Full Content is available to subscribers

Subscribe/Learn More  >

Heat Transfer and Pressure Drop for Condensation of Refrigerant R410A at Near-Critical Pressures

[+] Author Affiliations
Biswajit Mitra, Srinivas Garimella

Georgia Institute of Technology, Atlanta, GA

Paper No. IMECE2003-41807, pp. 87-97; 11 pages
  • ASME 2003 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Volume 4
  • Washington, DC, USA, November 15–21, 2003
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-3718-1 | eISBN: 0-7918-4663-6, 0-7918-4664-4, 0-7918-4665-2
  • Copyright © 2003 by ASME


This paper presents the results of an experimental study of heat transfer and pressure drop during condensation of refrigerant R410A inside a horizontal 9.4 mm I.D. tube. The experiments were conducted at nominal pressures of 80% and 90% of the critical pressure of R410A. A novel technique that addresses the conflicting requirements imposed by the need for accurate measurement of low heat transfer rates for the small quality increments, and delineation of the tube-side heat transfer coefficient from the overall resistance, was used. Local heat transfer coefficients and pressure drops were measured for the mass flux range 200 < G < 800 kg/m2 -s in small quality increments over the entire vapor-liquid region, spanning several different two-phase flow regimes. These data were compared with the heat transfer and pressure drop data obtained under similar conditions for R404A by Jiang and Garimella [1]. The data were also compared with available correlations for condensation heat transfer according to the applicable flow regime to assess the validity of these models for refrigerant blend condensation at near-critical pressures. Possible explanations for deviations between the data and the models in the literature are also provided.

Copyright © 2003 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In