An office area is to be maintained at 25C DBT and 19C WBT. The sensible heat...

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An office area is to be maintained at 25°C DBT and 19°C WBT. The sensible heat load is 100 kW and 60 kg/hr of moisture must be removed. Air is supplied to the lecture theatre at 18°C. Determine (a) the mass flow rate of supply air, (b) the relative humidity, dew point, and wet bulb temperatures of the supply air, (c) the latent heat load, and (d) the sensible heat ratio (SHR). A conference room for seating 150 persons is to be maintained at 22°C DBT and 60% RH. The outdoor conditions are 40°C DBT and 27°C WBT. The various load in the auditorium are as follows: Sensible and latent heat loads per person, 80W and 50W respectively. Lights and fans 15,000 W. Sensible heat gain through glass, walls, ceiling etc., 15,000 W. The air infiltration is 20 m'/min and fresh air supply is 100 m³/min. Determine ERSHL and ERLHL. An office area is to be maintained at 25°C DBT and 19°C WBT. The sensible heat load is 100 kW and 60 kg/hr of moisture must be removed. Air is supplied to the lecture theatre at 18°C. Determine (a) the mass flow rate of supply air, (b) the relative humidity, dew point, and wet bulb temperatures of the supply air, (c) the latent heat load, and (d) the sensible heat ratio (SHR). A conference room for seating 150 persons is to be maintained at 22°C DBT and 60% RH. The outdoor conditions are 40°C DBT and 27°C WBT. The various load in the auditorium are as follows: Sensible and latent heat loads per person, 80W and 50W respectively. Lights and fans 15,000 W. Sensible heat gain through glass, walls, ceiling etc., 15,000 W. The air infiltration is 20 m'/min and fresh air supply is 100 m³/min. Determine ERSHL and ERLHL.

Answer rating: 100% (QA)

Answer a Mass flow rate To determine the mass flow rate we can use the following equation m Qs hs2 hs1 where m is the mass flow rate kgs Qs is the sen... View the full answer