Estimation of Temperature Characteristic during Rapid Refueling or Discharging Hydrogen at a High Pressure

Abstract

An experiment has been made to measure hydrogen temperature in an actual vessel during charging hydrogen until 35 MPa and 70 MPa at a different charging time and also to measure the temperature in a discharging bank at the same time. The measured temperatures of hydrogen for the vessel and bank are compared with the estimated temperature from the previous model proposed by authors. It reveals that the estimated temperature is in good agreement with the measured one and the effects of inlet enthalpy and thermal capacity of the tank on the temperature increase are made clear.