A Kind of New Design Optimization Strategyand its Application in Plate Finned-Tube Heat Exchanger

Abstract

A whole new design optimization strategy for the plate finned-tube heat exchanger (PFTHX) was provided. According to the industrial application of the domestic heat exchanger manufacturers, the tube arrangement, fin number, etc. of a PFTHX with designated coil can be sifted stage by stage with: (1) the confine of size parameters of the coil, tube passes, the flow velocity of the fluids of both sides, (2) the confine of the pressure drop of the fluids of both sides, (3) the margin of heat transfer area, etc. The calculation amount can be reduced significantly and at the same time, all the solutions meeting the thermal indices and discrete design parameters can be obtained.