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Experimental and numerical research on condenser performance for R22 and R407C refrigerants.

Author(s) : LEE J. H., BAE S. W., BANG K. H., et al.

Type of article: Article, IJR article

Summary

An experimental study of a fin and tube condenser was performed using two different configurations of condenser paths (U and Z type) and two kinds of refrigerants (R22 and R407C) as working fluids. An integral test facility was constructed to evaluate the heat transfer capacity of the air and refrigerant sides of the condenser. An uncertainty study was also performed. A numerical code was developed, using a section-by-section analysis scheme in which mal-distribution on the air side and temperature gliding on the refrigerant side could be considered along the tube-length direction. Different condenser capacities were obtained from both the experimental and numerical results, depending on the paths and refrigerants used. R22 performed better than R407C for the Z-type path configuration, but no significant difference was found between results using either refrigerant in the U-type path configuration. On average, the numerical results obtained with R22 were 10.1% greater than experimental data; using R407C, results were 10.7% less than experiment data. The numerical code can be used as a design tool to develop better condenser paths.

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Pages: 372-382

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Details

  • Original title: Experimental and numerical research on condenser performance for R22 and R407C refrigerants.
  • Record ID : 2003-0138
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 25 - n. 3
  • Publication date: 2002/05

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