Optimization of ground coupled heating and cooling supply systems in office buildings - reversible heat pump and free cooling

The use of near-surface geothermal energy and the potentials of the ground as a seasonal heat storage help to conserve fossil fuels. To ensure this in the future, further complex researches in this field are required. Special focus should be given on the interaction between heat extraction and heat injection. Moreover an investigation of the integration into the overall energy concept in building as well as the implementation of hydraulic and control technologies regard to the local conditions are indispensable for optimal operation.