Effets généralisés de la charge de frigorigène sur les variables de performance normalisées des conditionneurs d'air et des pompes à chaleur

Translated title of the contribution: Generalized effects of refrigerant charge on normalized performance variables of air conditioners and heat pumps

Mehdi Mehrabi, David P Yuill

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Performance degradation of air conditioners and heat pumps due to faults has been studied in several experiments reported in the literature. Among the faults, refrigerant charge variation is believed to be very common, and has been the focus of experiments by many researchers. In the current paper, using all available results in the literature, the effect of refrigerant charge faults on single-speed air-cooled air-conditioners and heat pumps is summarized. Generalized relationships have been developed to describe the fault effects, and these are provided for equipment operating at ANSI/AHRI 210/240 standard test conditions. Results are presented separately for fixed orifice (FXO) and thermostatic expansion valves (TXV), for both cooling and heating modes. The variation level of the results indicates that for many applications, it is reasonable to use these generalized relationships to estimate the effect of refrigerant charge variation on systems that have not been tested in a laboratory.

Original languageFrench
Pages (from-to)367-384
Number of pages18
JournalInternational Journal of Refrigeration
Volume76
DOIs
StatePublished - Apr 1 2017

Fingerprint

Refrigerants
Pumps
Air
Orifices
Experiments
Cooling
Heating
Degradation
Hot Temperature

Keywords

  • Air conditioner
  • Fault
  • Generalized effect
  • Heat pump
  • Refrigerant charge

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

Cite this

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title = "Effets g{\'e}n{\'e}ralis{\'e}s de la charge de frigorig{\`e}ne sur les variables de performance normalis{\'e}es des conditionneurs d'air et des pompes {\`a} chaleur",
abstract = "Performance degradation of air conditioners and heat pumps due to faults has been studied in several experiments reported in the literature. Among the faults, refrigerant charge variation is believed to be very common, and has been the focus of experiments by many researchers. In the current paper, using all available results in the literature, the effect of refrigerant charge faults on single-speed air-cooled air-conditioners and heat pumps is summarized. Generalized relationships have been developed to describe the fault effects, and these are provided for equipment operating at ANSI/AHRI 210/240 standard test conditions. Results are presented separately for fixed orifice (FXO) and thermostatic expansion valves (TXV), for both cooling and heating modes. The variation level of the results indicates that for many applications, it is reasonable to use these generalized relationships to estimate the effect of refrigerant charge variation on systems that have not been tested in a laboratory.",
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author = "Mehdi Mehrabi and Yuill, {David P}",
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AU - Yuill, David P

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N2 - Performance degradation of air conditioners and heat pumps due to faults has been studied in several experiments reported in the literature. Among the faults, refrigerant charge variation is believed to be very common, and has been the focus of experiments by many researchers. In the current paper, using all available results in the literature, the effect of refrigerant charge faults on single-speed air-cooled air-conditioners and heat pumps is summarized. Generalized relationships have been developed to describe the fault effects, and these are provided for equipment operating at ANSI/AHRI 210/240 standard test conditions. Results are presented separately for fixed orifice (FXO) and thermostatic expansion valves (TXV), for both cooling and heating modes. The variation level of the results indicates that for many applications, it is reasonable to use these generalized relationships to estimate the effect of refrigerant charge variation on systems that have not been tested in a laboratory.

AB - Performance degradation of air conditioners and heat pumps due to faults has been studied in several experiments reported in the literature. Among the faults, refrigerant charge variation is believed to be very common, and has been the focus of experiments by many researchers. In the current paper, using all available results in the literature, the effect of refrigerant charge faults on single-speed air-cooled air-conditioners and heat pumps is summarized. Generalized relationships have been developed to describe the fault effects, and these are provided for equipment operating at ANSI/AHRI 210/240 standard test conditions. Results are presented separately for fixed orifice (FXO) and thermostatic expansion valves (TXV), for both cooling and heating modes. The variation level of the results indicates that for many applications, it is reasonable to use these generalized relationships to estimate the effect of refrigerant charge variation on systems that have not been tested in a laboratory.

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KW - Generalized effect

KW - Heat pump

KW - Refrigerant charge

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