Análisis Comparativo de Sistemas de Refrigeración no Frost con R600a y R134a

Translated title of the contribution: Comparative Analysis of Non-Frost Refrigeration Systems with R600a and R134a

César Alejandro Isaza Roldan, Nelson Gustavo Jara Cobos

Research output: Contribution to journalArticle


This article presents a comparative analysis of three no frost refrigerators of equal characteristics, operating with HC R600a refrigerant and HFC R134a refrigerant. For the analysis, operating temperatures were measured, energy consumption was determined and, finally, the coefficient of performance (COP) was calculated for each case. The three domestic refrigerators used were of the same model and capacity, with the difference that the first one used a 1/4 hp compressor charged with R134a, while the other two refrigerators used 1/4 hp and 1/6 hp compressors charged with R600a. From these dynamics it was determined that the COP of the refrigerator with R600a and 1/4 hp compressor is 2.7 and with the 1/6 hp compressor is 4.8, while with the refrigerant R134a and 1/4 hp compressor is 3. 5; also the maximum temperatures reached in the elements of the refrigeration system loaded with R600a and 1/6 hp compressor were -33.92 ° C at the evaporator inlet, 60.73 ° C at the compressor outlet, 37.53 ° C at the inlet of the compressor and 36.75 ° C at the condenser outlet.
Translated title of the contributionComparative Analysis of Non-Frost Refrigeration Systems with R600a and R134a
Original languageSpanish (Ecuador)
Pages (from-to)1-9
Number of pages9
JournalRevista I+T+C Dirección de Investigación
Issue number1
StatePublished - 30 Apr 2015


  • Energy consumption
  • No frost refrigeration system
  • Refrigerant r134a
  • Refrigerant r600a

CACES Knowledge Areas

  • 727A Industrial and process design


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