(5 marks) An air conditioning A/C unit is used to cool a class room that contains...
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(5 marks) An air conditioning A/C unit is used to cool a class room that contains 40 students and maintains it at 20°C when the outdoor air temperature is at 32°C. The amount of heat dissipated from each student is assumed to be 360 kJ/h. The room is estimated to gain heat through walls and windows at a rate of 15,000 kJ/h. If the lights of this room release 2 KJ/s and the COP of the A/C unit is 2.5, determine: (a) The cooling load of the class room (b) The electric power required to run this A/C unit. (5 marks) (c) If the price of electricity is $0.5/kWh and the A/C operates 5 hours a day what is the 30 days bill to operate this A/C unit. (5 marks) (d) Assuming this A/C operates in reversible cycle what is its ideal COP. (5 marks) 32 °C 20°C W A/C (5 marks) An air conditioning A/C unit is used to cool a class room that contains 40 students and maintains it at 20°C when the outdoor air temperature is at 32°C. The amount of heat dissipated from each student is assumed to be 360 kJ/h. The room is estimated to gain heat through walls and windows at a rate of 15,000 kJ/h. If the lights of this room release 2 KJ/s and the COP of the A/C unit is 2.5, determine: (a) The cooling load of the class room (b) The electric power required to run this A/C unit. (5 marks) (c) If the price of electricity is $0.5/kWh and the A/C operates 5 hours a day what is the 30 days bill to operate this A/C unit. (5 marks) (d) Assuming this A/C operates in reversible cycle what is its ideal COP. (5 marks) 32 °C 20°C W A/C
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Answer rating: 100% (QA)
To solve for each part of the question we will follow these steps a The cooling load of the classroom The cooling load is the total amount of heat tha... View the full answer
Related Book For
Contemporary Business Mathematics with Canadian Applications
ISBN: 978-0134141084
11th edition
Authors: S. A. Hummelbrunner, Kelly Halliday, Ali R. Hassanlou, K. Suzanne Coombs
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