A time and wavelength dependent heat and mass transfer model

This work presents a representation of the heat and mass processes dependent on wavelength spectrum which acts in a radiative cavity filled with a fluid mixture and interfaced with a porous medium. The formulation mainly aims to account for the wavelength dependent response of the transparent solid material and all involving constituents in order to improve the simulation of their radiation interaction. The model is based on a set of governing equations of mass, momentums and energy balance approximated by a finite-difference scheme and some empirical relations. The model is validated against data measured in a field experimentation of a greenhouse. The reasonable agreement between numerical and experimental results, in term of temperature and water mass content of fluid and porous medium, demonstrate the effectiveness of the proposed numerical model.