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P5.3 Moist air enters a cooling coil at 33°C db-temperature and 24.5°C wb-temperature, and leaves at 15°C db-temperature and 90% relative humidity. The refrigeration capacity of the coil is 28 kW. The

P5.3 Moist air enters a cooling coil at 33°C db-temperature and 24.5°C wb-temperature, and leaves at 15°C db-temperature and 90% relative humidity. The refrigeration capacity of the coil is 28 kW. The

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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P5.3 Moist air enters a cooling coil at 33°C db-temperature and 24.5°C wb-temperature, and leaves at 15°C db-temperature and 90% relative humidity. The refrigeration capacity of the coil is 28 kW. The Psychrometric Processes for Heating and Air Conditioning pressure is constant at 101.3 kPa. The coil is represented using the bypass model. Determine (i) the bypass factor, (ii) the coil surface temperature (apparatus dew-point), (iii) the dry air mass flow rate through the coil, and (iv) the sensible heat ratio (SHR) for the cooling process. [Answers: (i) 0.18, (ii) 11°C, (iii) 0.79 kgs', (iv) 0.52] 213
Transcribed Image Text:P5.3 Moist air enters a cooling coil at 33°C db-temperature and 24.5°C wb-temperature, and leaves at 15°C db-temperature and 90% relative humidity. The refrigeration capacity of the coil is 28 kW. The Psychrometric Processes for Heating and Air Conditioning pressure is constant at 101.3 kPa. The coil is represented using the bypass model. Determine (i) the bypass factor, (ii) the coil surface temperature (apparatus dew-point), (iii) the dry air mass flow rate through the coil, and (iv) the sensible heat ratio (SHR) for the cooling process. [Answers: (i) 0.18, (ii) 11°C, (iii) 0.79 kgs', (iv) 0.52] 213
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