Two phase pressure losses of R134a in microchannel tube headers with large free flow area ratios

Experimental Thermal and Fluid Science

Volumn 28, Issue 2-3, 2004, Pages 123-130

  Coleman, John Wesley ^a   Krause, Paul E ^a  

^a Brazeway Inc   (United States)

Author keywords

Contraction; End cut; Headers; Microchannels; Minor losses; Pressure drop; Two phase flow

Indexed keywords

CORRELATION METHODS; FLOWMETERS; MASS TRANSFER; PRESSURE DROP; PRESSURE TRANSDUCERS; TUBES (COMPONENTS);

REFRIGERANT MASS FLUXES;

FLOW OF FLUIDS;

CONTRACTION; EXPERIMENTAL STUDY; MICROCHANNEL; PRESSURE DROP; TWO-PHASE FLOW;

EID: 0346281425     PISSN: 08941777     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0894-1777(03)00030-X     Document Type: Article

References (26)

1. Alves G.E. Cocurrent liquid-gas flow in a pipe-line contactor Chem. Eng. Prog. 50 1954 449 456
2. Baker O. Simultaneous flow of oil and gas Oil Gas J. 53 1954 185 195
3. Bhatti M.S. Shah R.K. Handbook of Single-Phase Convective Heat Transfer 1987 Wiley-Interscience New York Chapter 4
4. Chisholm D. Pressure gradients due to friction during the flow of evaporating two-phase mixtures in smooth tubes and channels Int. J. Heat Mass Transfer 16 1973 347
5. D. Chisholm, Theoretical aspects of pressure changes of section during steam-water flow, National Engineering Laboratory, Report 418, East Kilbridge, Glasgow, 1969
6. Chisholm D. Two-Phase Flow in Pipeline and Heat Exchangers 1983 Pitman Press Ltd. Bath, England
7. Chun M.-H. Baek J.-S. Park J.-R. An experimental investigation of the effects of the entrance shape of a sudden contraction on single and two-phase pressure drop Int. Comm. Heat Mass Transfer 16 1989 295 303
8. J.W. Coleman, Flow Regime Transitions and Pressure Drop in Refrigerant and Air-Water Mixtures in Small Diameter Tubes, Ph.D. Thesis, The Iowa State University of Science and Technology, 2000
9. Coleman J.W. Garimella S. Characterization of two-phase flow patterns in small diameter round and rectangular tubes Int. J. Heat Mass Transfer 42 15 1999 2869 2881
10. J.G. Collier, Thome, Convective Boiling and Condensation, third ed., Oxford Engineering Science Series 38, New York, 1994
11. Ferguson M.E.G. Spedding P.L. Measurement and prediction of pressure drop in two-phase flow J. Chem. Tech. Biotechnol. 62 1995 262 278
12. Fox R.W. McDonald A.T. Introduction to Fluid Mechanics third ed. 1985 John Wiley and Sons New York pp. 365-371
13. C. Gazley, O.P. Bergelin, A Preliminary Investigation of Two-Phase Flow, The University of Delaware Chemical Engineering Report TPF-1, 1947
14. T.P. Graham, W.E. Dunn, Friction and Heat Transfer Characteristics for Single-Phase Flow in Microchannel Geometries, Air Conditioning and Refrigeration Center Report TR-78, University of Illinois, 1995, pp. 52-67
15. Hewitt G.F. Hall-Taylor N.S. Annular Two Phase Flow 1970 Pergamon Press Oxford
16. Hewitt G.F. Hemisphere Handbook of Heat Exchanger Design 1990 Hemisphere Publications New York
17. Hewitt G.F. Shires G.L. Bott T.R. Process Heat Transfer 1994 CRC Press Boca Raton
18. R. Jenkins, Two-Phase Two-Component Flow of Water and Air, Masters Thesis, University of Delaware, 1947
19. Killion J. Garimella S. Coleman J.W. An experimentally validated model for two-phase pressure drop in the intermittent flow regime for circular microchannels J. Fluids Eng. 124 2002 205 214
20. S.W. Churchill, Friction Factor Equation Spans All Fluid Regimes. Chem. Eng., pp. 91-92
21. Olsson C. Presure Drop Characteristics of Small-Sized Tubes 1994 ASME New York
22. W.T. Payne, V.G. Nino, P.S. Hrnjak, T.A. Newell, Void Fraction and Pressure Drop in Microchannels, Air Conditioning and Refrigeration Center Report TR-178, The University of Illinois, 2000, pp. 37-42
23. Ruffel A.E. Calculation of pressure loss coefficients for pipework contractions NEDR 10 1978 1 2
24. Schmidt J. Friedel L. Two-phase pressure drop across sudden contractions in duct areas Int. J. Multiphase Flow. 23 2 1997 283 299
25. P. Van Carey, Liquid-Vapor Phase Change Phenomena, Taylor & Francis Series in Mechanical Enginerring, Hemisphere Publishing, New York, pp. 432-471
26. R. Huq, An Analytical Two-Phase Flow Void Fraction Prediction Method. AIAA/ASME 5th Joint Thermophysics and Heat Transfer Conf., Paper No. 90-1738