An office is occupied by 30 persons who each produce 200 Btu/h (58W) of sensible heat and 0.25 lb/h (0.1kg/h) of moisture. The office is to be maintained at 72F (22C) and 50 percent relative humidity. Conditioned air is supplied at 60F (15C) to meet the sensible and latent loads. What is the sensible heat ratio (SHR) to meet the loads

Consider a 1.2 meter high and 2 meter wide glass window whose thickness is 6 mm and thermal conductivity is 0.78 w/m °c. the room temperature is maintained at 24 °c, while the outdoor temperature is -5 °c. the convective heat transfer coefficients on the inner and outer surfaces of the window are 10 w/m2 °c and 25 w/m2 °c respectively. (a) draw the thermal resistance network, etermine the steady rate of heat transfer t e glass window (c) determine the temperature of the inner surface of the window