Abstract This study aims to determine the cooling efficiency of newly constructed buildings. The factors affecting the values of the thermal conductivity coefficient and the total heat transfer coefficient through the walls of structural buildings will also be studied, as they are standard for the amount of heat transferred through the walls and thus indicate the amount of electrical energy consumed as a result of the cooling process. In addition, we measure energy consumption for cooling purposes after building a special test chamber for this purpose and compare the results with theoretical calculations. It was found that the combined use of thermal insulators with traditional walls reduced the total thermal energy transmitted through the wall by 50%. The ratio between actual and calculated energy consumption for multi-layer walls with and without thermal insulation ranged from 73% to 78%. After analyzing the Ut values of three-, four- and five-layer buildings with and without insulation, it was concluded that a three-layer wall with insulation is optimal for energy efficiency and cost savings.
Mahmoud Fadhel Idan (Tue,) studied this question.