A research building requires 100 percent outdoor ventilation air 24 hours a day. This causes a high latent cooling load relative to the sensible load. The peak cooling load is 100,000 Btu/hr (29.3 kW) with a SHF of 0.5. A coil configuration available has an apparatus dew point temperature of 45 F (7 C) and can cool outdoor air from 85 F (29 C) db, 70 F (21 C) wb, to 51 F (11 C) wb. The space is to be maintained at 73 F (24 C) db and 50% relative humidity (RH). Assume constant air flow and standard sea-level pressure. (a) Layout processes on Chart ia for a system to accommodate the given requirements. (b) That quantity of air must be supplied to handle the peak load? (c) Determine other unknown quantities such as coil load, reheat, etc.
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