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Local heat transfer coefficients of hydrocarbon refrigerant boiling inside a Brazed Plate Heat Exchanger (BPHE).

Number: 0113

Author(s) : LONGO G. A., MANCIN S., RIGHETTI G., ZILIO C.

Summary

This paper presents the local heat transfer coefficients of propane and propylene boiling inside a BPHE. A new test section consisting of two corrugated plates instrumented with 36 T-type thermocouples was designed for measuring the local plate surface temperature, the local heat flux and the local heat transfer coefficient in 9 positions along the refrigerant channel. The experimental tests were carried out at a boiling temperature of 10°C, in the refrigerant mass flux range 5 - 17.5 kg m-2s-1 with an inlet vapour quality ranging from 0.24 to 0.37 and an outlet vapour quality around 1.00. Nucleate boiling seems to be the governing heat transfer regime both in propane and propylene tests. Consolidated correlations for nucleate boiling inside BPHE show a fair agreement with all the experimental data.

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Pages: 11 p.

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Details

  • Original title: Local heat transfer coefficients of hydrocarbon refrigerant boiling inside a Brazed Plate Heat Exchanger (BPHE).
  • Record ID : 30031572
  • Languages: English
  • Subject: Technology
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0113

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