Evaluating thermal efficiency of hemispherical solar still (HSS)‎ (circular basin)‎ in Basra City-Iraq

الملخص EN

In this research hemispherical solar still (HSS) has been constructed and their performance has been evaluated under different atmospheric circumstances of Basra City( Iraq) (latitude 30° 33' 56.55"n, longitude 47° 45' 5.86"e).

The hemispherical solar still consists of a basin area of (0.025 m2).

This small measurement has been adopted in the size (0.20 m) for the size of the hemispherical glass cover and the difficulty of obtaining the larger measurement, this measurement is considered to cover a hemispherical as the largest size for the manufacturing in the south oil company in Basra-Iraq.

The maximum experimental efficiency of the experimental still varies from(19% -23% ) for the hemispherical solar still.