Share

Recommended by the IIR / IIR document

Effect of refrigerant leakages on energy consumption of an electric heat pump for domestic air-conditioning.

Number: 2062

Author(s) : MAURO A. W., NAPOLI G., PELELLA F.

Summary

Refrigerant leakages in stationary air-conditioning and heat pumps represent almost the 50% of the amount of F-gas emissions declared by European Commission. Reducing leakages becomes crucially important because they cause both a high environmental impact and a decline of system performances. Typically, small leakages remain unidentified for a long period of time, causing a considerable long-term performance degradation of the machine. This paper deals with a mechanistic approach to simulate an air-to-air heat pump for domestic air conditioning, in different refrigerant loss rate scenarios, to evaluate the corresponding degradation of its seasonal performances. Results shows an average of 10% improvement of seasonal performances of the machine, with the employment of tools for fault detection and diagnosis (FDD) able to detect a refrigerant leakage through data collected by sensor mounted on the machine. Furthermore a 11% reduction of indirect contribute to global warming impact is achieved for small refrigerant leakages, whereas for larger leakages the direct emissions of CO2 become 65% lower.

Available documents

Format PDF

Pages: 8

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Effect of refrigerant leakages on energy consumption of an electric heat pump for domestic air-conditioning.
  • Record ID : 30028932
  • Languages: English
  • Subject: Technology
  • Source: 6th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
  • Publication date: 2021/09/01
  • DOI: http://dx.doi.org/10.18462/iir.TPTPR.2021.2062
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (48)
See the conference proceedings

Indexing