PHOTOVOLTAIC HEAT PUMP SYSTEM FOR RENOVATED BUILDINGS – MEASURES FOR INCREASED EFFICIENCY

Andreas Heinz*, Christian Erich Gaber, Robert Haberl, Michel Haller, Joachim Kalkgruber, Rüdiger Schober

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

In this paper we describe the development and analysis of a hybrid heating system for space heating and domestic hot water that is designed to enable an energy-efficient supply of renovated residential buildings with an existing
radiator heating system, requiring high flow temperatures. The system consists of a dedicated air-to-water heat pump using the natural refrigerant R290 (Propane), a thermal energy storage, a photovoltaic system and an
advanced control. The development is done with the objective of a reduction of the system’s electrical energy consumption from the grid by 25 % compared to a defined reference system. Detailed system simulations in TRNSYS were performed to evaluate the effect of different measures concerning the heat pump cycle, the storage tank and the control for a renovated reference single family house. The results show that with a combination of all considered measures a reduction of the grid consumption by 32 % compared to the reference system is possible with a PV size of 10 kWp. With 5 kWp still a reduction of 25 % can be achieved.
Original languageEnglish
Title of host publicationProceedings of the ISES EuroSun 2020 Conference – 13th International Conference on Solar Energy for Buildings and Industry
EditorsAlexandros Charalambides, Wolfgang Streicher, Daniel Mugnier
Place of PublicationFreiburg
PublisherInternational Solar Energy Society
Pages354-365
ISBN (Print)978-3-9820408-2-0
DOIs
Publication statusPublished - 1 Sep 2020
EventEuroSun 2020: 13th International Conference on Solar Energy for Buildings and Industry - Virtuell, Greece
Duration: 1 Sep 20203 Sep 2020
https://pcoconvin.eventsair.com/eurosun20/

Conference

ConferenceEuroSun 2020
Country/TerritoryGreece
CityVirtuell
Period1/09/203/09/20
Internet address

Fields of Expertise

  • Sustainable Systems

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