Question

When a man returns to his well-sealed house on a summer day, he finds that the house is at 32°C. He turns on the air conditioner, which cools the entire house to 20°C in 15 min. If the COP of the air- conditioning system is 2.5, determine the power drawn by the air conditioner. Assume the entire mass within the house is equivalent to 800 kg of air for which Cv = 0.72 kJ/kg/°C and Cp= 1.0 kJ/kg/°C. Show the effect of COP on the power drawn by the air conditioner. Also show the effect of change in cooling time (∆t = 12 min, 15 min and 18 min) on COP and power (kW) drawn by the air conditioner.

Answer 1

Answer:

Explanation:

tioner, which cools the entire house to 20°C in 15 min. If the COP of the air- conditioning system is 2.5, determine the power drawn by the air conditioner. Assume the entire mass within the house is equivalent to 800 kg of air for which Cv = 0.72 kJ/kg/°C and Cp= 1.0 kJ/kg/°C. Show the effect of COP on the power drawn by the air conditioner. Also show