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The Fraunhofer Institute for Solar Energy Systems is researching low-charge R290 heat pumps for a range of residential applications. (Source: Fraunhofer ISE)
May 30, 2023 Europe Heat pumps

German Research Institute Looks into Low-Charge R290 Heat Pump Systems, Especially Indoors, for Multi-Family Housing

The Fraunhofer Institute for Solar Energy Systems aims to develop propane heat pumps to replace existing fossil fuel-based heating systems in a range of residential applications.

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The TABSOLAR panel is made of ultra-high-performance concrete to absorb the heat from the sun’s radiation and surrounding air. (Source: G.tecz Engineering)
May 12, 2023 Europe Heat pumps

German Research Institute Develops Building Façade Heat Source for Heat Pumps

The Fraunhofer Institute’s solar thermal façade panels offer a noiseless and space-saving alternative to the air unit of an air-source heat pump.

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In the search for the best propane heat pump, dozens of combinations of components have been tested by the Fraunhofer Institute for Solar Energy Systems.
November 10, 2022 Europe Heat pumps

Fraunhofer Researchers Say Low-Charge Propane Heat Pump Sets Efficiency Record

The heat pump generated 12.8kW (3.6TR) of heating capacity with only 124g (4.4oz) of R290.

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Germany R290 Heat Pumps
October 27, 2020 Europe Heating & Ventilation

German Project Developing Compact Circuit for R290 Heat Pumps

Preliminary work achieved a 75% reduction in refrigerant charge.

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