41.
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.
42.
Dunikov, D. O.
Cycle improvement and hydrogen steam superheating at Mutnovsky geothermal power plant Journal Article
In: Case Studies in Thermal Engineering, vol. 12, pp. 736-741, 2018, (cited By 13).
@article{Dunikov2018736,
title = {Cycle improvement and hydrogen steam superheating at Mutnovsky geothermal power plant},
author = {D. O. Dunikov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054911130&doi=10.1016%2fj.csite.2018.09.010&partnerID=40&md5=112f21077e9cfb13f13fee683730afc8},
doi = {10.1016/j.csite.2018.09.010},
year = {2018},
date = {2018-01-01},
journal = {Case Studies in Thermal Engineering},
volume = {12},
pages = {736-741},
abstract = {This study is aimed at a possibility of hydrogen production and hydrogen steam superheating at a single-flash 50 MW Mutnovsky geothermal power plant stage 1. A modification by introduction of a low-pressure single-flash unit utilizing energy of the separated liquid is proposed, and the integrated single- and double-flash cycle is analyzed. The second flash process gives a maximum possible increase of the installed capacity on 11.1 MW for the flash temperature of 92 °C, and 9 MW for 120 °C. Currently the plant does not use 12.3% of the geothermal steam for electricity generation, partly due to demand side management from a grid operator. Excess power can be used for water electrolysis and for each 1% of saved steam 92 t of H2 can be produced annually. Hydrogen combustion in a high temperature hydrogen-oxygen steam generator can be used for steam superheating in a second flash process, achieving the increase of steam temperature at the low pressure turbine inlet by 20-30 K, and an increase of steam dryness at the turbine outlet by 2-4%. Additional available power rises by 5-10% (0.5-0.9 MW) and overall thermal efficiency of the plant can be increased from 10% to 12.5%. © 2018 The Author.},
note = {cited By 13},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
This study is aimed at a possibility of hydrogen production and hydrogen steam superheating at a single-flash 50 MW Mutnovsky geothermal power plant stage 1. A modification by introduction of a low-pressure single-flash unit utilizing energy of the separated liquid is proposed, and the integrated single- and double-flash cycle is analyzed. The second flash process gives a maximum possible increase of the installed capacity on 11.1 MW for the flash temperature of 92 °C, and 9 MW for 120 °C. Currently the plant does not use 12.3% of the geothermal steam for electricity generation, partly due to demand side management from a grid operator. Excess power can be used for water electrolysis and for each 1% of saved steam 92 t of H2 can be produced annually. Hydrogen combustion in a high temperature hydrogen-oxygen steam generator can be used for steam superheating in a second flash process, achieving the increase of steam temperature at the low pressure turbine inlet by 20-30 K, and an increase of steam dryness at the turbine outlet by 2-4%. Additional available power rises by 5-10% (0.5-0.9 MW) and overall thermal efficiency of the plant can be increased from 10% to 12.5%. © 2018 The Author.
43.
Schastlivtsev, A. I.; Borzenko, V. I.
vol. 1128, no. 1, 2018, (cited By 0).
@conference{Schastlivtsev2018,
title = {Investigation of the distribution of heat fluxes in the combustion chamber of a hydrogen-oxygen steam generator},
author = {A. I. Schastlivtsev and V. I. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058646848&doi=10.1088%2f1742-6596%2f1128%2f1%2f012077&partnerID=40&md5=8d553f98cc71989585a0c081b1db5d13},
doi = {10.1088/1742-6596/1128/1/012077},
year = {2018},
date = {2018-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1128},
number = {1},
abstract = {The article presents the results of experimental studies of thermal processes in combustion and evaporation chambers of an experimental hydrogen-oxygen steam generator with a thermal capacity up to 25 MW developed at the Joint Institute for High Temperatures of the Russian Academy of Sciences (JIHT RAS). The studies have shown that the design of the mixing element has a significant effect on the heat fluxes in the combustion chamber. The effect of several designs on heat fluxes near the fire wall and on the completeness of the combustion of hydrogen in oxygen have been investigated experimentally. The result of experimental study of thermal processes in a hydrogen-oxygen-steam generator with a thermal capacity of up to 25 MW allowed estimating the real heat fluxes and correction factors for the calculations. © 2018 Institute of Physics Publishing. All rights reserved.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The article presents the results of experimental studies of thermal processes in combustion and evaporation chambers of an experimental hydrogen-oxygen steam generator with a thermal capacity up to 25 MW developed at the Joint Institute for High Temperatures of the Russian Academy of Sciences (JIHT RAS). The studies have shown that the design of the mixing element has a significant effect on the heat fluxes in the combustion chamber. The effect of several designs on heat fluxes near the fire wall and on the completeness of the combustion of hydrogen in oxygen have been investigated experimentally. The result of experimental study of thermal processes in a hydrogen-oxygen-steam generator with a thermal capacity of up to 25 MW allowed estimating the real heat fluxes and correction factors for the calculations. © 2018 Institute of Physics Publishing. All rights reserved.
44.
Romanov, I. A.; Borzenko, V. I.; Kazakov, A. N.
Influence of high thermal conductivity addition on PCT-isotherms of hydrogen storage alloy Conference
vol. 1128, no. 1, 2018, (cited By 5).
@conference{Romanov2018,
title = {Influence of high thermal conductivity addition on PCT-isotherms of hydrogen storage alloy},
author = {I. A. Romanov and V. I. Borzenko and A. N. Kazakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058661554&doi=10.1088%2f1742-6596%2f1128%2f1%2f012105&partnerID=40&md5=0c2abc66c8fcb671cb59a84171f21552},
doi = {10.1088/1742-6596/1128/1/012105},
year = {2018},
date = {2018-01-01},
journal = {Journal of Physics: Conference Series},
volume = {1128},
number = {1},
abstract = {High reaction heat of an interaction between intermetallic compounds and hydrogen along with low thermal conductivity of fine dispersed metal hydride powders lead to crisis phenomena in metal hydride hydrogen storage facilities. Thus investigations of composite materials with improved heat transfer are of great interest for development of hydrogen storage technologies. A composite material was made of powders of activated La 0.9 Ce 0.1 Ni 5 -alloy and copper. PCT-isotherms of hydrogen sorption and desorption was measured and compared for the composite and the pure alloy at temperature of 313, 333 and 353K. Values of ΔH and ΔS of the hydrogen sorption and desorption reactions were calculated, and temperature and pressure relaxation in the pure alloy and the composite material beds were studied. A significant difference between hydrogen storage behaviour of the pure alloy and the composite has been revealed. © 2018 Institute of Physics Publishing. All rights reserved.},
note = {cited By 5},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
High reaction heat of an interaction between intermetallic compounds and hydrogen along with low thermal conductivity of fine dispersed metal hydride powders lead to crisis phenomena in metal hydride hydrogen storage facilities. Thus investigations of composite materials with improved heat transfer are of great interest for development of hydrogen storage technologies. A composite material was made of powders of activated La 0.9 Ce 0.1 Ni 5 -alloy and copper. PCT-isotherms of hydrogen sorption and desorption was measured and compared for the composite and the pure alloy at temperature of 313, 333 and 353K. Values of ΔH and ΔS of the hydrogen sorption and desorption reactions were calculated, and temperature and pressure relaxation in the pure alloy and the composite material beds were studied. A significant difference between hydrogen storage behaviour of the pure alloy and the composite has been revealed. © 2018 Institute of Physics Publishing. All rights reserved.
45.
Borzenko, V. I.; Schastlivtsev, A. I.
Efficiency of Steam Generation in a Hydrogen-Oxygen Steam Generator of Kilowatt-Power Class Journal Article
In: High Temperature, vol. 56, no. 6, pp. 927-932, 2018, (cited By 10).
@article{Borzenko2018927,
title = {Efficiency of Steam Generation in a Hydrogen-Oxygen Steam Generator of Kilowatt-Power Class},
author = {V. I. Borzenko and A. I. Schastlivtsev},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059487026&doi=10.1134%2fS0018151X1806007X&partnerID=40&md5=1423ee0a0f24e56f288c81dd0244d391},
doi = {10.1134/S0018151X1806007X},
year = {2018},
date = {2018-01-01},
journal = {High Temperature},
volume = {56},
number = {6},
pages = {927-932},
abstract = {The article presents the results of experimental studies and optimization of the processes of mixture formation, combustion, and steam generation in a kilowatt power–class, experimental, hydrogen-oxygen steam generator. The optimal design of the mixturing element and the combustion chamber for their failsafe operation and minimal hydrogen content in the generated steam is determined. The influence of the pressure in the evaporation chamber and of the generated steam temperature on the completeness of hydrogen combustion is studied. The results of multiregime tests of the hydrogen-oxygen steam generator at a power of up to 200 kW are presented. © 2018, Pleiades Publishing, Inc.},
note = {cited By 10},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The article presents the results of experimental studies and optimization of the processes of mixture formation, combustion, and steam generation in a kilowatt power–class, experimental, hydrogen-oxygen steam generator. The optimal design of the mixturing element and the combustion chamber for their failsafe operation and minimal hydrogen content in the generated steam is determined. The influence of the pressure in the evaporation chamber and of the generated steam temperature on the completeness of hydrogen combustion is studied. The results of multiregime tests of the hydrogen-oxygen steam generator at a power of up to 200 kW are presented. © 2018, Pleiades Publishing, Inc.
46.
Tomarov, G. V.; Borzenko, V. I.; Shipkov, A. A.; Sorokina, E. V.
Achieving More Efficient and Reliable Operation of Geothermal Turbines by Using a Secondary Flash Steam Superheating System Journal Article
In: Thermal Engineering, vol. 65, no. 10, pp. 734-740, 2018, (cited By 1).
@article{Tomarov2018734,
title = {Achieving More Efficient and Reliable Operation of Geothermal Turbines by Using a Secondary Flash Steam Superheating System},
author = {G. V. Tomarov and V. I. Borzenko and A. A. Shipkov and E. V. Sorokina},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053714315&doi=10.1134%2fS0040601518100117&partnerID=40&md5=68f427a35f7a840d9493e30fda68ef2c},
doi = {10.1134/S0040601518100117},
year = {2018},
date = {2018-01-01},
journal = {Thermal Engineering},
volume = {65},
number = {10},
pages = {734-740},
abstract = {Problems encountered in operation of saturated steam geothermal turbine units that stem from the specific features of a geothermal heat carrier are considered. A two-phase state, increased content of salts, and corrosiveness of geothermal working medium have a negative influence on the efficiency and reliability of the turbine’s first and last stages. Owing to high concentrations of impurities in the liquid phase, the first stages suffer from intense generation of deposits. The resulting decrease in the power output is due to both fouling of the flow path and significantly growing roughness of the turbine cascade blades. The flow of wet steam in the geothermal turbine flow path is accompanied by droplet impingement erosion of the last-stage blades and corrosion fatigue of the metal of rotor elements. In addition, the losses due to steam wetness in the flow path cause an essential decrease of the geothermal turbine efficiency. The article gives examples of erosioninduced damage inflicted to the last-stage rotor blades, corrosion fatigue of the metal of integrally-machined shroud elements, and deposits in the nozzle vane cascades of geothermal turbine stages. The article also presents the results from numerical investigations of the effect that the initial steam wetness has on the silicic acid concentration in the wet steam flow liquid phase in a 4.0 MW geothermal turbine’s stages. A method for achieving more efficient and reliable operation of the geothermal turbine low-pressure section by applying a secondary flash steam superheating system with the use of a hydrogen steam generator is proposed. The article presents a process arrangement for preparing secondary flash steam supplied to the geothermal turbine low-pressure section in which the flash steam is evaporated and superheated through the use of a hydrogen steam generator. The technical characteristics of the system for preparing secondary flash steam to be used in the intermediate inlet to the turbine were preliminarily assessed (taking the upgrading of the Mutnovsk geothermal power plant as an example), and it has been shown from this assessment that the wetness degree in the low-pressure section can be decreased down to its final value equal to 2.0%. © 2018, Pleiades Publishing, Inc.},
note = {cited By 1},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Problems encountered in operation of saturated steam geothermal turbine units that stem from the specific features of a geothermal heat carrier are considered. A two-phase state, increased content of salts, and corrosiveness of geothermal working medium have a negative influence on the efficiency and reliability of the turbine’s first and last stages. Owing to high concentrations of impurities in the liquid phase, the first stages suffer from intense generation of deposits. The resulting decrease in the power output is due to both fouling of the flow path and significantly growing roughness of the turbine cascade blades. The flow of wet steam in the geothermal turbine flow path is accompanied by droplet impingement erosion of the last-stage blades and corrosion fatigue of the metal of rotor elements. In addition, the losses due to steam wetness in the flow path cause an essential decrease of the geothermal turbine efficiency. The article gives examples of erosioninduced damage inflicted to the last-stage rotor blades, corrosion fatigue of the metal of integrally-machined shroud elements, and deposits in the nozzle vane cascades of geothermal turbine stages. The article also presents the results from numerical investigations of the effect that the initial steam wetness has on the silicic acid concentration in the wet steam flow liquid phase in a 4.0 MW geothermal turbine’s stages. A method for achieving more efficient and reliable operation of the geothermal turbine low-pressure section by applying a secondary flash steam superheating system with the use of a hydrogen steam generator is proposed. The article presents a process arrangement for preparing secondary flash steam supplied to the geothermal turbine low-pressure section in which the flash steam is evaporated and superheated through the use of a hydrogen steam generator. The technical characteristics of the system for preparing secondary flash steam to be used in the intermediate inlet to the turbine were preliminarily assessed (taking the upgrading of the Mutnovsk geothermal power plant as an example), and it has been shown from this assessment that the wetness degree in the low-pressure section can be decreased down to its final value equal to 2.0%. © 2018, Pleiades Publishing, Inc.
47.
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.
48.
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.
49.
Kazakov, A. N.; Romanov, I. A.; Kuleshov, V. N.; Dunikov, D. O.
vol. 891, no. 1, 2017, (cited By 6).
@conference{Kazakov2017,
title = {Experimental investigations of adsorption characteristics and porosity of activated metal hydride powders},
author = {A. N. Kazakov and I. A. Romanov and V. N. Kuleshov and D. O. Dunikov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85037032939&doi=10.1088%2f1742-6596%2f891%2f1%2f012115&partnerID=40&md5=335c3da545e64a0d8896125851fa9d2e},
doi = {10.1088/1742-6596/891/1/012115},
year = {2017},
date = {2017-01-01},
journal = {Journal of Physics: Conference Series},
volume = {891},
number = {1},
abstract = {In the present work non-uniformities of microstructure, porosity and adsorption characteristics of La0.9Ce0.1Ni5 metal hydride by the height of the bed are investigated. A 500 g metal hydride bed was cycled inside a vertical metal hydride reactor and three samples was taken from top, middle and bottom of the bed. Non-uniform particle distributions and bed densification were observed, the bed porosity is around 0.58-0.67 at the top and middle parts of the bed and 0.46-0.54 at the bottom, where a dense and robust agglomerate was formed during the cycling. Specific surface area measured by nitrogen adsorption methods is 1.8-2.1 m2/g at the top of the bed, 4.2-5.4 m2/g in the middle and 1.1-1.5 m2/g at the bottom. The maximum is connected with higher degree of particle dispersion without effects from particle agglomeration. © Published under licence by IOP Publishing Ltd.},
note = {cited By 6},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
In the present work non-uniformities of microstructure, porosity and adsorption characteristics of La0.9Ce0.1Ni5 metal hydride by the height of the bed are investigated. A 500 g metal hydride bed was cycled inside a vertical metal hydride reactor and three samples was taken from top, middle and bottom of the bed. Non-uniform particle distributions and bed densification were observed, the bed porosity is around 0.58-0.67 at the top and middle parts of the bed and 0.46-0.54 at the bottom, where a dense and robust agglomerate was formed during the cycling. Specific surface area measured by nitrogen adsorption methods is 1.8-2.1 m2/g at the top of the bed, 4.2-5.4 m2/g in the middle and 1.1-1.5 m2/g at the bottom. The maximum is connected with higher degree of particle dispersion without effects from particle agglomeration. © Published under licence by IOP Publishing Ltd.
50.
Borzenko, V. I.; Dunikov, D. O.
Feasibility analysis of a hydrogen backup power system for Russian telecom market Conference
vol. 891, no. 1, 2017, (cited By 4).
@conference{Borzenko2017,
title = {Feasibility analysis of a hydrogen backup power system for Russian telecom market},
author = {V. I. Borzenko and D. O. Dunikov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85037027183&doi=10.1088%2f1742-6596%2f891%2f1%2f012077&partnerID=40&md5=a97e75c0db38adfc108c425687b48e58},
doi = {10.1088/1742-6596/891/1/012077},
year = {2017},
date = {2017-01-01},
journal = {Journal of Physics: Conference Series},
volume = {891},
number = {1},
abstract = {We performed feasibility analysis of 10 kW hydrogen backup power system (H2BS) consisting of a water electrolyzer, a metal hydride hydrogen storage and a fuel cell. Capital investments in H2BS are mostly determined by the costs of the PEM electrolyzer, the fuel cell and solid state hydrogen storage materials, for single unit or small series manufacture the cost of AB5-type intermetallic compound can reach 50% of total system cost. Today the capital investments in H2BS are 3 times higher than in conventional lead-acid system of the same capacity. Wide distribution of fuel cell hydrogen vehicles, development of hydrogen infrastructure, and mass production of hydrogen power systems will for sure lower capital investments in fuel cell backup power. Operational expenditures for H2BS is only 15% from the expenditures for lead acid systems, and after 4-5 years of exploitation the total cost of ownership will become lower than for batteries. © Published under licence by IOP Publishing Ltd.},
note = {cited By 4},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
We performed feasibility analysis of 10 kW hydrogen backup power system (H2BS) consisting of a water electrolyzer, a metal hydride hydrogen storage and a fuel cell. Capital investments in H2BS are mostly determined by the costs of the PEM electrolyzer, the fuel cell and solid state hydrogen storage materials, for single unit or small series manufacture the cost of AB5-type intermetallic compound can reach 50% of total system cost. Today the capital investments in H2BS are 3 times higher than in conventional lead-acid system of the same capacity. Wide distribution of fuel cell hydrogen vehicles, development of hydrogen infrastructure, and mass production of hydrogen power systems will for sure lower capital investments in fuel cell backup power. Operational expenditures for H2BS is only 15% from the expenditures for lead acid systems, and after 4-5 years of exploitation the total cost of ownership will become lower than for batteries. © Published under licence by IOP Publishing Ltd.
51.
Schastlivtsev, A. I.; Borzenko, V. I.
vol. 891, no. 1, 2017, (cited By 14).
@conference{Schastlivtsev2017,
title = {Hydrogen-oxygen steam generator applications for increasing the efficiency, maneuverability and reliability of power production},
author = {A. I. Schastlivtsev and V. I. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85037050314&doi=10.1088%2f1742-6596%2f891%2f1%2f012213&partnerID=40&md5=4a9a094a5e5d053d56fc88ef88b4ae63},
doi = {10.1088/1742-6596/891/1/012213},
year = {2017},
date = {2017-01-01},
journal = {Journal of Physics: Conference Series},
volume = {891},
number = {1},
abstract = {The comparative feasibility study of the energy storage technologies showed good applicability of hydrogen-oxygen steam generators (HOSG) based energy storage systems with large-scale hydrogen production. The developed scheme solutions for the use of HOSGs for thermal power (TPP) and nuclear power plants (NPP), and the feasibility analysis that have been carried out have shown that their use makes it possible to increase the maneuverability of steam turbines and provide backup power supply in the event of failure of the main steam generating equipment. The main design solutions for the integration of hydrogen-oxygen steam generators into the main power equipment of TPPs and NPPs, as well as their optimal operation modes, are considered. © Published under licence by IOP Publishing Ltd.},
note = {cited By 14},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
The comparative feasibility study of the energy storage technologies showed good applicability of hydrogen-oxygen steam generators (HOSG) based energy storage systems with large-scale hydrogen production. The developed scheme solutions for the use of HOSGs for thermal power (TPP) and nuclear power plants (NPP), and the feasibility analysis that have been carried out have shown that their use makes it possible to increase the maneuverability of steam turbines and provide backup power supply in the event of failure of the main steam generating equipment. The main design solutions for the integration of hydrogen-oxygen steam generators into the main power equipment of TPPs and NPPs, as well as their optimal operation modes, are considered. © Published under licence by IOP Publishing Ltd.
52.
Aminov, R. Z.; Schastlivtsev, A. I.; Bairamov, A. N.
On the issue of investigating the kinetics of processes in dissociated water steam Journal Article
In: International Journal of Hydrogen Energy, vol. 42, no. 32, pp. 20843-20848, 2017, (cited By 13).
@article{Aminov201720843,
title = {On the issue of investigating the kinetics of processes in dissociated water steam},
author = {R. Z. Aminov and A. I. Schastlivtsev and A. N. Bairamov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85025091473&doi=10.1016%2fj.ijhydene.2017.07.039&partnerID=40&md5=829a620ec40e6534d2843b9d2b473ebf},
doi = {10.1016/j.ijhydene.2017.07.039},
year = {2017},
date = {2017-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {42},
number = {32},
pages = {20843-20848},
abstract = {The paper considers the problems of investigating the kinetics of processes in dissociated water steam as well as the questions concerning the use of hydrogen in energy cycles of NPPs. The scientific papers on experimental investigation of stoichiometric hydrogen combustion in oxygen in order to produce water steam have been reviewed here. Moreover, some objectives and problems which should be solved to support the efficient use of hydrogen at NPP have been developed in the paper. The authors have suggested the experimental procedure and the schematic of the experimental device to investigate the kinetics of dissociated water steam at pressure from 0.5 to 2 MPa at different cooling rates and produced steam temperatures. © 2017 Hydrogen Energy Publications LLC},
note = {cited By 13},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The paper considers the problems of investigating the kinetics of processes in dissociated water steam as well as the questions concerning the use of hydrogen in energy cycles of NPPs. The scientific papers on experimental investigation of stoichiometric hydrogen combustion in oxygen in order to produce water steam have been reviewed here. Moreover, some objectives and problems which should be solved to support the efficient use of hydrogen at NPP have been developed in the paper. The authors have suggested the experimental procedure and the schematic of the experimental device to investigate the kinetics of dissociated water steam at pressure from 0.5 to 2 MPa at different cooling rates and produced steam temperatures. © 2017 Hydrogen Energy Publications LLC
53.
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
54.
Kazakov, A. N.; Dunikov, D. O.; Mitrokhin, S. V.
AB5-type intermetallic compounds for biohydrogen purification and storage Journal Article
In: International Journal of Hydrogen Energy, vol. 41, no. 46, pp. 21774-21779, 2016, (cited By 8).
@article{Kazakov201621774,
title = {AB5-type intermetallic compounds for biohydrogen purification and storage},
author = {A. N. Kazakov and D. O. Dunikov and S. V. Mitrokhin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84994137710&doi=10.1016%2fj.ijhydene.2016.07.243&partnerID=40&md5=03f579d597dba46dfbe80c3b46630846},
doi = {10.1016/j.ijhydene.2016.07.243},
year = {2016},
date = {2016-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {41},
number = {46},
pages = {21774-21779},
abstract = {Intermetallic compounds (IMC) provide a promising solution for a biohydrogen purification problem due to their selective hydrogen absorption from gaseous mixtures produced during dark fermentation. A main IMC characteristic for use in biohydrogen purification is hydrogen equilibrium pressure, which has to be as low as possible during hydrogen sorption from a mixture. Intermetallic compounds LaNi5–xMx (M−Al, Sn, Fe; x = 0.1–0.3) were prepared and their PCT properties were investigated. Compositions LaNi4.6Fe0.2Al0.2 (0.049 MPa at 293 K) and LaNi4.6Sn0.2Fe0.2 (0.055 MPa at 293 K) are found to be the most promising for practical applications due to low equilibrium pressures. © 2016 Hydrogen Energy Publications LLC},
note = {cited By 8},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Intermetallic compounds (IMC) provide a promising solution for a biohydrogen purification problem due to their selective hydrogen absorption from gaseous mixtures produced during dark fermentation. A main IMC characteristic for use in biohydrogen purification is hydrogen equilibrium pressure, which has to be as low as possible during hydrogen sorption from a mixture. Intermetallic compounds LaNi5–xMx (M−Al, Sn, Fe; x = 0.1–0.3) were prepared and their PCT properties were investigated. Compositions LaNi4.6Fe0.2Al0.2 (0.049 MPa at 293 K) and LaNi4.6Sn0.2Fe0.2 (0.055 MPa at 293 K) are found to be the most promising for practical applications due to low equilibrium pressures. © 2016 Hydrogen Energy Publications LLC
55.
Yu, S. -P.; Lai, M. -W.; Chu, C. -Y.; Huang, C. -L.; Lin, C. -Y.; Borzenko, V. I.; Dunikov, D. O.; Kazakov, A. N.
Integration of low-pressure hydrogen storage cylinder and automatic controller for carbon deposit removal in car engine Journal Article
In: International Journal of Hydrogen Energy, vol. 41, no. 46, pp. 21795-21801, 2016, (cited By 3).
@article{Yu201621795,
title = {Integration of low-pressure hydrogen storage cylinder and automatic controller for carbon deposit removal in car engine},
author = {S. -P. Yu and M. -W. Lai and C. -Y. Chu and C. -L. Huang and C. -Y. Lin and V. I. Borzenko and D. O. Dunikov and A. N. Kazakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981730992&doi=10.1016%2fj.ijhydene.2016.07.191&partnerID=40&md5=757227db7f0289dfc0f70a796ffafd5b},
doi = {10.1016/j.ijhydene.2016.07.191},
year = {2016},
date = {2016-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {41},
number = {46},
pages = {21795-21801},
abstract = {This study has completed the preliminary test of the “automotive hydrogen gas release controller with low pressure hydrogen storage module” in the carbon removal of cars engine, this product has integrated (1) a low pressure hydrogen storage cylinder (metal hydride) and (2) a solenoid valve controller with flow meter. Under normal temperature and pressure settings, this system is able to transfer hydrogen gas to the vehicle's intake air system and mixing with the air, entering the engine chamber. The solenoid valve controller and flow meter can control the optimized hydrogen gas output flow rate, activating the carbon deposit removal. The results of this study show that in the example for a 1,600 cc vehicle, 1690 USD may be saved for gasoline in a year with reducing 164.8 ton of CO2 emission (The enhancing of fuel utilization 11.6%). For a 2,000 cc vehicle, 3070 USD may be saved for gasoline in a year with reducing 291 ton of CO2 emission (The enhancing of fuel utilization 20.6%). A set of low pressure hydrogen storage system has been developed in this research, it is safe and convenient for consumers, the Solenoid Valve Controller and Flow meter allows for optimized use of hydrogen gas, reducing the waste of excess hydrogen gas. © 2016 Hydrogen Energy Publications LLC},
note = {cited By 3},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
This study has completed the preliminary test of the “automotive hydrogen gas release controller with low pressure hydrogen storage module” in the carbon removal of cars engine, this product has integrated (1) a low pressure hydrogen storage cylinder (metal hydride) and (2) a solenoid valve controller with flow meter. Under normal temperature and pressure settings, this system is able to transfer hydrogen gas to the vehicle's intake air system and mixing with the air, entering the engine chamber. The solenoid valve controller and flow meter can control the optimized hydrogen gas output flow rate, activating the carbon deposit removal. The results of this study show that in the example for a 1,600 cc vehicle, 1690 USD may be saved for gasoline in a year with reducing 164.8 ton of CO2 emission (The enhancing of fuel utilization 11.6%). For a 2,000 cc vehicle, 3070 USD may be saved for gasoline in a year with reducing 291 ton of CO2 emission (The enhancing of fuel utilization 20.6%). A set of low pressure hydrogen storage system has been developed in this research, it is safe and convenient for consumers, the Solenoid Valve Controller and Flow meter allows for optimized use of hydrogen gas, reducing the waste of excess hydrogen gas. © 2016 Hydrogen Energy Publications LLC
56.
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.
57.
Borzenko, V.; Eronin, A.
The use of air as heating agent in hydrogen metal hydride storage coupled with PEM fuel cell Journal Article
In: International Journal of Hydrogen Energy, vol. 41, no. 48, pp. 23120-23124, 2016, (cited By 17).
@article{Borzenko201623120,
title = {The use of air as heating agent in hydrogen metal hydride storage coupled with PEM fuel cell},
author = {V. Borzenko and A. Eronin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85004191376&doi=10.1016%2fj.ijhydene.2016.10.067&partnerID=40&md5=2049b8be628fbfd39b09e9a37d77ab08},
doi = {10.1016/j.ijhydene.2016.10.067},
year = {2016},
date = {2016-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {41},
number = {48},
pages = {23120-23124},
abstract = {The possibility to refuel air-cooled PEMFC by hydrogen desorbed from low temperature metal hydride storage using the FC exhaust air was successfully demonstrated. The volumetric flow of hydrogen exceeded the values needed to ensure 1.1 kW (e) FC capacity level. Experimental setup, the results of experimental investigations are presented and discussed, as well as the reserves for the technology application for kW scale power production units based on air-cooled fuel cells. © 2016 Hydrogen Energy Publications LLC},
note = {cited By 17},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The possibility to refuel air-cooled PEMFC by hydrogen desorbed from low temperature metal hydride storage using the FC exhaust air was successfully demonstrated. The volumetric flow of hydrogen exceeded the values needed to ensure 1.1 kW (e) FC capacity level. Experimental setup, the results of experimental investigations are presented and discussed, as well as the reserves for the technology application for kW scale power production units based on air-cooled fuel cells. © 2016 Hydrogen Energy Publications LLC
58.
Ustinov, A.; Khayrullina, A.; Borzenko, V.; Khmelik, M.; Sveshnikova, A.
Development method of Hybrid Energy Storage System, including PEM fuel cell and a battery Conference
vol. 745, no. 3, 2016, (cited By 4).
@conference{Ustinov2016,
title = {Development method of Hybrid Energy Storage System, including PEM fuel cell and a battery},
author = {A. Ustinov and A. Khayrullina and V. Borzenko and M. Khmelik and A. Sveshnikova},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84995436793&doi=10.1088%2f1742-6596%2f745%2f3%2f032152&partnerID=40&md5=58811fb7b7f57bd6a5b3674a529ead58},
doi = {10.1088/1742-6596/745/3/032152},
year = {2016},
date = {2016-01-01},
journal = {Journal of Physics: Conference Series},
volume = {745},
number = {3},
abstract = {Development of fuel cell (FC) and hydrogen metal-hydride storage (MH) technologies continuously demonstrate higher efficiency rates and higher safety, as hydrogen is stored at low pressures of about 2 bar in a bounded state. A combination of a FC/MH system with an electrolyser, powered with a renewable source, allows creation of an almost fully autonomous power system, which could potentially replace a diesel-generator as a back-up power supply. However, the system must be extended with an electro-chemical battery to start-up the FC and compensate the electric load when FC fails to deliver the necessary power. Present paper delivers the results of experimental and theoretical investigation of a hybrid energy system, including a proton exchange membrane (PEM) FC, MH- accumulator and an electro-chemical battery, development methodology for such systems and the modelling of different battery types, using hardware-in-the-loop approach. The economic efficiency of the proposed solution is discussed using an example of power supply of a real town of Batamai in Russia. © Published under licence by IOP Publishing Ltd.},
note = {cited By 4},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Development of fuel cell (FC) and hydrogen metal-hydride storage (MH) technologies continuously demonstrate higher efficiency rates and higher safety, as hydrogen is stored at low pressures of about 2 bar in a bounded state. A combination of a FC/MH system with an electrolyser, powered with a renewable source, allows creation of an almost fully autonomous power system, which could potentially replace a diesel-generator as a back-up power supply. However, the system must be extended with an electro-chemical battery to start-up the FC and compensate the electric load when FC fails to deliver the necessary power. Present paper delivers the results of experimental and theoretical investigation of a hybrid energy system, including a proton exchange membrane (PEM) FC, MH- accumulator and an electro-chemical battery, development methodology for such systems and the modelling of different battery types, using hardware-in-the-loop approach. The economic efficiency of the proposed solution is discussed using an example of power supply of a real town of Batamai in Russia. © Published under licence by IOP Publishing Ltd.
59.
Schastlivtsev, A. I.; Nazarova, O. V.
Hydrogen–air energy storage gas-turbine system Journal Article
In: Thermal Engineering (English translation of Teploenergetika), vol. 63, no. 2, pp. 107-113, 2016, (cited By 9).
@article{Schastlivtsev2016107,
title = {Hydrogen–air energy storage gas-turbine system},
author = {A. I. Schastlivtsev and O. V. Nazarova},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955622727&doi=10.1134%2fS0040601516010109&partnerID=40&md5=d83aad03c9dd1806f6164be86134148f},
doi = {10.1134/S0040601516010109},
year = {2016},
date = {2016-01-01},
journal = {Thermal Engineering (English translation of Teploenergetika)},
volume = {63},
number = {2},
pages = {107-113},
abstract = {A hydrogen–air energy storage gas-turbine unit is considered that can be used in both nuclear and centralized power industries. However, it is the most promising when used for power-generating plants based on renewable energy sources (RES). The basic feature of the energy storage system in question is combination of storing the energy in compressed air and hydrogen and oxygen produced by the water electrolysis. Such a process makes the energy storage more flexible, in particular, when applied to RES-based power-generating plants whose generation of power may considerably vary during the course of a day, and also reduces the specific cost of the system by decreasing the required volume of the reservoir. This will allow construction of such systems in any areas independent of the local topography in contrast to the compressed-air energy storage gas-turbine plants, which require large-sized underground reservoirs. It should be noted that, during the energy recovery, the air that arrives from the reservoir is heated by combustion of hydrogen in oxygen, which results in the gas-turbine exhaust gases practically free of substances hazardous to the health and the environment. The results of analysis of a hydrogen–air energy storage gas-turbine system are presented. Its layout and the principle of its operation are described and the basic parameters are computed. The units of the system are analyzed and their costs are assessed; the recovery factor is estimated at more than 60%. According to the obtained results, almost all main components of the hydrogen–air energy storage gas-turbine system are well known at present; therefore, no considerable R&D costs are required. A new component of the system is the H2–O2 combustion chamber; a difficulty in manufacturing it is the necessity of ensuring the combustion of hydrogen in oxygen as complete as possible and preventing formation of nitric oxides. © 2016, Pleiades Publishing, Inc.},
note = {cited By 9},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A hydrogen–air energy storage gas-turbine unit is considered that can be used in both nuclear and centralized power industries. However, it is the most promising when used for power-generating plants based on renewable energy sources (RES). The basic feature of the energy storage system in question is combination of storing the energy in compressed air and hydrogen and oxygen produced by the water electrolysis. Such a process makes the energy storage more flexible, in particular, when applied to RES-based power-generating plants whose generation of power may considerably vary during the course of a day, and also reduces the specific cost of the system by decreasing the required volume of the reservoir. This will allow construction of such systems in any areas independent of the local topography in contrast to the compressed-air energy storage gas-turbine plants, which require large-sized underground reservoirs. It should be noted that, during the energy recovery, the air that arrives from the reservoir is heated by combustion of hydrogen in oxygen, which results in the gas-turbine exhaust gases practically free of substances hazardous to the health and the environment. The results of analysis of a hydrogen–air energy storage gas-turbine system are presented. Its layout and the principle of its operation are described and the basic parameters are computed. The units of the system are analyzed and their costs are assessed; the recovery factor is estimated at more than 60%. According to the obtained results, almost all main components of the hydrogen–air energy storage gas-turbine system are well known at present; therefore, no considerable R&D costs are required. A new component of the system is the H2–O2 combustion chamber; a difficulty in manufacturing it is the necessity of ensuring the combustion of hydrogen in oxygen as complete as possible and preventing formation of nitric oxides. © 2016, Pleiades Publishing, Inc.
60.
Dunikov, D. O.
Russia's view on development of novel and renewable energy sources, including hydrogen energy Journal Article
In: International Journal of Hydrogen Energy, vol. 40, no. 4, pp. 2062-2063, 2015, (cited By 4).
@article{Dunikov20152062,
title = {Russia's view on development of novel and renewable energy sources, including hydrogen energy},
author = {D. O. Dunikov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84920608792&doi=10.1016%2fj.ijhydene.2014.12.010&partnerID=40&md5=5ff678d1bab8d3195f172a64671e69fe},
doi = {10.1016/j.ijhydene.2014.12.010},
year = {2015},
date = {2015-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {40},
number = {4},
pages = {2062-2063},
note = {cited By 4},
keywords = {},
pubstate = {published},
tppubtype = {article}
}