Share

IIR document

Experimental investigation on heat transfer and pressure drop characteristics of supercritical CO2 in circular tube.

Number: pap. n. 225

Author(s) : XU X., WU Y., LIU C., et al.

Summary

An experimental investigation on the heat transfer coefficient and the pressure drop characteristics of CO2 during gas cooling process in the horizontal tube is conducted. The experimental data are obtained over a mass flux range of 79.6–358.7 kg/m2.s, inlet pressure range of 7.5–9MPa and mean bulk temperature from 23 to 50°C. The test section is 500 mm long, smooth copper tube with inner diameter of 4.0 mm and outside diameter of 6.0 mm. The effect of mass flux, bulk temperature and inlet pressure on the heat transfer coefficient and pressure drop is investigated. The experimental heat transfer coefficients are also compared with some existing correlations. The predicted results present obvious deviation compared to the experimental results at low mass fluxes. A new heat transfer correlation for the tube is proposed based on the experimental data. The maximum error between the predicted results of the new correlation and the experimental data is 20%.

Available documents

Format PDF

Pages: 8 p.

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Experimental investigation on heat transfer and pressure drop characteristics of supercritical CO2 in circular tube.
  • Record ID : 30015872
  • Languages: English
  • Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Publication date: 2015/08/16
  • DOI: http://dx.doi.org/10.18462/iir.icr.2015.0225

Links


See other articles from the proceedings (657)
See the conference proceedings

Indexing