Study the Effect of Thermal Insulation Materials on TheBuildingsupon Air Conditioning System

Abstract

Thermal loads have been measured for a sample Hall (1)from Sudan University of Science and Technology, based on mathematical models and HAP software. The measurement was based on comparison when without any thermal insulation material used in the wall and roof, and use one of material from three difference of thermal insulation(10cm thickness) in wall and roof (Extruded polystyrene material, Spray polyurethane material, Air cavity) . The decremental has been calculated wall load and roof load which led to decrease in annual operational cost, and results are shown below: - The first once (without any thermal insulation material), the thermal load was 166.76Kw. - The second once (Extruded polystyrene), the difference in thermal load was 53.9Kw, which led to decrease in annual operational cost with percentage (32.32%) out of total annual operational cost. - The third once (Spray polyurethane), the difference in thermal load was 56Kw, which led to decrease in annual operational cost with percentage (33.58%) out of total annual operational cost. - The fourth once (Air cavity), the difference in thermal load was 28.24 Kw, which led to decrease in annual operational cost with percentage (16.99%) out of total annual operational cost.