A Comparison of Thermal Performance of Two and Four Tube Pass Designs for Split Flow Shells

Governing equations for heat transfer in a split flow heat exchanger with two tube passes are developed and solved. The expressions for the “temperature efficiency” P and “LMTD temperature correction factor”, F are derived. F and P values for two tube pass and four tube pass are compared over the practical range of values of thermal flow rate ratio R and reduced thermal flux, η (NTU).