Iran Nezam Mechanical Design Exam

Practice session

A south-facing external window with clear double glazing in Shiraz has an area of 15 m² and a Solar Heat Gain Coefficient (SHGC) of 0.40. At the design peak cooling hour in July, the incident solar radiation on the south facade is 650 W/m². Neglecting internal shading, what is the instantaneous solar radiation heat gain transmitted through this window?

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