Fuel Cell Thermal Management Simulation Model

Abstract:

According to the thermal characteristics of fuel cell, the radiation module of fuel cell vehicle is calculated and the simulation is modified with experiment results. Two different models, logarithmic mean temperature difference(LMTD） and ε NTU, are used in the radiation calculation. Both models prove to be suitable for the calculation of thermal management system in the fuel cell vehicles. A comparative study of the two methods shows the errors of LMTD are bigger in low flow rate of coolant, whereas ε NTU is superior to LMTD which is therefore used more widely for its accuracy.