Critical heat flux (CHF) of R-123 in a silicon-based microchannel heat sink was investigated at exit pressures ranging from . Critical heat flux data were obtained over effective heat fluxes ranging from and mass fluxes from . Flow images and high exit qualities suggest that dryout is the leading CHF mechanism. The effect of mass velocity, exit quality, and system pressure were also examined, and a new correlation is presented to represent the effect of these parameters.
Issue Section:
Evaporation, Boiling, and Condensation
1.
Lee
, C. H.
, and Mudawar
, I.
, 1988, “A Mechanistic Critical Heat Flux Model for Subcooled Flow Boiling Based on Local Bulk Flow Conditions
,” Int. J. Multiphase Flow
0301-9322, 14
, pp. 711
–728
.2.
Weisman
, J.
, 1992, “The Current Status of Theoretically Based Approaches to the Prediction of the Critical Heat Flux in Flow Boiling
,” Nucl. Technol.
0029-5450, 99
, pp. 1
–21
.3.
Katto
, Y.
, 1994, “Critical Heat Flux
,” Int. J. Multiphase Flow
0301-9322, 20
, pp. 563
–590
.4.
Vandervort
, C. L.
, Bergles
, A. E.
, and Jensen
, M. K.
, 1994, “An Experimental Study of Critical Heat Flux in Very High Heat Flux Subcooled Boiling
,” Int. J. Heat Mass Transfer
0017-9310, 37
(Supp), pp. 161
–173
.5.
Celata
, G. P.
, Cumo
, M.
, and Mariani
, A.
, 1994, “Assessment of Correlations and Models for the Prediction of CHF in Subcooled Flow Boiling
,” Int. J. Heat Mass Transfer
0017-9310, 37
(2
), pp. 237
–255
.6.
Bowers
, M. B.
, and Mudawar
, I.
, 1994, “High Flux Boiling in Low Flow Rate, Low Pressure Drop Mini-Channel and Micro-Channel Heat Sinks
,” Int. J. Heat Mass Transfer
0017-9310, 37
(2
), pp. 321
–334
.7.
Ammerman
, C. N.
, and You
, W. M.
, 2001, “Enhancing Small-Channel Convective Boiling Performance Using a Microporous Surface Coating
,” ASME J. Heat Transfer
0022-1481, 123
(5
), pp. 976
–983
.8.
Kandlikar
, S. G.
, 2004, “Heat Transfer Mechanisms During Flow Boiling in Microchannels
,” ASME J. Heat Transfer
0022-1481, 126
(1
), pp. 8
–16
.9.
Qu
, W.
, and Mudawar
, I.
, 2004, “Measurement and Correlation of Critical Heat Flux in Two-Phase Micro-Channel Heat Sinks
,” Int. J. Heat Mass Transfer
0017-9310, 47
, pp. 5749
–5763
.10.
Bergles
, A. E.
, and Kandlikar
, S. G.
, 2005, “On the Nature of Critical Heat Flux in Microchannels
,” ASME J. Heat Transfer
0022-1481, 127
, pp. 101
–107
.11.
Koşar
, A.
, Kuo
, C. J.
, and Peles
, Y.
, 2005, “Boiling Heat Transfer in Rectangular Microchannels With Reentrant Cavities
,” Int. J. Heat Mass Transfer
0017-9310, 48
, pp. 4867
–4886
.12.
Koşar
, A.
, Kuo
, C. J.
, and Peles
, Y.
, 2005, “Reduced Pressure Boiling Heat Transfer in Rectangular Microchannels With Interconnected Reentrant Cavities
,” ASME J. Heat Transfer
0022-1481, 127
, pp. 1106
–1114
.13.
Koşar
, A.
, Kuo
, C. J.
, and Peles
, Y.
, 2006, “Suppression of Boiling Flow Oscillations in Parallel Microchannels by Inlet Restrictors
,” ASME J. Heat Transfer
0022-1481, 128
, pp. 251
–260
.14.
Harurama
, Y.
, and Katto
, Y.
, 1983, “New Hydrodynamic Model of Critical Heat Flux Applicable Widely to Both Pool and Forced Convection Boiling on Submerged Bodies in Saturated Liquids
,” Int. J. Heat Mass Transfer
0017-9310, 26
, pp. 379
–399
.15.
Dhir
, V. K.
, and Liaw
, S. P.
, 1989, “Framework for a Unified Model for Nucleate and Transition Pool Boiling
,” ASME J. Heat Transfer
0022-1481, 111
, pp. 739
–746
.16.
Sadasivan
, P.
, Unal
, C.
, and Nelson
, R.
, 1995, “Perspective: Issues in CHF Modeling—The Need for New Experiments
,” ASME J. Heat Transfer
0022-1481, 117
, pp. 558
–567
.17.
Golobič
, I.
, and Bergles
, A. E.
, 1997, “Effects of Heater-Side Factors on the Saturated Pool Boiling Critical Heat Flux
,” Experimental Thermal and Fluid Science 1997
, Elsevier
, New York
, pp. 43
–51
.18.
Howard
, A. H.
, and Mudawar
, I.
, 1999, “Orientation Effects on Pool Boiling Critical Heat Flux (CHF) and Modeling of CHF for Near-Vertical Surfaces
,” Int. J. Heat Mass Transfer
0017-9310, 42
, pp. 1665
–1688
.19.
Kandlikar
, S. G.
, 2001, “A Theoretical Model to Predict Pool Boiling CHF Incorporating Effects of Contact Angle and Orientation
,” ASME J. Heat Transfer
0022-1481, 123
, pp. 1071
–1079
.20.
Collier
, J. G.
, and Thome
, J. R.
, 1994, Convective Boiling and Condensation
, 3rd ed., Oxford Science Publications
, Oxford
.21.
Kandlikar
, S. G.
, 2002, “Fundamental Issues Related to Flow Boiling in Minichannels and Microchannels
,” Exp. Therm. Fluid Sci.
0894-1777, 26
, pp. 389
–407
.22.
Qu
, W.
, and Mudawar
, I.
, 2003, “Flow Boiling Heat Transfer in Two-Phase Micro-Channel Heat Sink—I. Experimental Investigation and Assessment of Correlation Methods
,” Int. J. Heat Mass Transfer
0017-9310, 46
(15
), pp. 2755
–2771
.23.
Bergles
, A. E.
, Lienhard
, J. H.
, Kendall
, G. E.
, and Griffith
, P.
, 2003, “Boiling and Evaporation in Small Diameter Channels
,” Heat Transfer Eng.
0145-7632, 24
(1
), pp. 18
–40
.24.
Thome
, J. R.
, 2004, “Boiling in Microchannels: A Review of Experiment and Theory
,” Int. J. Heat Fluid Flow
0142-727X, 25
, pp. 128
–139
.25.
Kline
, S.
, and McClintock
, F. A.
, 1953, “Describing Uncertainties in Single-Sample Experiments
,” Mech. Eng. (Am. Soc. Mech. Eng.)
0025-6501, 75
(1
), pp. 3
–8
.26.
Cornwell
, K.
, and Kew
, P. A.
, 1992, “Boiling in Small Parallel Channels
,” Energy Efficiency Process Technol.
, 37
(2
), pp. 624
–638
.27.
Celata
, G. P.
, and Mariani
, A.
, 1999, CHF and Post-CHF (Post-Dryout) Heat Transfer-Handbook of Phase Change: Boiling and Condensation
, Taylor&Francis
, New York
, pp. 443
–493
.28.
Carey
, V. P.
, 1992, Liquid-Vapor Phase Change Phenomena
, Hemisphere
, New York
, pp. 483
–564
.29.
Katto
, Y.
, and Ohne
, H.
, 1984, “An Improved Version of the Generalized Correlation of Critical Heat Flux for Convection Boiling in Uniformly Heated Vertical Tubes
,” Int. J. Heat Mass Transfer
0017-9310, 27
(9
), pp. 1641
–1648
.30.
Shah
, M. M.
, 1987, “Improved General Correlation for Critical Heat Flux During Upflow in Uniformly Heated Vertical Tubes
,” Int. J. Heat Fluid Flow
0142-727X, 8
(4
), pp. 326
–335
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