3. When an engineer enters his well-isolated office room in the summer, he sees that the temperature is 37 °C. After operating the air conditioner, the temperature of the room becomes 22 °C within 19 minutes. The coefficient of performance of the air conditioning system is 2.5, calculate the electrical power consumed by the system. Assume that the whole mass inside the room is equivalent to 800 kg of air. Take Cy = 0.72 kJ / kg°C, C, = 1.0 kJ / kg°C for air. Win (AC 37 22

3. When an engineer enters his well-isolated office room in the summer, he sees that the temperature is 37 °C. After operating the air conditioner, the temperature of the room becomes 22 °C within 19 minutes. The coefficient of performance of the air conditioning system is 2.5, calculate the electrical power consumed by the system. Assume that the whole mass inside the room is equivalent to 800 kg of air. Take Cy = 0.72 kJ / kg°C, C, = 1.0 kJ / kg°C for air. Win (AC 37 22

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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Concept explainers

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

Question

Thermodynamic Question

3. When an engineer enters his well-isolated office room in the summer, he sees that the temperature is
37 °C. After operating the air conditioner, the temperature of the room becomes 22 °C within 19 minutes.
The coefficient of performance of the air conditioning system is 2.5, calculate the electrical power
consumed by the system. Assume that the whole mass inside the room is equivalent to 800 kg of air. Take
Cy = 0.72 kJ / kg°C, C, = 1.0 kJ / kg°C for air.
Win
(AC
37
22

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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