CO2 refrigerant in large heat pumps: transcritical operation leads to superior performance.

Type of article: Article

Summary

CO2 has been described as a near ideal refrigerant in every respect, provided that a suitable thermodynamic process can be designed to provide a competitively low power consumption. Such a process has been proposed for use in large heat pumps, such as for district heating systems, where the output has to be supplied to a gliding temperature sink. CO2 also lends itself to the effective recovery of expansion work. Altogether it is well possible to improve the efficiency and COP of district heating systems by at least 20-25% over conventional technology.

Details

Original title: CO2 refrigerant in large heat pumps: transcritical operation leads to superior performance.
Record ID : 1995-0505
Languages: English
Source: IEA HPC Newsl. - vol. 12 - n. 1
Publication date: 1994/03
Document available for consultation in the library of the IIR headquarters only.

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Indexing

Themes: Heat pumps techniques;
CO2
Keywords: High capacity; Design; Heat pump; Refrigerant; CO2