Heat and mass transfer

In this paper, an attempt has been made to evaluate the internal heat transfer coefficient of single and double slope passive solar stills in summer as well as winter climatic conditions for three different water depths (0.01, 0.02 and 0.03 m) by various thermal models. The experimental validation o

Numerical and experimental analyses were performed for a modified air gap distillation membrane that combines the low conductive heat loss of an air gap membrane for distillation with the reduced mass transfer resistance of a direct contact membrane. Instead of a stagnant film of air separating the

This paper presents the characteristics of a solar desalination system based on the humidification–dehumidification principle. The system which, can be used in an open or closed cycle for air, is a modular one. It has the following independent components: two solar collectors, an evaporator and a co

The rate of distillate depends mainly on operating temperature, shape and material of the condensing cover. Further, it is important to study the behaviour of heat and mass transfer relations as a function of operating temperature, shape and material. For the present study two sizes of semi-cylindri

In order to deepen the understanding of the permeate characteristics of membrane distillation considering heat and mass transfers and concentration polarisation, a fully predictive mathematical model was developed. The first part that is devoted to the natural heat and mass transfer in the rectangul