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air-conditioned

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Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A space to be air-conditioned has a sensible heat load of 26 kW and a latent heat load of 5.2 kW. The space is to maintained at 24°C DB and 17°C WB. Outside air is at 32°C DB and 24°C WB temperatures. With a re-heater to satisfy the space conditions, the conditioned air will enter the space at 18°C. If 40% of the supply air, is fresh air and the rest is re-circulated, find the reheater capacity in kW. The mass flow rate of supply air, ms is 5.2 kg/s. Take the mass flow rate of supply air, (m, = the sum of air mass flow rate to dissipate the sensible heat, msh, and the air mass flow rate to dissipate the latent heat, min). Take cp of dry air = unity.
Transcribed Image Text:A space to be air-conditioned has a sensible heat load of 26 kW and a latent heat load of 5.2 kW. The space is to maintained at 24°C DB and 17°C WB. Outside air is at 32°C DB and 24°C WB temperatures. With a re-heater to satisfy the space conditions, the conditioned air will enter the space at 18°C. If 40% of the supply air, is fresh air and the rest is re-circulated, find the reheater capacity in kW. The mass flow rate of supply air, ms is 5.2 kg/s. Take the mass flow rate of supply air, (m, = the sum of air mass flow rate to dissipate the sensible heat, msh, and the air mass flow rate to dissipate the latent heat, min). Take cp of dry air = unity.
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