Keeping the working principles of an air to water heat pump in mind the decline in temperatures will affect the operating efficiency.
Air to water heat pump cop.
Geothermal heat pump efficiency is traditionally measured using a ratio called coefficient of performance cop.
This type of heat pump works best in moderate climates.
The cop varies according to the external temperature becoming less efficient when the weather is really cold.
In very mild weather the cop of an air.
A geothermal heat pump with an assumed seasonal average cop of 4 0 and a cold climate air to water heat pump with a seasonal average cop of 2 5.
For example if a heat pump has a cop of 5 the pump can produce 5 units of heat for every watt of power used.
How does an air to water heat pump work.
By definition cop is the ratio of how much useful heat or cold an hvac device will produce if we give it certain energy input.
Cop or coefficient of performance is the most basic energy efficiency metric of any heat engine.
Both heat pumps were assumed to supply heat to an energy efficient house in a cold upstate ny climate of 6720 heat degree days.
A compressor a condenser an expansion valve and an evaporator.
A high cop over 1 0 means your heat pump is performing very efficiently and your heating bills will be low.
I recently ran an analysis of two heat pumps.
The efficiency of air source heat pumps is measured by the coefficient of performance cop.
The coefficient of performance cop describes the amount of heat that a heat pump can produce compared to how much energy has been put in at any given time.
The report will show the projected performance capacity cop seasonal average cop cop by hours and by temperature a backup heat analysis and more.
A cop of 3 means the heat pump produces 3 units of heat energy for every 1 unit of electricity it consumes.
A fan passes air over the evaporator the refrigerant absorbs heat from the outside air.
The efficiency of an air to water heat pump is most optimal at 7 c as opposed to dry and cold locations where outside temperatures fall below 20 c.
Typically air to water heat pumps have a cop of around 3 which means they generate three units of heat for each unit of electricity used.
The manufacturer of the chiltrix cx34 air to water heat pump.
The cop of a geothermal heat pump is the ratio of the heating or cooling output to the energy input to run the machine.
It s very useful when comparing heat pumps fridges and air conditioners.
Within temperature ranges of 3 c to 10 c the cop for many machines is fairly stable at 3 3 5.
An air to water heat pumps system consist of four major elements that allow the refrigerant to pass from the liquid state to the gas.