Calculating COP of a Heat Pump in an Experiment

[stonedog]

Homework Statement

I am trying to work out the Cop of a heat pump in an experiment, I recorded the temperatures before and after the Condenser, but am unsure of how to calculate the work input to the condenser

Homework Equations

cop= heat gained at the condenser/ work input to the condenser

The Attempt at a Solution

For example at a mass flow rate of 5 m/s , the gain in temperature was 31.5 degrees,
THE electricity meter read 152.15 kwh and it took 54.64 seconds for a revolution , can anyone help me I am totally lost

 

[mark726]

!

Hello,

Calculating the work input to the condenser can be done by using the formula:

Work = Power x Time

In this case, the power can be calculated by dividing the energy (152.15 kwh) by the time (54.64 seconds). This will give you the power in kilowatts (kW).

Once you have the power, you can then use the formula for COP to calculate the heat gained at the condenser. Remember that the heat gained is the difference in temperature multiplied by the mass flow rate.

Once you have both the heat gained and the work input, you can then plug them into the COP formula to get your final result.

I hope this helps. Let me know if you have any further questions. Good luck with your experiment!