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At the 4th Sustainable Thermal Energy Management International Conference in Alkmaar, a poster and a paper titled "Boosting the share of renewable energy by optimized scheduling of a heat pump using thermal mass of the building" was presented by Ajit Toradmal. In this paper, a load management strategy in order to maximize the utilization of the PV electricity by flexibility provided by the thermal energy storage (TES) for domestic hot water (DHW) and thermal capacity of the floor heating system is discussed. A heuristic method optimize the operation of the heat pump to improve onsite PV-electricity consumption along with the building model with a floor heating installation is developed as a part of this work. Based on the measured electricity and heating demands for a single family house, the system consisting of PV-modules, heat pump, TES and a building model is simulated over the period of one year in order to extract the energy balances of the system. Results from this study have shown considerable improvement in the share of onsite PV-consumption and avoidance of the large TES for space heating. The developed tool can be easily implemented for the other buildings whose energy demands are known e.g. in the case study of Rainau.
Title: Boosting the share of renewable energy by optimized scheduling of a heat pump using thermal mass of the building
Authors: Ajit Toradmal, Thomas Kemmler, Prof. Dr. Ing. Bernd Thomas (Reutlingen University)