Experimental study an a low pressure solar still

In this work, a low pressure, single basin double slope Solar Still was fabricated and tested for different depths and with different wick and porous materials. A vacuum pump was used to maintain low pressure inside the still. External condenser was used to condense the vapor with raw water as cooling fluid. The performance of the low pressure still was compared with conventional still. The total production of the still was increased by 88.66% when a light cotton cloth was used as wick material in the basin along with minimum depth of water. © 2013 Allerton Press, Inc.