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Finned-tube evaporators re-design for new refrigerants, part 1: review of heat transfer and pressure drop correlations

Number: 171

Author(s) : HASSAN A., PRADES-GIL C., NAVARRO-PERIS E., GONZÁLVEZ-MACIÁ J.

Summary

This paper reviews the most commonly used correlations in the literature for heat transfer and pressure drop for finned-tube evaporators. On the refrigerant-side, the paper discusses the latest predictions models based on flow patterns. Also, a comparison between different refrigerants is presented as a proof of the importance of having the different behavior of heat transfer and pressure drop coefficients in mind to perform a correct design of heat exchangers. In a similar trend, modeling of the air-side of evaporators was discussed and a comparison of the most renowned correlations was presented based on the tube outer diameter. This work is the first part of a global vision on the correct dimensioning of finned-tube evaporators. In the second part a methodology for designing and optimizing finned-tube evaporators is presented based on the main conclusions of the current paper.

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Pages: 7

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Details

  • Original title: Finned-tube evaporators re-design for new refrigerants, part 1: review of heat transfer and pressure drop correlations
  • Record ID : 30028064
  • Languages: English
  • Source: X Congreso Ibérico y VIII Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2020.
  • Publication date: 2020/11/11

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