The Effect of Dividing Surface on Heat Transfer Characteristics of Dropwise Condensation
分割表面对蒸汽滴状冷凝传热特性的影响

The relations of water vapor condensation heat fluxes with surface subcoolings on coated surfaces were determined experimentally,and the experimental results with and without dividing surfaces with the ratio of 1:1 were also compared.It was observed that the heat fluxes of dropwise-filmwise coexisting condensations(DFC) on dividing surfaces were more than the mean fluxes of pure dropwise and filmwise condensations(MDF) on coated and bare surfaces,respectively,and the differences between them increased with increasing the contact angles on the coated surfaces.The phenomenon was explained from the point of view of interfacial energy effect of condensate and solid.