Earth To Air Heat Exchanger Design

Earth tubes also known as earth air heat exchangers eahx in professional circles or as cool tubes in australia or by a variety of other names can be designed many ways.

Earth to air heat exchanger design. The diameter of pipe pipe length and number. As the temperature of the ground below 3m is practically constant it substantially reduces ambient air temperature fluctuations. Many researchers have developed sophisticated equations and. An earth to air heat exchanger draws ventilation supply air through buried ducts or tubes.

It therefore provides space conditioning throughout the year with the. If building air is blown through the heat exchanger for heat recovery ventilation they are called earth tubes also. The design of earth air heat exchanger mainly depends on the heating cooling load requirement of a building to be conditioned. 9 10 11 12 13 14 another setup to cool down or heat up an edification ambient using the soil depth as sink heat source is the earth air heat exchanger.

The earth air heat exchanger eahe is a promising technique which can effectively be used to reduce the heating cooling load of a building by preheating the air in winter and vice versa in summer. This method consists of buried. They use the earth s near constant subterranean temperature to warm or cool air or other fluids for residential agricultural or industrial uses. A ground coupled heat exchanger is an underground heat exchanger that can capture heat from and or dissipate heat to the ground.

After calculation of heating cooling load the design of the earth air heat exchanger only depends on the geometrical constraints and cost analysis.