This study employed FLACS software to simulate hydrogen leakage scenarios involving a Toyota Mirai Gen II fuel cell vehicle in underground parking garages
to systematically investigate the impacts of ventilation scheme
vent orientation
and ventilation rate. Results indicate that the combined action of the suspended ceiling and ventilation system completely removes the flammable gas clouds
achieving the highest hydrogen removal efficiency. Upward-exhaust ventilation is more effective than other orientations. At a ventilation rate of 24 air changes per hour (ACH)
the peak equivalent stoichiometric cloud volume is 22.5% lower than that for no ventilation
and the cloud removal time is 43.4% shorter than that at 12 ACH. Further increases in ventilation rate provide limited enhancement in flammable cloud evacuation efficiency.
关键词
Keywords
references
NIRVAN G, HAGHIGHAT F, WANG L, et al.Contaminant transport through the garage: house interface leakage[J]. Building and environment, 2012, 56: 176-183.
GIL-LOPEZ T, SANCHEZ-SANCHEZ A, GIMENEZ-MOLINA C.Energy, environmental and economic analysis of the ventilation system of enclosed parking garages: discrepancies with the current regulations[J]. Applied energy, 2014, 113: 622-630.
WANG H L, WANG Z C, XUE Y, et al.Experimental investigation and numerical modeling for induction fans[J]. Journal of building engineering, 2023, 69: 106201.
LYU H, HU Y Q, SHEN Y H, et al.Numerical study of hydrogen leakage, diffusion and explosion in the parking garage under closed and natural ventilation conditions[J]. International journal of hydrogen energy, 2024, 83: 210-225.
HUANG T, ZHAO M B, BA Q X, et al.Modeling of hydrogen dispersion from hydrogen fuel cell vehicles in an underground parking garage[J]. International journal of hydrogen energy, 2022, 47(1): 686-696.
MO F, LIU B, WANG H R, et al.Study on hydrogen dispersion in confined space with complex air supply and exhaust system[J]. International journal of hydrogen energy, 2022, 47(67): 29131-29147.
DAI J H, YANG S G, YANG Y, et al.Research on the consequences of hydrogen leakage and explosion accidents of fuel cell vehicles in underground parking garages[J]. International journal of hydrogen energy, 2024, 77: 1296-1306.
YANG N N, DENG J, WANG C P, et al.High pressure hydrogen leakage diffusion: research progress[J]. International journal of hydrogen energy, 2024, 50: 1029-1046.
QIAN C H, DING H Y, XIE J H, et al.A review on the transport law and control method of fire smoke from energy storage system in tunnels[J]. Journal of energy storage, 2023, 73: 108929.
CHEN J F, LIU J J, TIAN X L, et al.Study on the effect of obstacles on smoke diffusion and airflow structure in subway stations[J]. Building and environment, 2023, 242: 110553.
TANAKA T, AZUMA T, EVANS J A, et al.Experimental study on hydrogen explosions in a full-scale hydrogen filling station model[J]. International journal of hydrogen energy, 2007, 32(13): 2162-2170.
GONG L, YANG S N, HAN Y F, et al.Experimental investigation on the dispersion characteristics and concentration distribution of unignited low-temperature hydrogen release[J]. Process safety and environmental protection, 2022, 160: 676-682.
NUMERICAL SIMULATION ON THE DISPERSION OF HYDROGEN AND NATRUAL GAS DUE TO HIGH PRESSURED PIPELINE LEAKAGE
SIMULATION OF AUXILIARY SUPPLY COOLING IN HIGH PRESSURE HYDROGEN SUPPLY SYSTEM FOR FUEL CELL VEHICLE
SIMPLIFIED CALCULATION METHOD OF CORRUGATED SOLAR VENTILATION PREHEATING WALL THERMAL EFFICIENCY
RESEARCH ON NUMERICAL SIMULATION OF HYDROGEN EXPLOSION IN COMPARTMENT OF FUEL CELL SHIP
Related Author
张艺凡
叶芳
郭航
陈浩
张惟博
Liu Yanlei~1
Xu Ping~2
Zheng Jinyang~1
Related Institution
Institute of Chemical Machinery and Process Equipment,Zhejiang University
Institute of Applied Mechanics,Zhejiang University
MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Energy and Power Engineering, Beijing University of Technology
School of Building Services Science and Engineering, Xi'an University of Architecture and Technology
State Key Laboratory of Green Building in Western China