Efficiencies are defined by two parameters: The Coefficient of Performance (COP) and Energy Efficiency Ratio (EER). The steady state EER is defined as cooling output delivered in British Thermal Units per Hour (Btu/h) divided by the power input in watts. The COP is defined as the heating output divided by the power input in same units.
In case of a heat pump, this parameter is presented in slightly different ways for the heating and cooling modes. For cooling, the efficiency parameter is the Energy Efficiency Ratio (EER):
For heating, the efficiency parameter is the Coefficient of Performance (COP):
The general EER Values for different systems are:
In case of a heat pump, this parameter is presented in slightly different ways for the heating and cooling modes. For cooling, the efficiency parameter is the Energy Efficiency Ratio (EER):
EER = (Total Cooling Capacity in Btu/hr (Watts)) / (Power Input in Watts)
For heating, the efficiency parameter is the Coefficient of Performance (COP):
COP = (Heating Capacity in Btu/hr (Watts)) / (Power input in Btu/hr (Watts))
The general EER Values for different systems are:
| Air source conditioning system: | 9.5 |
| Cooling tower conditioning system: | 10.5 |
| Geothermal system: | 18 |
It should be noted that the EER and COP are dependent on the Entering Water Temperature, Water Flow Rate, Airflow Rate and Entering Air Temperatures. Therefore, there is a need to be specific when comparing EER and COP of different units.
The Environmental Protection Agency of the US has recognized Geothermal Technology (also known as GeoExchange) as the most efficient and environmentally friendly home heating and cooling system available. According to studies by the Environmental Protection Agency, Geothermal systems achieved a 48% increase in efficiency over gas furnaces, a 75% increase in efficiency over oil furnaces, and 40% greater efficiency over air source heat pumps.
The Savings Calculator is an approximation
based on our experience to date and uses Conventional Central Air-conditioning
as the benchmark for comparison. The Savings Calculator should
be used as an indicator only. Geothermal India is able to calculate
specific and accurate savings for each and every project after
in-depth analysis of your proposed installation.
Contact us now to find out how much we can save for you!
Contact us now to find out how much we can save for you!