Browse Publications Technical Papers 2018-01-1304

Dynamic Simulation Software for Prediction of Hydrogen Temperature and Pressure during Fueling Process 2018-01-1304

In this study, in order to relax the pre-cooling regulations at hydrogen fueling stations, we develop a software algorithm to simulate an actual hydrogen fueling process to Fuel Cell Vehicle (FCV) tanks. The simulation model in the software consists of the same filling equipment found at an actual hydrogen fueling station. Additionally, the same supply conditions (pre-cooling temperature, pressure and mass flow rate) as at a hydrogen fueling station were set to the simulation model. Based on the supply conditions, the software simulates the temperature and pressure of hydrogen in each part of filling equipment. In order to verify the accuracy of the software, we compare the temperature and pressure simulated at each stage of the filling process with experimental data. We show that by using the software it is possible to accurately calculate the hydrogen temperature and pressure at each point during the fueling process. Subsequently, we carry out a sensitive analysis of the filling equipment with large heat capacity, the initial temperature in the FCV tank and the pre-cooling temperature, and then propose an effective step to relax the regulation regarding the pre-cooling temperature.
KeywordsFilling equipment, Hydrogen fueling station, Hydrogen temperature, Hydrogen pressure, Pre-cooling temperature


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