Vertical Tube Of Tfe / Nmp As Part Of The Membranous Condensation Heat And Mass Transfer Process Of Numerical Simulation Study

In this paper, a physical model- and a mathematic model describing the simultaneous heat and mass transfer in a partial film with binary(TFE/NMP) vapor condensation had been set up on the basis of detailed analyses of the features of condensation process . To solve the mathematic equations , the method based on condensation degree was used. The distributions of temperature, concentration and mass flux on the film surface; of temperature and concentration in the vapor ; of heat transfer coefficient in the vapor and in the liquid were obtained by applying the model in the flow field. The effects of the flow rate, the inlet temperature , the inlet concentration and the system pressure, the temperature of cooling wall and the radius on the features of condensation process with binary(TFE/NMP) vapor were gained. Some related conclusions had been drawn from these calculated data disposed.These theoretical conclusions summarized by the author can provide some referable guides to the reasonable applications of the vertical tube, also thoughtfulness and method could be made use of during studies on the process of multi-component vapor partial film condensation.