Question

Coefficient of Performance (COP) for heat pump is used to calculate

• A. the number of air changes.
• B. the Energy Efficiency Ratio.
• C. the Energy Select Sector index.
• D. the Indoor Air Quality index.

Hint:

COP is a key indicator of system efficiency; higher COP values indicate better energy performance for heating and cooling systems.

Answer 1

The Correct Option is B

The Coefficient of Performance (COP) is a measure of the efficiency of a heat pump, air conditioner, or refrigerator. It is defined as the ratio of useful heating or cooling provided by the device to the amount of energy consumed. The COP is used to calculate the Energy Efficiency Ratio (EER), which is a key measure of the performance of HVAC systems.
Why is COP used to calculate EER?
COP is used in conjunction with the Energy Efficiency Ratio (EER), which indicates how efficiently the system uses energy to produce heating or cooling. The higher the COP, the more efficient the system is. This ratio is crucial for evaluating and comparing the energy efficiency of HVAC systems, particularly in residential and commercial settings.
Why are the other options incorrect?
- (A) the number of air changes: This refers to ventilation and air exchange in a space, not related to COP or energy efficiency.
- (C) the Energy Select Sector index: This is not related to COP or HVAC efficiency, but rather an economic indicator in energy sectors.
- (D) the Indoor Air Quality index: This measures air quality, but it does not directly correlate with COP or energy efficiency.
Thus, the correct answer is Option (B). COP is used to calculate the Energy Efficiency Ratio (EER) for heat pumps and other HVAC systems.