Effect of window over-hang in Iraqi building on cooling load

Abstract EN

A study is done on an Iraqi building to estimate and show how the use of overhang reduces the cooling load.

The study shows how the effectiveness of overhang is affected by the orientation and the area (height) of the windows.

This study shows that limit width of over hang on south window reduces the cooling load by (9%), and when using the overhang on the east or west window we need a large width over hang to reduce the cooling load by the same percentage.

Also this study shows that using over hang and increasing the area of south windows allow us to receive a wide range of solar radiation in winter and use it in heating and lighting and the cooling load does not increase by the same percentage when using west or east windows.

The results show that the using of over hang in Iraq is important especially for south windows.