An analysis of desalination process with the variation of basin decker type and distance to glass cover collector at angle 25°

The desalination process consists of changing form process and membrane process. This research applied the changing form process of desalination using solar energy. A solar collector is used to measure heat produced and collector efficiency from the desalination process. The angle of glass cover collector is 25o. The collector was made into the decker basin model with two and three levels. As for variations in the distance to glass cover are 10 cm, 10,5 cm, 11 cm, 11,5 cm and 12 cm. The data recorded for 5 consecutive days and was conducted in open space from 09.00 am to 03.00 pm with the interval time every 30 minutes. The result shows that heat energy resulting of 294,46 J/s from three levels basin with the distant to glass cover collector of 12 cm is 294,46 J/s, which is greater than others. While the highest collector efficiency, which is 70,27 %, was found in two levels basin at a distance to glass cover collector of 10 cm. Further more, three levels basin at a distance to glass of 11,5 cm was found to produce more fresh water than others, as many as 53,92 ml.