The further roll-out of renewable energy systems requires the availability of efficient and affordable storage technologies. At present, it is very expensive and complex to store power. The direct storage of net energy, e.g. as heat or cold, can be realized more effectively. Heat pump based thermic micro networks can take a key role in the development.

In order to identify possible development potentials exergy-based system evaluations by means of coupled building and systems simulations are carried out. The following sub-topics are examined in doing so: heat provision and supply, the use of exergy-optimized components, optimized active cross-building storage applications, the creation of compatible interfaces between stakeholders and the overall system optimization.

Results

By means of cross-building overall simulations various solutions are developed for the exergetic optimiziation of thermic networks. A core element in the process is the use of a now-temperature storage potential of thermically active building components and geothermal heat exchangers.

To better understand the heat transport processes in this model, simulation models are developed and validated through experiments (ENERGETIKUM see Fig. 1). Based on the validated simulation models two network integration concepts are systematically developed and optimized.

Duration: 07/2014 - 06/2017