A building with dimensions (30.48 x 9.14 x 3.04) m at 32 North latitude, outdoor design temperature 32.2 C, DR is 11.1. TR = 25.5 C. the ceiling consists of 50.8 mm heavy weight and 25.4 mm insulation with suspended ceiling, without mechanical ventilation and dark color. The south wall consists of 203.2 mm heavy weight concrete, 50.5 mm insulation, area (30.4 x 3.04) m. the west wall consists of 101.6 mm low weight concrete block, 25.4 mm insulation, arca (9.14 x 3.04), both walls with medium colot. Calculate cooling load for ceiling and wall in 1200,1400, 1600 hrs. on 21 August. Calculate the cooling load for south window and west window in the times 12:00, 14:00 and 16:00 at 31" North latitude on August, Tout=32 C, DR = 111 C, TR=25.5. the building frame is medium weight. The type of south glass is insulated for heat and contain two layers with thickness 6 mm with air space between them, without internal shading, area of window is 9.28 m and U= 3.46 W/m C. the color of west glass is tinted, thickness 5.5 mm with internal venisia keepers of light color, area- 9.29 m, U-4.6 W/m C. A hair salon shop has a sensible cooling lead of 20 kW and latent cooling load of 6.5 kW. The room conditions are to be maintained at 250C DBT and 50% RH. If 56 m3/min of supply air is furnished, determine the required supply air DBT and WBT. (Hints: V required=space sensible heat/1.22 (Tr - Ts) An air-conditioning system is to be design for a restaurant with the following data: Outside design conditions: 400C DBT, 280C WBT Inside design conditions: 250C DBT, 50% RH Solar heat gain through walls, roofs and floor: 5.87 kW Solar heat gain through glass: 5.52 kW Occupant: 25 Sensible heat gain per person: 58 W, Latent heat gain per person: 58 W Internal lighting load: 15 lamps of 100 W, 10 fluorescent of 80 W Sensible heat gain from other sources: 11.63 kW Rate of Infiltration air: 15 m3/min If 25% fresh air and 75% recirculate air is mixed and passed through the conditioner coil. find: (a) The amount of total air required in m3/min. (b) The apparatus dew point temperature of the coil. (c) The condition of the supply air to the room. (d) The capacity of the conditioning plant. Assume the by pass factor equal to 8.2. Draw the schematic diagram of the system and show the system on psychrometric chart and insert the temperature and enthalpy values at salient points.