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A space to be air-conditioned has a sensible heat load of 34.9 hp and a latent heat load of 6.97 hp. 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 volume flow rate of space air in m3/s. The mass flow rate of supply air, ms is 312 kg/min. Take the mass flow rate of supply air, (ms = the sum of air mass flow rate to dissipate the sensible heat, msh, and the air mass flow rate to dissipate the latent heat, mlh). Take cp of dry air = unity.

A space to be air-conditioned has a sensible heat load of 34.9 hp and a latent heat load of 6.97 hp. 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 volume flow rate of space air in m3/s. The mass flow rate of supply air, ms is 312 kg/min. Take the mass flow rate of supply air, (ms = the sum of air mass flow rate to dissipate the sensible heat, msh, and the air mass flow rate to dissipate the latent heat, mlh). Take cp of dry air = unity.

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
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Question 7 A space to be air-conditioned has a sensible heat load of 34.9 hp and a latent heat load of 6.97 hp. 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 volume flow rate of space air in m3/s. The mass flow rate of supply air, ms is 312 kg/min. Take the mass flow rate of supply air, (ms = the sum of air mass flow rate to dissipate the sensible heat, msh, and the air mass flow rate to dissipate the latent heat, mlh). Take cp of dry air = unity. (A) 5.62 (B) 3.62 (C) 4.34 (D) 4.46
Transcribed Image Text:Question 7 A space to be air-conditioned has a sensible heat load of 34.9 hp and a latent heat load of 6.97 hp. 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 volume flow rate of space air in m3/s. The mass flow rate of supply air, ms is 312 kg/min. Take the mass flow rate of supply air, (ms = the sum of air mass flow rate to dissipate the sensible heat, msh, and the air mass flow rate to dissipate the latent heat, mlh). Take cp of dry air = unity. (A) 5.62 (B) 3.62 (C) 4.34 (D) 4.46
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