Energy efficient residential and commercial Heat Pumps for renovation buildings with low GWP HFO refrigerants

Heat Pump efficiency optimization using low GWP refrigerant.

Description

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Speaker

south_east

When & Where

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Wed, 09.10.2024, 12:20 – 12:40

place

Hall 8 / 8-516

Details

Format: Lecture

Language: English

Description

Heating and Cooling in buildings make about 40 % of final energy consumption in the EU. Most of this energy is still being provided by fossil fuel heating systems. Heat Pumps are dedicated to being the leading technology for decarbonization and for electrification of heating. An average performing Heat Pump with a SCOP of 3.5 can save around 70 % of CO₂ emissions compared to oil and gas boiler systems. For renovation buildings the requirements for a heating system are more challenging than for new buildings as usually a higher flow temperature is requested for the existing radiator system. Here, the energy efficiency is becoming even more important as it turns directly into energy consumption and indirect emissions during the whole system lifetime.
A thermodynamic model of a Heat Pump system has been developed in Germany by variation of several parameters. This model may help Heat Pump manufacturers designing high performing Heat Pumps for energy efficient operation. The model has been validated for low GWP HFO based refrigerant Opteon™ XL20 (R-454C). This presentation shows the thermodynamic model and the main settings influencing the performance of a Heat Pump system in terms of capacity and energy efficiency.
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