The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
Both the optical absorption coefficient and bandgap decrease with increasing in film thickness.
光吸收系数以及禁带宽度均随薄膜厚度的增加而下降。
3
The results showed that compared to conventional smooth segment baffle heat exchanger, the plate heat exchanger(PHE) can effectively strengthen the film heat transfer coefficient of the shell side.