Heat transfer analysis of high pressure hydrogen tank fillings. (29th June 2022)

• Record Type: Journal Article
• Authors: Couteau, Arthur; Dimopoulos Eggenschwiler, Panayotis; Jenny, Patrick
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 54(2022)
• Page Start: 23060
• Page End: 23069
• Publication Date: 2022-06-29
• Subjects: Hydrogen filling experiments -- Numerical modeling -- Heat transfer -- Heat transfer coefficient; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2022.05.127
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Fast fillings of hydrogen vehicles require proper control of the temperature to ensure the integrity of the storage tanks. This study presents an analysis of heat transfer during filling of a hydrogen tank. A conjugate heat transfer based on energy balance is introduced. The numerical model is validated against fast filling experiments of hydrogen in a Type IV tank by comparing the gas temperature evolution. The impact of filling parameters, such as initial temperature, inlet nozzle diameter and filling time is then assessed. For the considered Type IV tank, the results show that both a higher and lower tank shell thermal conductivity results in lower inner wall peak temperatures. The presented model provides an analytical description of the temperature evolution in the gas and in the tank shell, and is thus a useful tool to explore a broad range of parameters, e.g., to determine new hydrogen filling protocols. Highlights: An analytical model is developed to predict the tank shell temperature distribution. The analytical model is validated against experimental results. The influence of filling parameters on the tank wall peak temperature is assessed. The tank materials heat diffusivity is the critical parameter for fast fillings.