Effect of mass transfer on heat transfer of microporous ceramic membranes for water recovery

Abstract

In this work, a theoretical study was carried out to investigate the heat and mass transfer of recycling water vapor from flue gas with using the microporous ceramic membrane. The mathematical model was also built to study the effect of mass transfer on heat transfer in the microporous ceramic membrane with the gas on one side and the liquid on the other side. Results showed that the heat transfer due to mass transfer increased with the increasing mass transfer flux, and gradually became the predominant part of the total heat transfer on the feed side. Inside the membrane, the heat conduction is the main heat transfer. In addition, the heat transfer due to mass transfer could be neglected on the permeate side. The modified heat and mass transfer model for calculating the wall temperatures of the membrane showed good agreement with the experimental results.