Evaluation of the Thermal Performance of a Single Slope Solar Still Using Sensible Heat Storage Materials

Document Type : Original Research

Authors

1 Agric. Eng, Agric. Eng Dep., Fac. of Agric., Suez Canal Univ., 41522 Ismailia, Egypt

2 Agricultural Engineering Research, Institute Agricultural Research Center, Egypt

Abstract

Desalination can be used to raise the quality of water with desalination units. To improve productivity and yield of a desalination unit with a single slope can used sensible heat storage medium. At the Faculty of Agriculture, Agricultural Engineering Department, Suez Canal University, Egypt (latitude angle of 30.62ºN and longitude angle of 32.27ºE), four identical units of single-slope desalination units are designed. The unit is composed of basin with a 1 mm galvanized sheet construction with a 1.04 m2 net surface area, 0.1 m depth. The main condensation surface is a 3 mm transparent glass with a 31 ° angle on the horizontal facing south. The four units were fed with brackish water from the Suez Canal. Black granite, concrete stone and gravels were selected as a sensible heat storage material, which can store the largest amount of solar energy at different quantities (10, 15 and 20 kg). The findings of the experiment demonstrated that compared to conventional desalination units, the average daily production the clean freshwater content of desalination units equipped with sensible heat storage materials was higher.

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