What is COP and EER?

COP – the ratio that measures the energy efficiency of the HEATING performance. EER – the ratio that measure the energy efficiency of the COOLING performance. Both ratios are determined by the amount of heating and cooling generated by the air conditioning compared with the 1kW of electricity it consumes.

What is COP rating?

Coefficient of performance (COP) — This rating indicates a system’s heating efficiency. The higher the COP, the more efficiently the system heats. The rating is a ratio of heat produced (in Btu per hour) over electrical energy input. Energy efficiency ratio (EER) — This number indicates a system’s cooling efficiency.

What does COP mean in HVAC?

Coefficient Of Performance
COP Quick Brief

Rating Meaning Description
COP Coefficient Of Performance Energy Efficiency

Can COP of heat pump be less than 1?

In case of heat pumps, the COP is always greater than 1 in accordance with second law of thermodynamics. Coefficient Of Performance (COP) is the ratio of “Coldness” produced to the “Heat” or ” Work” supplied.

How do you define EER?

The Energy Efficiency Ratio (EER) of an HVAC cooling device is the ratio of output cooling energy (in BTU) to input electrical energy (in watts) at a given operating point. EER is normally calculated with a 95 °F outside temperature and an inside (return air) temperature of 80 °F and 50% relative humidity.

What is EER vs seer?

EER rating is the calculation of the energy efficiency of an ac unit at one temperature, whereas, SEER is the measurement of the energy efficiency of an air conditioner of an entire season at different outside temperatures.

What is COP in shipping?

Certificate of Proficiency (COP) refers to a certificate issued to a seafarer by the MARINA, attesting to the compliance with the relevant requirements of training, competencies and seagoing service prescribed in the Convention.

How is EER calculated?

What Is EER? EER stands for Energy Efficiency Ratio. The EER rating for an air conditioner is calculated by dividing the BTU (British Thermal Units) rating by the wattage. For example, a 12,000-BTU air conditioner that uses 1,200 watts has an EER rating of 10 (12,000/1,200 = 10).

What is COP for chiller?

Calculating the efficiency of a chiller is fairly simple. It is measured in “COP” which stands for Coefficient Of Performance. The Coefficient of performance is just a ratio of the refrigeration effect produced by the chiller against the amount of electrical energy that went into the machine to produce this.

What is COP of refrigerator?

The coefficient of performance, COP, of a refrigerator is defined as the heat removed from the cold reservoir Qcold (i.e., inside a refrigerator) divided by the work W done to remove the heat (i.e., the work done by the compressor).

What is the COP formula?

COP is defined as the relationship between the power (kW) that is drawn out of the heat pump as cooling or heat, and the power (kW) that is supplied to the compressor. For example: A given heat pump used for air cooling has a COP = 2.

Can cops be multiple?

The COP usually exceeds 1, especially in heat pumps, because, instead of just converting work to heat (which, if 100% efficient, would be a COP of 1), it pumps additional heat from a heat source to where the heat is required. Most air conditioners have COP of 2.3 to 3.5.