When the well-isolated office room is entered in the summer, it is seen that the temperature of the room is 35 °C. After operating the air conditioner, the temperature of the room becomes 22 °C within At minutes. The coefficient of performance of the air conditioning system is 2.5, a) find the internal energy changing in the room and b) calculate the electrical power consumed by the system. Assume that the whole mass inside the room is equivalent to 700 kg of air. Take C = 0.72 kJ / kg°C, C, = 1.0 kJ / kg°C for air. Use the below table for At value. Last one digit of your student number At (minutes) Win 15 1 14 AC 35 °C 13 3 12 22 °C 4 11 5 10 7 8 7 9.

When the well-isolated office room is entered in the summer, it is seen that the temperature of the room is 35 °C. After operating the air conditioner, the temperature of the room becomes 22 °C within At minutes. The coefficient of performance of the air conditioning system is 2.5, a) find the internal energy changing in the room and b) calculate the electrical power consumed by the system. Assume that the whole mass inside the room is equivalent to 700 kg of air. Take C = 0.72 kJ / kg°C, C, = 1.0 kJ / kg°C for air. Use the below table for At value. Last one digit of your student number At (minutes) Win 15 1 14 AC 35 °C 13 3 12 22 °C 4 11 5 10 7 8 7 9.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.62P

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