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Questions and Answers
What is the energy added to a home by the heat pump in one hour?
What is the energy added to a home by the heat pump in one hour?
7.35 kWh
If the heat pump is reversed to act as an air conditioner, what would be its coefficient of performance?
If the heat pump is reversed to act as an air conditioner, what would be its coefficient of performance?
1 / COP = 1 / 4.20 = 0.238
What is the power required to operate the heat pump for 3 hours?
What is the power required to operate the heat pump for 3 hours?
5.25 kWh
If the heat pump operates for 8 hours, how much energy does it add to the home?
If the heat pump operates for 8 hours, how much energy does it add to the home?
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What would be the new power requirement if the coefficient of performance is increased to 5.00?
What would be the new power requirement if the coefficient of performance is increased to 5.00?
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Study Notes
Heat Pump Performance
- The coefficient of performance (COP) of the heat pump is 4.20.
- The heat pump requires a power of 1.75 kW to operate.
Energy Added to a Home
- The energy added to a home in one hour is calculated by multiplying the power by the time: 1.75 kW × 1 hour = 1.75 kWh.
Reversed Operation (Air Conditioner Mode)
- If the heat pump is reversed to act as an air conditioner, its coefficient of performance would be the reciprocal of the original COP: 1/4.20 = 0.238.
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