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Technology of Large Heat Pumps

Schematic representation of a large heat pump with the main components: compressor, evaporator, condenser, and expansion valve.

The selection of the appropriate large heat pump strongly depends on the local conditions. These influence important technical features such as the refrigerant, the compressor technology as well as the design and configuration of the heat pump.

Schematic representation of a large-scale heat pump, © Fraunhofer IEG 2024

On the following subpages, the crucial aspects of the technology of large heat pumps are explained in detail:

Basics of large-scale heat pumps: The basic functionalities and physical principles of large heat pumps are presented here.

Refrigerants: The choice of the right refrigerant is crucial for the efficiency and environmental compatibility of the system. Different refrigerants are suitable depending on the temperature range of the heat source and sink.

Compressor technology: The compressor plays a central role in the heat pump. Different compressor technologies influence the performance and operating efficiency depending on the application.

Circuit configurations: Different configuration options for large heat pumps can enable more efficient operation depending on specific boundary conditions.

Coefficient of Performance (COP): The COP is a measure of the efficiency of the heat pump. A calculation tool is available to estimate the COP for different source and sink temperatures and to economically and ecologically evaluate the specific use of a large heat pump.

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Technology

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  • Market survey
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Hessian Ministry of Economic Affairs, Energy, Transportation, Housing and Rural Areas
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