In gas turbine recuperators, the exhaust gases are used to heat the incoming air and Cmin/Cmax is therefore approximately equal to unity. Show that for this casee = NTU/(1 + NTU) for counterflow and e = 1/2 (1 ?? e?? 2NTU) for parallel flow.GIVENGas turbine recuperatorCmin /Cmax ??1

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Hot Auld (mc), = C, Hot Fluld (mc)n = C Cold Fluld (mc)e - Ce Heat Transfer Surface Cald Fluld (mc)e - Ce Heat Transfer Surface