Study on heat transfer performance using ceramic membrane to recover moisture and waste heat from flue gas

•Constriction resistance affects heat transfer performance of ceramic membrane.•A higher flue gas flow rate will result in a thinner condensate film.•Under high supercooling, ceramic membranes have a low heat transfer coefficient.•The factors affecting the heat transfer under differ undercooling are different.•The mass transfer process will affect the Nusselt number of ceramic membranes.