation of a robust agglomerate of small particles (< 10 μm) jointed with big particles of the size 100-200 μm, while particle size distribution in upper parts is more uniform with mean size about 10-20 μm. Fill density increases by 15% from the top to the bottom from 3.26 g/cm3 to 3.86 g/cm3 while structural properties of particles remain the same with X-ray density 8.31 g/cm3. Investigations of heat and mass transfer inside a vertical metal hydride reactor RSP-8 with 1 kg of La0.9Ce0.1Ni5 also show considerable non-uniformity of pressure inside the bed. If the reactor is charged from the top the hydrogen pressure at the bottom is lower on 0.2-0.3 MPa, which results in earlier occurrence of heat and mass transfer crisis. © Published under licence by IOP Publishing Ltd.},
note = {cited By 4},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
We perform cycling of a 500 g bed of La0.9Ce0.1Ni5 intermetallic compound in vertical and horizontal orientations with measurements of PCT isotherms, and further XRD and SEM investigation of bed structure. Significant decrease in equilibrium absorption pressure is observed in vertical orientation of the bed from 1.58 to 1.36 MPa at 333K, and from 2.68 to 2.51 MPa at 353K, accompanied by evident particle segregation by the bed height and densification at a bottom with formation of a robust agglomerate of small particles (< 10 μm) jointed with big particles of the size 100-200 μm, while particle size distribution in upper parts is more uniform with mean size about 10-20 μm. Fill density increases by 15% from the top to the bottom from 3.26 g/cm3 to 3.86 g/cm3 while structural properties of particles remain the same with X-ray density 8.31 g/cm3. Investigations of heat and mass transfer inside a vertical metal hydride reactor RSP-8 with 1 kg of La0.9Ce0.1Ni5 also show considerable non-uniformity of pressure inside the bed. If the reactor is charged from the top the hydrogen pressure at the bottom is lower on 0.2-0.3 MPa, which results in earlier occurrence of heat and mass transfer crisis. © Published under licence by IOP Publishing Ltd.
2016
Blinov, D. V.; Dunikov, D. O.; Kazakov, A. N.
Measuring the gas permeability of a metal hydride bed of the LaNi5 type alloy Journal Article
In: High Temperature, vol. 54, no. 1, pp. 153-156, 2016, (cited By 7).
@article{Blinov2016153,
title = {Measuring the gas permeability of a metal hydride bed of the LaNi5 type alloy},
author = {D. V. Blinov and D. O. Dunikov and A. N. Kazakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84961665292&doi=10.1134%2fS0018151X1506005X&partnerID=40&md5=781853315876d051f37636aac3abb8ac},
doi = {10.1134/S0018151X1506005X},
year = {2016},
date = {2016-01-01},
journal = {High Temperature},
volume = {54},
number = {1},
pages = {153-156},
abstract = {We have tested the neutral, against the sorption material, gas (nitrogen) in the RKhO-8 metal hydride reactor containing 1 kg of the LaNi4.8Mn0.3Fe0.1 alloy and have calculated the viscous permeability coefficient: k = 0.42 ± 0.08 μm2. © 2016, Pleiades Publishing, Ltd.},
note = {cited By 7},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
We have tested the neutral, against the sorption material, gas (nitrogen) in the RKhO-8 metal hydride reactor containing 1 kg of the LaNi4.8Mn0.3Fe0.1 alloy and have calculated the viscous permeability coefficient: k = 0.42 ± 0.08 μm2. © 2016, Pleiades Publishing, Ltd.
Dunikov, D.; Borzenko, V.; Blinov, D.; Kazakov, A.; Lin, C. -Y.; Wu, S. -Y.; Chu, C. -Y.
Biohydrogen purification using metal hydride technologies Journal Article
In: International Journal of Hydrogen Energy, vol. 41, no. 46, pp. 21787-21794, 2016, (cited By 33).
@article{Dunikov201621787,
title = {Biohydrogen purification using metal hydride technologies},
author = {D. Dunikov and V. Borzenko and D. Blinov and A. Kazakov and C. -Y. Lin and S. -Y. Wu and C. -Y. Chu},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84997831598&doi=10.1016%2fj.ijhydene.2016.08.190&partnerID=40&md5=6190ee98cd5996164695721cc89aa4b5},
doi = {10.1016/j.ijhydene.2016.08.190},
year = {2016},
date = {2016-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {41},
number = {46},
pages = {21787-21794},
abstract = {Metal hydrides are known for their ability of selective hydrogen absorption and might be used for hydrogen purification. We demonstrate separation of hydrogen/carbon dioxide mixtures with the use of two AB5-type alloys. A metal hydride reactor was filled with 1 kg of “high-pressure” alloy La0.9Ce0.1Ni5 (Peq = 1.96 bar at 293 K) and 1 kg of “low-pressure” alloy LaNi4.8Mn0.3Fe0.1 (Peq = 0.38 bar at 293 K), maximum H2 capacity is 140 st.L, nominal operating H2 capacity is 110 st.L. Hydrogen concentration was in the range 40–60 vol.%, feed pressure 5.6 bar. Separation efficiency and hydrogen recovery depend on equilibrium pressure of absorption, which has to be as low as possible to increase hydrogen recovery. The purification rate of 81 st.L/h from a mixture containing 59 vol.% of hydrogen with recovery 94% was achieved for the “low-pressure” alloy. The results show that metal hydride H2/CO2 separation unit can be a second stage of a biohydrogen upgrade system after a membrane module. Polymer membranes can defend metal hydrides from poisonous impurities and high selectivity of metal hydrides can improve the overall performance of the purification system. © 2016 Hydrogen Energy Publications LLC},
note = {cited By 33},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Metal hydrides are known for their ability of selective hydrogen absorption and might be used for hydrogen purification. We demonstrate separation of hydrogen/carbon dioxide mixtures with the use of two AB5-type alloys. A metal hydride reactor was filled with 1 kg of “high-pressure” alloy La0.9Ce0.1Ni5 (Peq = 1.96 bar at 293 K) and 1 kg of “low-pressure” alloy LaNi4.8Mn0.3Fe0.1 (Peq = 0.38 bar at 293 K), maximum H2 capacity is 140 st.L, nominal operating H2 capacity is 110 st.L. Hydrogen concentration was in the range 40–60 vol.%, feed pressure 5.6 bar. Separation efficiency and hydrogen recovery depend on equilibrium pressure of absorption, which has to be as low as possible to increase hydrogen recovery. The purification rate of 81 st.L/h from a mixture containing 59 vol.% of hydrogen with recovery 94% was achieved for the “low-pressure” alloy. The results show that metal hydride H2/CO2 separation unit can be a second stage of a biohydrogen upgrade system after a membrane module. Polymer membranes can defend metal hydrides from poisonous impurities and high selectivity of metal hydrides can improve the overall performance of the purification system. © 2016 Hydrogen Energy Publications LLC
2014
Blinov, D. V.; Borzenko, V. I.; Dunikov, D. O.; Romanov, I. A.
Experimental investigations and a simple balance model of a metal hydride reactor Journal Article
In: International Journal of Hydrogen Energy, vol. 39, no. 33, pp. 19361-19368, 2014, (cited By 28).
@article{Blinov201419361,
title = {Experimental investigations and a simple balance model of a metal hydride reactor},
author = {D. V. Blinov and V. I. Borzenko and D. O. Dunikov and I. A. Romanov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908293145&doi=10.1016%2fj.ijhydene.2014.07.048&partnerID=40&md5=76d6d931329e4d7a5da3c88b8c103ce1},
doi = {10.1016/j.ijhydene.2014.07.048},
year = {2014},
date = {2014-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {39},
number = {33},
pages = {19361-19368},
abstract = {The metal hydride reactor filled with 5 kg of the AB5-type (LaFe0.5Mn0.3Ni4.8) alloy was investigated with respect to the hydrogen discharge rates classified using C-rate value, which is discharge of the maximum hydrogen capacity 750 st L within 1 h. The reactor cannot be fully discharged with a constant flow rate, for each temperature of hot water and flow rate there exists a moment of crisis at which the hydrogen flow drops under the constant value. The nominal capacity of the reactor reaches 80% of maximum capacity if sufficient heat transfer is provided. The simple balance model of a metal hydride reactor is developed based on the assumption of uniform temperature and pressure inside a metal hydride bed. The model permits to predict behavior of the metal hydride reactor in different operation regimes, quantitative agreement is obtained for low C-rates (less than 4) and sub-critical modes. © 2014 Hydrogen Energy Publications, LLC. All rights reserved.},
note = {cited By 28},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The metal hydride reactor filled with 5 kg of the AB5-type (LaFe0.5Mn0.3Ni4.8) alloy was investigated with respect to the hydrogen discharge rates classified using C-rate value, which is discharge of the maximum hydrogen capacity 750 st L within 1 h. The reactor cannot be fully discharged with a constant flow rate, for each temperature of hot water and flow rate there exists a moment of crisis at which the hydrogen flow drops under the constant value. The nominal capacity of the reactor reaches 80% of maximum capacity if sufficient heat transfer is provided. The simple balance model of a metal hydride reactor is developed based on the assumption of uniform temperature and pressure inside a metal hydride bed. The model permits to predict behavior of the metal hydride reactor in different operation regimes, quantitative agreement is obtained for low C-rates (less than 4) and sub-critical modes. © 2014 Hydrogen Energy Publications, LLC. All rights reserved.