Simultaneous Heat And Mass Transfer. In order to simplify the drying modelation many researchers have studied the drying description assuming negligible the heat transfer chávez 1995. Simultaneous heat and mass transfer chapter 21 diffusion.
Drying drying involves the removal of water or another liquid from a solid slurry or liquid by vaporization. Simultaneous heat and mass transfer in a wetted heat. Expressions for the effective material properties diffusion coefficient and thermal conductivity are given.
Simultaneous heat and mass transfer in a wetted heat.
Chemical reactions if occurring in the liquid phase also contribute to enthalpy changes. J v s α d ρ d y v 1 y v 1 t t and q d α d r t m m a m v j v where α d is the thermal diffusion ratio for vapour in air. Hot vapor flowing in upward direction looses heat to liquid on each tray and because of this heat transfer there will be mass transfer of key component from liquid to vapor and vice versa heavy component will condense out from vapor and get into liquid due to cooling effect. When both expressions are developed and handled simultaneously the resulting equations show that heat and mass transfer affect each other.