【Abstract】 From the thermodynamic analysis on the heat transfer processes betweercondensation and forced convection, con clusive remarks are as follows. Fonenergy saving, (1) forced convection process is unprofitable to couple withthe phase-changing process; (2) small temperature drop, △T is more preferable and (3) the vaporization process is more suitable to couple with the condensa-tion process.更多还原