Humidification Dehumidification Desalination Using Solar Collectors

Abstract

The performance of a solar powered humidification-dehumidification system is studied theoretically for various constant parameters such as water flow rate, air flow rate, and cooling water temperature of dehumidifier etc. and varying solar intensity under climatological conditions of Surathkal, India. The primary components of the system are parabolic trough solar water heater, solar air heater, a humidifier, a dehumidifier and a storage tank. The mathematical model is developed by means of MATLAB software and governing equations are numerically solved using 4th order Runge-Kutta method. Daily and seasonal clean water productions are calculated for the system. Water is heated by using parabolic trough air heater whereas air is heated by solar air heater. The system used in this work is based on the idea of closed air and open water cycles. � Published under licence by IOP Publishing Ltd.