Two-phase pressure drop of refrigerants during flow boiling in small channels : an experimental investigation and correlation development.

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Two-phase flow pressure drop measurements were made during a phase-change heat transfer process with three refrigerants (R-134a, R-12, and R-113) at six different pressures ranging from 138 kPa to 856 kPa, and in two sizes of round tubes (2.46 mm and 2.92 mm inside diameters) and one rectangular channel (4.06 x 1.7 mm). State-of-the-art large-tube correlations failed to satisfactorily predict the experimental data. The data were used to develop a new correlation for two-phase pressure drop during flow boiling in small channels. The correlation was then tested against the experimental data for the three refrigerants; the error was {+-}20%.

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19 p.

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Chyu, M.-C.; France, D. M.; Tran, T. N. & Wambsganss, M. W. January 19, 1999.

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Two-phase flow pressure drop measurements were made during a phase-change heat transfer process with three refrigerants (R-134a, R-12, and R-113) at six different pressures ranging from 138 kPa to 856 kPa, and in two sizes of round tubes (2.46 mm and 2.92 mm inside diameters) and one rectangular channel (4.06 x 1.7 mm). State-of-the-art large-tube correlations failed to satisfactorily predict the experimental data. The data were used to develop a new correlation for two-phase pressure drop during flow boiling in small channels. The correlation was then tested against the experimental data for the three refrigerants; the error was {+-}20%.

Physical Description

19 p.

Notes

OSTI as DE00012396

Medium: P; Size: 19 pages

Source

  • Conference on Compact Heat Exchangers and Enhancement Technology for the Process Industries, Banff, Alberta (CA), 07/18/1999--07/23/1999

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  • Report No.: ANL/ET/CP-98230
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 12396
  • Archival Resource Key: ark:/67531/metadc625555

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 19, 1999

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  • June 16, 2015, 7:43 a.m.

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  • April 7, 2017, 4:32 p.m.

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Chyu, M.-C.; France, D. M.; Tran, T. N. & Wambsganss, M. W. Two-phase pressure drop of refrigerants during flow boiling in small channels : an experimental investigation and correlation development., article, January 19, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc625555/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.