Effect of shading on the performance and productivity of double slope solar still under climatic conditions of Egypt [electronic resource]

Includes bibliographic reference

The present work aims to study the possibility of enhancing and increasing the productivity of fresh water from the double slope solar still by improving the performance of its condenser. Single basin asymmetrical double sloped solar still was employed during this study. The study was carried out on the roof of Agricultural Engineering Department, Suez Canal University. Ismailia Governorate (Latitude and Longitude angles, respectively, are 30.62°N and 32.27°, and mean altitude above the sea level is 20 m). The solar still consists mainly of a rectangular iron basin (1.80 x O.80 m) and 0.10 m deep. The bottom frame was constructed of wood and insulated by 2 cm thick of rock wool. The outer walls of the bottom frame were insulated with 7 cm thick of foam. The condensing zone consists of two inclined surfaces. The first inclined surface (which has the area of 1.46 x 1.05 m2) covered with glass sheet (3 mm thick) to transmit the maximum possible of solar radiation flux incident on it. It was orientated to face the south direction with an inclination angle of 20°. The second inclined surface (which has the area of 1.05 xO.83 m2) covered with the same material and the same thickness. It was orientated to face the north direction with an inclination angle of 30°. Two configurations of experiments were performed Firstly, studying the thermal performance of solar still under local climatic conditions

Summary in Arabic