Performance evaluation of a salinity-gradient solar pond model under Egyptian solar radiation conditions [electronic resource].

Includes references.

A salinity gradient solar pond (SGSP), termed in this work "solar pond", is a simple and effective way of capturing and storing solar energy. This paper presents the results of temperature developed in the inner zones of a salinity gradient solar pond model (SGSPM) under Egyptian solar radiation climate conditions during 2010. An insulated solar pond model with a surface area of 1.5 m x 1.5 m and a depth of 1.44 m was constructed at Faculty of Agriculture, Zagazig University, Sharkia Governorate, Egypt (Latitude 30° 35/N, Longitude 31° 3l/E). SGSPM filled with prepared different concentrations of sodium chloride salt in water of densities to form salty water zones (upper convective zone, UCZ, the non-convective zone, NCZ, and the lower convective zone, LCZ, with thickness of 0.1, 0.6 and 0.74 m, respectively). The salinity difference between UCZ and LCZ was 6% for 1st experiment, 10% for 2nd experiment and 15 % for 3rd experiment. Twelve temperature sensors (thermocouples type "T") were distributed vertically at different locations along the centered inner zones of the pond to measure temperature variations during day times.

Summary in Arabic.

1