Chapter 6 LO7 COP Flashcards
1
Q
Energy equation
A
Ein = Eout
Qc + W = QH
2
Q
COP equation
A
COP = Qh / W
3
Q
What is Qc?
A
Thermal energy entering the system from the cold end in J
4
Q
What is W?
A
The electrical energy supplied to the heat pump in J
5
Q
What is QH?
A
Thermal energy leaving the heat pump system at the hot end in J
6
Q
A domestic heat pump has a coefficient of performance of 3.5. Explain what is meant by COP
A
A coefficient of performance is a measure of the efficiency of a heat pump. The ratio of the the energy output from the pump(eout) to the amount of energy required to operate the pump (ein)
