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Fault analysis in a domestic refrigerator: Fan fault, condenser fouling, and area restriction.

Author(s) : PARDO-CELY D., BELMAN-FLORES J. M., HEREDIA-ARICAPA Y., RODRIGUEZ-VALDERRAMA D. A., MORALES-FUENTES A., GALLEGOS-MUÑOZ A.

Type of article: IJR article

Summary

In this work, experimental tests were conducted on a domestic refrigerator to evaluate three faults with three levels: deterioration of the speed of the fan coupled to the condenser; degree of external fouling on the condenser; and area restriction on the rear cover of the refrigerator. The above, to analyze the effect of the type of fault on the performance of the refrigerator. Through a thermal analysis, it was observed that components such as the compressor and condenser presented a more noticeable variation in the thermal behavior of the refrigerant in the different faults. In fact, the fault corresponding to the fan speed was the one that caused the most inadequate performance in the refrigerator, compared to the refrigerator operating under normal conditions. The high level of this fault was reflected in an increase of 14.73 ◦C in the temperature of the refrigerant at the condenser inlet, it even caused an increase in the discharge pressure of 2.1 bar. Finally, this fault increased by 48% in energy consumption as well, which represented a 26% decrease in the coefficient of performance.

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Pages: p. 290-299

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Details

  • Original title: Fault analysis in a domestic refrigerator: Fan fault, condenser fouling, and area restriction.
  • Record ID : 30032006
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 154
  • Publication date: 2023/10
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2022.09.001

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