(a) What is the solar heat gain coefficient (SHGC)? (b) What is the shading coefficient (SC)? (2 marks) (c) A window in an air-conditioned room is of 5 m in area, and its glazing is reflective glass. The outdoor air temperature is 30.0C, the room temperature is at 24.0C, the solar radiation I, is 890.0 W/m, the outdoor air film heat transfer coefficient, ho is 22.7 W/m.K, and the indoor air film heat transfer coefficient, h, is 8.29 W/mK. The properties of the glass are as follows. U-value is 6.07 W/m-K, 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 + N a) I+U (to -ti)] h N h, +h, (5 marks) (5 marks) (10 marks)