(a) What is the solar heat gain coefficient (SHGC)? (b) What is the shading coefficient (SC)?...
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(a) What is the solar heat gain coefficient (SHGC)? (b) What is the shading coefficient (SC)? (2 marks) (c) A window in an airconditioned room is of 5 m² in area, and its glazing is reflective glass. The outdoor air temperature is 30.0°C, the room temperature is at 24.0°C, the solar radiation I, is 890.0 W/m², the outdoor air film heat transfer coefficient, ho is 22.7 W/m².K, and the indoor air film heat transfer coefficient, h, is 8.29 W/m²K. The properties of the glass are as follows. Uvalue is 6.07 W/m²K, solar transmittance, t is 0.2, and solar absorptance, a, is 0.60. (i) Calculate the solar heat gain coefficient (SHGC) of the window. (ii) Calculate the shading coefficient (SC) of the window. (iii) Calculate the heat gain of this window. Formula necessary for your calculation (3 marks) q=A [(T + N₁ a) I+U (to ti)] h N₁ h, +h, (5 marks) (5 marks) (10 marks) (a) What is the solar heat gain coefficient (SHGC)? (b) What is the shading coefficient (SC)? (2 marks) (c) A window in an airconditioned room is of 5 m² in area, and its glazing is reflective glass. The outdoor air temperature is 30.0°C, the room temperature is at 24.0°C, the solar radiation I, is 890.0 W/m², the outdoor air film heat transfer coefficient, ho is 22.7 W/m².K, and the indoor air film heat transfer coefficient, h, is 8.29 W/m²K. The properties of the glass are as follows. Uvalue is 6.07 W/m²K, solar transmittance, t is 0.2, and solar absorptance, a, is 0.60. (i) Calculate the solar heat gain coefficient (SHGC) of the window. (ii) Calculate the shading coefficient (SC) of the window. (iii) Calculate the heat gain of this window. Formula necessary for your calculation (3 marks) q=A [(T + N₁ a) I+U (to ti)] h N₁ h, +h, (5 marks) (5 marks) (10 marks)
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SOLUTION a The solar heat gain coefficient SHGC is defined as the ratio of the solar heat gain through a window to the incident solar radiation on the window It is expressed as a fraction and is usual... View the full answer
Related Book For
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar
Posted Date:
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