TY - JOUR
T1 - Numerical simulation of the hydrogen storage with reaction heat recovery using metal hydride in the totalized hydrogen energy utilization system
AU - Maeda, Tetsuhiko
AU - Nishida, Keiichi
AU - Tange, Manabu
AU - Takahashi, Toru
AU - Nakano, Akihiro
AU - Ito, Hiroshi
AU - Hasegawa, Yasuo
AU - Masuda, Masao
AU - Kawakami, Yoshiaki
N1 - Funding Information:
These results were obtained per support from the New Energy and Industrial Technology Development Organization (NEDO) based on a grant from METI.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/8
Y1 - 2011/8
N2 - Numerical simulation of a hydrogen storage tank of a Totalized Hydrogen Energy Utilization System (THEUS) for application to commercial buildings was done to verify the practicality of THEUS. THEUS consists of a fuel cell, water electrolyzer, hydrogen storage tank and their auxiliary machinery. The hydrogen storage tanks with metal hydrides for load leveling have been previously experimentally investigated as an important element of THEUS. A hydrogen storage tank with 50 kg AB5 type metal hydride was assembled to investigate the hydrogen-absorbing/desorbing process, which is exothermic/endothermic process. The goal of this tank is to recover the cold heat of the endothermic process for air conditioning, and thus improve the efficiency of THEUS. To verify the practical effectiveness of this improved system, we developed a numerical simulation code of hydrogen storage tank with metal hydride. The code was validated by comparing its results with experimental results. In this code the specific heat value of the upper and lower flanges of the hydrogen storage tank was adjusted to be equal to the thermal capacity of the entire tank. The simulation results reproduce well the experimental results.
AB - Numerical simulation of a hydrogen storage tank of a Totalized Hydrogen Energy Utilization System (THEUS) for application to commercial buildings was done to verify the practicality of THEUS. THEUS consists of a fuel cell, water electrolyzer, hydrogen storage tank and their auxiliary machinery. The hydrogen storage tanks with metal hydrides for load leveling have been previously experimentally investigated as an important element of THEUS. A hydrogen storage tank with 50 kg AB5 type metal hydride was assembled to investigate the hydrogen-absorbing/desorbing process, which is exothermic/endothermic process. The goal of this tank is to recover the cold heat of the endothermic process for air conditioning, and thus improve the efficiency of THEUS. To verify the practical effectiveness of this improved system, we developed a numerical simulation code of hydrogen storage tank with metal hydride. The code was validated by comparing its results with experimental results. In this code the specific heat value of the upper and lower flanges of the hydrogen storage tank was adjusted to be equal to the thermal capacity of the entire tank. The simulation results reproduce well the experimental results.
KW - Hydrogen energy system
KW - Hydrogen storage
KW - Metal hydride
KW - Reaction heat recovery
KW - Simulation model
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U2 - 10.1016/j.ijhydene.2011.06.024
DO - 10.1016/j.ijhydene.2011.06.024
M3 - Article
AN - SCOPUS:80051582148
SN - 0360-3199
VL - 36
SP - 10845
EP - 10854
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 17
ER -