Q.1 An air conditioning system supplying air to a space with a sensible heat load of 14 kW and alatent heat load of 9 kW has a cooling coil and a bypass path as shown schematically in Fig. The db-temperature of the space is maintained at 26°C. The dry air mass flow rate of supply air is 1.2kg/s.Outdoor ventilation air at 34°C db-temperature and 50% relative humidity is introduced into thesystem with a dry air mass flow rate of 0.26 kg/s. The air leaving the cooling coil is fullysaturated at a db-temperature of 6°C. The pressure is constant at 101.3 kPa. Determinedb-temperature and relative humidity of the supply air to the space,(ii)(i)(ii)(iv)wb-temperature of the space,temperature of the air entering the cooling coil, andrefrigeration capacity of the cooling coil.

Given data , SHF=0.55 WBT=31.5°C t2=DBT=40°C , Total heat load = 140…

Answered: Q.1 An air conditioning system…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

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Author:Kreith, Frank; Manglik, Raj M.

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Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.8P

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