Abstract
This paper report the results of an experiment on a handmade solar boiler focusing on the effect of thermal insulations for better heat conservation and better efficiency of the device by using a concave downward dish covered by aluminum sheets, the dish used to reflect the solar radiation to the water tank. The boiler body is a box mad of polystyrene foam boards with length, width and height of 45cm, 43cm and 28.5cm respectively. The purpose of this research was to reach the 60⁰C water temperature, but handmade boiler reached a temperature about 10⁰c more than the target.
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