Heat Pump Efficiency Calculations
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Questions and Answers

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?

1 / COP = 1 / 4.20 = 0.238

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?

<p>29.4 kWh</p> Signup and view all the answers

What would be the new power requirement if the coefficient of performance is increased to 5.00?

<p>1.40 kW</p> Signup and view all the answers

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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Description

Test your knowledge on calculating energy added to a home by a heat pump and determining the coefficient of performance when it functions as an air conditioner. Solve for energy added and COP in different scenarios.

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