The temperature of air before it enters the heating section, The amount of heat removed in the cooling section in kJ/kg of dry air, The amount of heat transferred in the heating section in kJ/kg of dry air,

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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An air-conditioning system is to take in air at 1 atm, 32°C and 70% relative humidity
and deliver it at 22°C and 45 % relative humidity. The air flows first over the cooling
coils, where it is cooled and dehumidified, and then over a heating coils, where it is
heated to the desired temperature. Assuming that the condensate is removed from
the cooling section at 10°C. Determine:
(a) The temperature of air before it enters the heating section,
(b) The amount of heat removed in the cooling section in kJ/kg of dry air,
(c) The amount of heat transferred in the heating section in kJ/kg of dry air,
(d) The amount of water removed in kg/kg of dry air,
(e) Show the process on the Psychrometric chart and draw a schematic of the
duct.
Transcribed Image Text:An air-conditioning system is to take in air at 1 atm, 32°C and 70% relative humidity and deliver it at 22°C and 45 % relative humidity. The air flows first over the cooling coils, where it is cooled and dehumidified, and then over a heating coils, where it is heated to the desired temperature. Assuming that the condensate is removed from the cooling section at 10°C. Determine: (a) The temperature of air before it enters the heating section, (b) The amount of heat removed in the cooling section in kJ/kg of dry air, (c) The amount of heat transferred in the heating section in kJ/kg of dry air, (d) The amount of water removed in kg/kg of dry air, (e) Show the process on the Psychrometric chart and draw a schematic of the duct.
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