The Effect of Window Shape on the Amount of Radiation Received and Cooling Load a Residential Building in Ahvaz, Iran

Abstract

This article includes a study of a residential building in Ahvaz that uses computer simulation to investigate the effect of window shape on the amount of radiation received and the cooling load of the building. The results have shown that in hot and arid climates, cooling equipment has the largest share of energy consumption in a residential building. In this respect, windows impose significant heat on interior spaces due to direct contact with solar radiation, making them the main factor of cooling load in the building. The results show that the square-shaped window has poor performance compared to the horizontal and vertical windows on the north and south facades. In this regard, the horizontal-shaped and vertical-shaped windows, respectively, on the south and north facades, have transmitted 59.86 kWh and 29.19 kWh less radiation compared to the square-shaped window to space during one year. This amount is equal to 4,870 kWh in the whole building. Also, in the cooling load analysis, it was found that using the optimal window mode of 11,290 kWh reduces the cooling load of the building in one year. This equates to a 10% reduction in energy consumption (18,540 kWh) from the operation of the coolers.