For the solution of the global warming issue, the popularization of the hydrogen fuel cell vehicle has been starting in these several years. The hydrogen gas should be filled to the car fast and safely in hydrogen refuelling stations. However, when the filling gas is pressured into the tank, it is feared that the temperature of the hydrogen gas rises. Then, the authors changed the speed and the pattern of the filling and measured the gas temperature of various parts in the tanks of type 3 and type 4. This paper describes the thermal behavior in hydrogen storage tank on fast filling. As the filling time became shorter, the gas temperature rise after filling increased in comparison with that before filling, and the temperature differences among various points in the gas inside the vessel became smaller. The internal gas temperature of the tank may exceed 85 deg C depending on the ambient temperature. (2) Differences were observed in temperature-rise pattern, depending on the type of tank. The temperature difference between different pressure-rise patterns is small in the type 3 tank, but the temperature rise in the type 4 tank increases with a large pressure-rise rate. The internal gas temperature of the tank differed between temperature-measurement points. In the type 4 tank, in particular, the temperature in the upper area inside the tank was higher than in other parts of the tank, depending on the filling rate. If temperature, internal pressure and capacity of the tank are known when filling starts, it may be possible to shorten the filling time by selecting the optimum filling rate and to predict the maximum temperature reached in the tank.


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    Title :

    Thermal behavior in hydrogen storage tank for fuel cell vehicle on fast filling


    Additional title:

    Thermisches Verhalten von Wasserstoffspeichertanks für das Brennstoffzellenauto bei schneller Befüllung


    Contributors:


    Publication date :

    2006


    Size :

    10 Seiten, 16 Bilder, 1 Tabelle, 2 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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