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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.6
- 수록면
- 363 - 371 (9page)
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In this paper, a three-dimensional hydrogen desorption model is developed to precisely study the hydrogen desorption kinetics and resultant heat and mass transport phenomena in metal hydride hydrogen storage vessels. The metal hydride hydrogen desorption model, i.e. governed by the conservation of mass, momentum, and thermal energy is first experimentally validated against the temperature evolution data measured on a cylindrical LaNi<sub>5</sub> metal hydride vessel. The equilibrium pressure used for hydrogen desorption simulations is derived as a function of H/M atomic ratio and temperature based on the experimental data in the literature. The numerical simulation results agree well with experimental data and the 3D desorption model successfully captures key experimental trends during hydrogen desorption process. Both the simulation and experiment display an initial sharp decrease in the temperature mainly caused by relatively slow heat supply rate from the vessel external wall. On the other hand, the effect of heat supply becomes influential at the latter stages, leading to smooth increase in the vessel temperature in both simulation and experiment. This numerical study provides the fundamental understanding of detailed heat and mass transfer phenomena during hydrogen desorption process and further indicates that efficient design of storage vessel and heating system is critical to achieve fast hydrogen discharging performance.
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참고문헌 (7)
참고문헌 신청
남진무 / 2010 / 금속수소화물 수소 저장 용기 내부의 수소흡장에 대한 수치해석적 연구 / 한국수소및신에너지학회논문집 21(4):249~257
H. Dhaou / 2007 / Experimental and numerical study of discharge process of metal-hydrogen tank / Int. J. Hydorgen Energ 32(12):1922~1927
C. A. Chung / 2009 / Thermal-fluid behavior of the hydriding and dehydriding processes in a metal hydride hydrogen storage canister / Int. J. Hydrogen Energ 34:4351~4364
S. Mellouli / 2009 / Numerical study of heat exchanger effects on charge/discharge times of metal-hydrogen storage vessel / Int. J. Hydrogen Energ 34(7):3005~3017
S. Ben Nasrallah / 1997 / Heat and mass transfer models in metal-hydrogen reactor / Int. J. Hydrogen Energ 22(1):67~76
H. Dhaou / 2007 / Experimental and numerical study of discharge process of metal-hydrogen tank / Int. J. Hydorgen Energ 32(12):1922~1927
C. A. Chung / 2009 / Thermal-fluid behavior of the hydriding and dehydriding processes in a metal hydride hydrogen storage canister / Int. J. Hydrogen Energ 34:4351~4364
S. Mellouli / 2009 / Numerical study of heat exchanger effects on charge/discharge times of metal-hydrogen storage vessel / Int. J. Hydrogen Energ 34(7):3005~3017
S. Ben Nasrallah / 1997 / Heat and mass transfer models in metal-hydrogen reactor / Int. J. Hydrogen Energ 22(1):67~76
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