A Simplified One-Dimensional Heat Transfer Model

The figure also shows the equivalent thermal circuit based on conduction and convection resistances, which are given as follows  

Convection resistance in cathode gas channel, l convc = v—r (1167e) 

A simplified one-dimensional heat transfer model and resistance diagram. 

Based on the one-dimensional steady-state conduction analysis, we can express the heat transfer rates and q as follows  

Additionally, we have the overall energy balance equation given by 

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