TY - CHAP
T1 - Hydrogen Fueling Performance Analysis of Metal Hydride for a Fuel-Cell-Assisted Bicycle Using GF-08 Cooling System
AU - Hara, Daisuke
AU - Oki, Akihiro
AU - Katayama, Noboru
AU - Dowaki, Kiyoshi
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024/1/1
Y1 - 2024/1/1
N2 - Metal hydride (MH) is an alloy that reversibly reacts with hydrogen gas and charges/discharges hydrogen into/from it. MH has some merits, such as low-pressure hydrogen storage, which can contribute to the abatement of environmental impacts, and high volumetric density, which can enhance the operation time per one charge. However, MH requires a long hydrogen charging time owing to the temperature increase caused by the exothermic reaction in its hydrogen-charging process. To address this problem, MH can be cooled to prevent the temperature increase during hydrogen charging. Thus, in this study, an MH cooling system using natural refrigerant GF-08 (MHG system) was investigated and compared with an MH cooling system using R410A (MHR system) and a conventional lithium-ion-battery-based energy storage system (Li-ion battery (LIB) system) in terms of the equivalent CO2 emission and charging time. It was determined that the CO2 reduction rate of the MHG system was 14.9% (MHR system) and 9.43% (LIB system). Moreover, by focusing on the charging time, it was found that the charging time of the LIB system was 10.3 times longer than those of the MHG and MHR systems. Therefore, MH cooling using GF-08 was proved to be effective at reducing both equivalent CO2 emissions and charging time compared to the MH cooling system using R410A and a lithium ion battery.
AB - Metal hydride (MH) is an alloy that reversibly reacts with hydrogen gas and charges/discharges hydrogen into/from it. MH has some merits, such as low-pressure hydrogen storage, which can contribute to the abatement of environmental impacts, and high volumetric density, which can enhance the operation time per one charge. However, MH requires a long hydrogen charging time owing to the temperature increase caused by the exothermic reaction in its hydrogen-charging process. To address this problem, MH can be cooled to prevent the temperature increase during hydrogen charging. Thus, in this study, an MH cooling system using natural refrigerant GF-08 (MHG system) was investigated and compared with an MH cooling system using R410A (MHR system) and a conventional lithium-ion-battery-based energy storage system (Li-ion battery (LIB) system) in terms of the equivalent CO2 emission and charging time. It was determined that the CO2 reduction rate of the MHG system was 14.9% (MHR system) and 9.43% (LIB system). Moreover, by focusing on the charging time, it was found that the charging time of the LIB system was 10.3 times longer than those of the MHG and MHR systems. Therefore, MH cooling using GF-08 was proved to be effective at reducing both equivalent CO2 emissions and charging time compared to the MH cooling system using R410A and a lithium ion battery.
UR - http://www.scopus.com/inward/record.url?scp=85208858567&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-3897-1_6
DO - 10.1007/978-981-99-3897-1_6
M3 - Chapter
AN - SCOPUS:85208858567
SN - 9789819938964
SP - 75
EP - 89
BT - EcoDesign for Sustainable Products, Services and Social Systems II
PB - Springer Nature
ER -