recirculated from the room maintained at 25°C DBT and 50% RH. The bypass factor of cooling coil is 0.15 and apparatus dew point Is
In an air conditioning system 30 emm of fresh out door air is introduced at 43°C DBT and 30% RH. The remaining air is recirculated from the room maintained at 25°C DBT and 50% RH. The bypass factor of cooling coil is 0.15 and apparatus dew point Is 11.8°C, RSH 100 kW and RLH 15 kW. Determine:
(1) Humidity ratios for outdoor and Room conditions.
(2) OASH & OALH
(3) ERSH and ERLH
(iv) Supply air temperature
(v) Supply air volume flow rate using ERSH
(vi) Temperature at inlet to cooling coil by assuming density of niside and outside air sanie
Given that saturation pressures of water at 25°C and 43C are 3.1693 KP and 8.6459 KPa respectively. Show the process on psychrometric chart standard atmospheric pressure=1.01325 bar.
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