Solar Active Houses: Simulation Based Analysis of Building Concepts with High Solar Thermal Fractions
Abstract
Within this contribution a comprehensive simulation study regarding the dynamic thermal behaviour of Solar-Active-Houses is presented. These buildings cover at least 50 % of their space heating and domestic hot water demand by solar thermal energy. To take into account the dynamic interaction between the heat supply system and the building, extensive simulation studies were performed with the software TRNSYS. The simulation studies were focused on the optimization potentials regarding several major issues of Solar- Active-Houses, namely the integration of the hot water store, the solar thermal heat production and the integration and operation of the heat distribution system. The results show, that the identified optimization measures can increase the feasible energy savings and hence contribute to the cost reduction of such building concepts.
Keywords
Solar-active-house, Solar heating, High solar thermal fraction, Building simulation, Trnsys