Browse > Article

A Study on Pressure Drop Characteristics of Refrigerants in Horizontal Flow Boiling  

Lim, Tae-Woo (School of Mechanical Engineering, Pukyong National University)
Han, Kyu-Il (School of Mechanical Engineering, Pukyong National University)
Publication Information
Journal of Mechanical Science and Technology / v.17, no.5, 2003 , pp. 758-765 More about this Journal
Abstract
An experimental investigation on the flow pattern and pressure drop was carried out for both an adiabatic and a diabatic two-phase flow in a horizontal tube with pure refrigerants R134a and R123 and their mixtures as test fluids. The observed flow patterns were compared to the flow pattern map of Kattan et al., which predicted well the present data over the entire regions of mass velocity in this study. The measured frictional pressure drop in the adiabatic experiments increased with an increase in vapor quality and mass velocity These data were compared to various correlations proposed in the past for the frictional pressure drop. The Chisholm correlation underpredicted the present data both for pure fluids and their mixtures in the entire mass velocity range of 150 to 600 kg/m$^2$s covered in the measurements, white the Friedel correlation was found to overpredict the present data in the stratified and stratified-wavy flow region, and to underpredict in the annular flow region.
Keywords
Flow Pattern; Mixture; Pressure Drop; Two-Phase Frictional Multiplier;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Barajas, A. M. and Panton, R. L., 1993, The Effects of Contact Angle on Two-Phase Flow in Capillary Tubes, Int. J. Multiphase Flow, Vol. 19, pp.337-346   DOI   ScienceOn
2 Friedel, L., 1979, Improved Friction Pressure Drop Correlations for Horizontal and Vertical Two-Phase Pipe Flow, Presented at the European Two-phsae Flow Group Meeting, Ispra, Italy, Paper E2, June, Vol. 18, pp. 485-492
3 Hosler, E. R., 1968, Flow Patterns in High Pressure Two Phase (Steam-Water) Flow with Heat Addition, AIChE Symp. Ser. Vol. 64, pp.54-66
4 Jung, D. S. and Radermacher, R., 1989, Prediction of Pressure Drop During Horizontal Annular Flow Boiling of Pure and Mixed Refrigerants, Int. J. Heat Mass Transfer, Vol. 32, pp.2435-2446   DOI   ScienceOn
5 Lockhart, R. W. and Martinelli, R. C., 1949, Proposed Correlation of data for Isothermal TwoPhase, Two-Component Flow in Pipes, Chem. Engng. Prog. Vol. 45, pp. 39-48
6 Martinelli, R. C. and Nelson, D. B., 1948, Prediction of Pressure Drop During Forced-Circulation Boiling of Water, Trans. ASME Vol. 70, pp.695-702
7 Chisholm, D., 1973, Pressure Gradients Due to Friction During the Flow of Evaporating Two-Phase Mixtures in Smooth Tubes and Channels, Int. J. Heat Mass Transfer, Vol. 16, pp. 347-358   DOI   ScienceOn
8 Collier, J. G. and Thome, J. R., 1994, Convective Boiling and Condensation, 3rd Edition. Oxford University Press, London
9 Nishiumi, H. and Saito, S., 1977, Correlation of the Binary Interaction Parameter of the Modified Generalized BWR Equation of State, J. Chem. Eng. Japan, Vol. 10, pp. 176-180   DOI   ScienceOn
10 Pierre, B., 1966, Flow Resistance with Boiling Refrigerants, ASHRAE Trans., pp.28-42
11 Premoli, A., Francesco, D. and Prina, A., 1970, An Empirical Correlation for Evaluating Two-Phase Mixture Density Under Adiabatic Conditions, European Two-Phase Flow Group Meeting, Milan
12 Kattan, N., Thome, J. R. and Favrat, D., 1998, Flow Boiling in Horizontal Tubes, Partl, J. Heat Transfer, Vol. 120, pp. 140-147   DOI   ScienceOn
13 Thorn, J. R. S., 1964, Prediction of Pressure Drop During Forced Circulation Boiling of Water, Int. J. Heat Mass Transfer, Vol. 7, pp. 709-724   DOI   ScienceOn
14 Reid, R. C., Prausnitz, J. M. and Sherwood, T. K., 1977, The Properties of Gases and Liquids, 3rd Edn., McGraw-Hill, New York
15 VDI-Warmeatlas, 1993, Heat Transfer to Boiling Saturated Liquids, VDI Heat Atlas, Chapter Hbbl. Dusseldorf, Germany: VDI-Vedag GmbH (in English)
16 Whalley, P. B., 1987, Boiling, Condensation and Gas-Liquid Flow, Oxford University Press, New York