Design of Solar Powered Space Heating and Domestic Hot Water System for Libyan Common House

In this paper attempt to explore the potential of using the solar energy for space heating in the common Libyan houses. The heating demand of the common Libyan house with the local material and the weather of Tripoli area is found to be about 2357 kWh yearly at heating set point design temperature 18.3 °C. however, in case of the set point temperature is considered 22 °C, the heating demand is increased to 6409 kWh yearly. The study have shown that, the optimum solar system that covers most of the domestic and space heating demand of the common building is consists of 8 vacuum tubes collectors (DRC10) with total area of 13.92 m2 and storage tank volume of 1000 liters. This system achieves over 85% of the demand.