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R1234ze(Z) and R1233zd(E) vaporisation inside a brazed plate heat exchanger (BPHE).

Number: pap. n. 319

Author(s) : LONGO G., MANCIN S., RIGHETTI G., et al.

Summary

This paper presents the boiling heat transfer coefficients of R1234ze(Z) and R1233zd(E) inside a commercial Brazed Plate Heat Exchanger (BPHE): the effects of heat flux / mass flux, saturation temperature / pressure, outlet conditions and fluid properties are investigated. The boiling heat transfer coefficients are controlled mainly by heat flux / mass flux and evaporator outlet conditions. R1234ze(Z) exhibits boiling heat transfer coefficients higher than those of R1233zd(E). There is a reasonable agreement between the saturated boiling heat transfer coefficients and the calculated values by a model recently proposed by the present authors.

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Pages: 8

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Details

  • Original title: R1234ze(Z) and R1233zd(E) vaporisation inside a brazed plate heat exchanger (BPHE).
  • Record ID : 30025983
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0319

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