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Thermophysical properties, heat transfer and pressure drop of HFOs.

Number: pap. 15

Author(s) : CAVALLINI A., BROWN J. S., ZILIO C.

Summary

This paper considers the heat transfer and pressure drop performance potentials of halogentated propene isomers during in-tube condensation and in-tube flow boiling using the penalty factor and total temperature penalization concepts, respectively. In particular, five isomers are considered: R1233xf, R1233zd(E), R1234yf, R1234ze(E), and R1243zf. In addition, to these five pure fluids, the heat transfer and pressure drop performance potentials of five R32/R1234yf blends are considered. The paper also presents thermophysical property estimations for the five pure fluids relative to R134a, R245fa, and R123. The thermophysical properties considered are the ones that influence the heat transfer and pressure drop performance potentials, and include the thermodynamic properties temperature, pressure, density, latent heat of vaporization, and specific heat, and the transport properties thermal conductivity and viscosity. The paper also presents a literature review of relevant articles for condensation and boiling heat transfer and pressure drop of fluorinated propene isomers.

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Pages: 16 p.

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Details

  • Original title: Thermophysical properties, heat transfer and pressure drop of HFOs.
  • Record ID : 30007992
  • Languages: English
  • Source: ASHRAE/NIST Refrigerants Conference: moving towards sustainability.
  • Publication date: 2012/10/29

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