Construction and Experimental Investigation of local cooling to improve the efficiency of solar desalination

Subject Areas : Renewable energy

مهدی آریافر ¹ , Hadi Kargar Sharifabad ²

1 - سمنان
2 - مرکز تحقیقات انرژی و توسعه پایدار، واحد سمنان، دانشگاه آزاد اسلامی، سمنان، ایران

Received: 2017-01-19 Accepted : 2017-01-23 Published : 2017-06-22

Keywords: fresh water, Solar desalination, water cooling,

Abstract :

Due to the favorable properties of wide regions of the world and has developed a shortage of fresh water in dry areas that already face large-scale development has occurred Such as parts of North Africa and the Middle East, to produce fresh water by desalination to need a lot of energy and a lot of research studies for the development of solar desalination is being done by solar energy With the aim of identifying key technical challenges and potential opportunities for solar energy, A variety of technologies for the optimum amount of solar energy as well as various technologies for solar desalination system includes advanced technique for restoring energy is studied we conclude that the development of solar desalination system for cost-effective and energy-efficient in the near future may be grounds for water supply desert regions of the world. The effects of water cooling with two modes: simple desalination (passive) by installing cooling and desalination of water (active) examined and compared in terms of daily production has been tested. Tests in August (August) in geographical coordinates (N:35°34′,E:53°22′) carried on the basis of the results observed maximum production rate freshwater disabled 0.26 (kg / m2) per hour. Moreover, the daily output disable mode of 1.035 (kg / m2.day) daily 1.530 (kg / m2) reached in active mode.