Underground heat exchangers consist of air-conducting pipes buried in the ground. They are used for pre-heating air during winter time and for pre-cooling during summer. They can often considerably reduce losses associated with ventilation and, if appropriately designed, present an economic extension or alternative to conventional heating and cooling systems. " For the planned New Acropolis Museum in Athens, an underground heat exchanger can reduce the cooling power insummer by about 40 % and the heating power in winter by about 65 %", stated Sebastian Herkel, who is responsible for leading the project. Although a large number of underground heat exchangers have been installed, there is a lack of simple planning tools to provide reliable information and allow the economic and energy potential of this technology to be exploited. On the one hand, underground heat exchangers are simple to install and operate, but make high demands on the design under the economic boundary conditions. The aim of the project is to develop a planning tool, with which the project partners can plan underground heat exchangers reliably and economically.
Funding SchemeEAW - Exploratory awards