Heat pump principle

Heat pump principle
The principle is quite old and simple. As contained in the device name, the heat pump pumps heat from one area to another, using special substances (refrigerants). Thus, it is not in the truest sense an energy conversion, which would be worse than 1:1, but it is a transport of energy with a very favourable ratio of about 3:1 occurs. In other words, if we deliver 1 kWh of energy to move energy via the heat pump, we obtain 3 and more kWh in the form of heat. This ratio depends on the temperature difference between cooled and heated space. Technically, the principle outlet temperature of the heat pump cannot be greater than approx. 60 °C, but if we want to obtain the best ratio (so called coefficient of performance), we must strive to close the imaginary scissors outspread between external and internal environment to a maximum grip.