Performance analysis of a solar-driven humidification dehumidification desalination systemin summertime

This paper investigates a solar-driven humidification dehumidification (HDH) desalination system in summertime with a higher. The mathematical model of the HDH desalination system are established, and the corresponding performance, mainly containing the freshwater production, gained output ratio (GOR)as well as the collecting efficiency of the flat plate solar heat collector is simulated and analyzed. The simulated results show that the characteristics of the HDH desalination system is sensitive to the mass flow rate ratio between the seawater and humid air. It was seen that the maximum value of the freshwater production arrives at m
_w
=60.43kgh
^-1
when the balance condition of the dehumidifier, HCR
_d
=1, is obtained. For the aspect of the gained output ratio (GOR), the corresponding top value is GOR=2.69. It is concluded that the solar-driven HDH desalination has great advantages compared to the conventional solar still. The obtained results provide some significant references for the design and optimization of the HDH desalination system.