Quiz-3 In a summer air-conditioning unit, 60% of return air (ta2 = 27°C; 2= 50%) is mixed with 40% of outside air (ta1 =

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Quiz 3 In A Summer Air Conditioning Unit 60 Of Return Air Ta2 27 C 2 50 Is Mixed With 40 Of Outside Air Ta1 1 (56.77 KiB) Viewed 27 times

Quiz-3 In a summer air-conditioning unit, 60% of return air (ta2 = 27°C; 2= 50%) is mixed with 40% of outside air (ta1 = 43°C; twi = 27°C) before entering the cooling coil. The space sensible and latent heat are respectively (Q=20 kW; Q = 5 kW). If the ADP of the coil is 6°C, determine: (a) the By- Pass Factor (BF) of the cooling coil; (b) the dry-bulb and wet-bulb temperatures of state 3; (c) the dry-bulb temperature and relative humidity of the supply air; (d) the fresh air mass flow rate in kg/s; and (e) the refrigeration capacity of the cooling coil. Conditioned space 2 Return air ១ Outside air Supply air 3 td2; 02 BPF Mixing Cooling coil w