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An idealized model of reversed-cycle hot-gas defrosting. 2. Experimental analysis and validation.

Author(s) : KRAKOW K. I., LIN S., YAN L.

Summary

Reversed-cycle hot-gas defrosting was investigated experimentally to develop and validate an idealized analytical model. A comparison of experimental and simulated results indicates that the idealized model is suitable for the simulation of the performance characteristics of defrosting cycles. The model provides a means of quantitative analysis. The simulated results are more significant for relative comparisons than for the calculation of absolute values. The model should be of assistance in the sizing of throttling valves and receivers. The simulated results indicate that coil efficiencies and system performance coefficients on an order of magnitude of 0.5 and 2, respectively, may be expected for hot-gas defrosting.

Details

  • Original title: An idealized model of reversed-cycle hot-gas defrosting. 2. Experimental analysis and validation.
  • Record ID : 1994-3489
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1993
  • Document available for consultation in the library of the IIR headquarters only.

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