the room sensible and latent heat loads for an air conditioned space are 25 kW and 5 kW respectively. The room condition is 25C db and 50% RH. The outdoor condition is 40C db and 50% RH. The ventilation requirement is such that the mass flowrate basis 20% of fresh air is introduced and 80% of supply air is recirculated. The by-pass factor of the cooling coil is 0.15. Apparatus dew point temp. = 11.2C. Determine: Supply air flow rate. 2. Outside air sensible heat. 3. Outside air latent heat. 4. Grand total heat. 5. Effective room sensible heat factor.
the room sensible and latent heat loads for an air conditioned space are 25 kW and 5 kW respectively. The room condition is 25C db and 50% RH. The outdoor condition is 40C db and 50% RH. The ventilation requirement is such that the mass flowrate basis 20% of fresh air is introduced and 80% of supply air is recirculated. The by-pass factor of the cooling coil is 0.15. Apparatus dew point temp. = 11.2C. Determine: Supply air flow rate. 2. Outside air sensible heat. 3. Outside air latent heat. 4. Grand total heat. 5. Effective room sensible heat factor.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter7: Forced Convection Inside Tubes And Ducts
Section: Chapter Questions
Problem 7.54P
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Example (3): the room sensible and latent heat loads for an air conditioned space are 25 kW and 5 kW respectively. The room condition is 25C db and 50% RH. The outdoor condition is 40C db and 50% RH. The ventilation requirement is such that the mass flowrate basis 20% of fresh air is introduced and 80% of supply air is recirculated. The by-pass factor of the cooling coil is 0.15. Apparatus dew point temp. = 11.2C. Determine: Supply air flow rate.
2. Outside air sensible heat.
3. Outside air latent heat.
4. Grand total heat.
5. Effective room sensible heat factor.
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