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Keywords: microchannels
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2014, 136(6): 061502.
Paper No: HT-13-1316
Published Online: March 11, 2014
... and pressure drop characteristics during two phase flow in microchannels. In this paper, a simplified model has been developed for predicting bubble growth rate at nucleation cavity in microchannel. It is assumed that heat supplied at nucleation site is divided between the liquid phase and the vapor phase...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. October 2013, 135(10): 101004.
Paper No: HT-12-1326
Published Online: September 11, 2013
... conditions are similar to the typical conditions under which the classical correlations have been developed. if the goal of the experimental work is to use the data in order to develop a new correlation for the prediction of friction factor or Nusselt number in microchannels only an “a priori” evaluation...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. October 2013, 135(10): 101701.
Paper No: HT-11-1571
Published Online: August 19, 2013
... . Manuscript received December 14, 2011; final manuscript received September 11, 2012; published online August 19, 2013. Assoc. Editor: Sujoy Kumar Saha. 14 12 2011 11 09 2012 Microchannels have well-known applications in cooling because of their ability to handle large quantities of heat...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2013, 135(9): 091401.
Paper No: HT-12-1313
Published Online: July 26, 2013
... the walls and fluid regions, which are often of relevance in microchannels flows. The single domain formulation simultaneously models the heat transfer phenomena at both the fluid stream and the channel walls, by making use of coefficients represented as space variable functions, with abrupt transitions...
Journal Articles
Article Type: Evaporation, Boiling, and Condensation
J. Heat Transfer. July 2012, 134(7): 071502.
Published Online: May 22, 2012
...T. P. Lagus; F. A. Kulacki Heat transfer coefficients and bubble motion characteristics are reported for two-phase water flow in an array of 13 equally spaced microchannels over an area of 1 cm 2 . Each channel has D h = 451 ± 38 μm, W/H = 0.8, and L/D h = 22.2. Uniform heat flux is applied through...
Journal Articles
Article Type: Technology Review
J. Heat Transfer. March 2012, 134(3): 034001.
Published Online: January 10, 2012
...Satish G. Kandlikar As the scale of devices becomes small, thermal control and heat dissipation from these devices can be effectively accomplished through the implementation of microchannel passages. The small passages provide a high surface area to volume ratio that enables higher heat transfer...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020906.
Published Online: December 19, 2011
... predictive method we can cite the Thome et al. [( 14 )] three zone model for predicting heat transfer in microchannels during the passage of elongated bubbles, Qu and Mudawar [( 22 )] model for annular flow in rectangular multimicrochannels and those of Thome and coworkers for macrochannels [( 23...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020902.
Published Online: December 13, 2011
...Ting-Yu Lin; Satish G. Kandlikar A model is developed to analyze the effect of axial conduction on heat transfer during single-phase flow in microchannels. The axial heat conduction in the wall introduces heat flow toward the inlet section resulting in an increase in the local fluid temperature...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2011, 133(8): 081501.
Published Online: April 26, 2011
... ,” Exp. Therm. Fluid Sci. 0894-1777 , 26 , pp. 53 – 64 . 10.1016/S0894-1777(02)00107-3 Thome , J. R. , 2006 , “ State-of-the-Art Overview of Boiling and Two-Phase Flows in Microchannels ,” Heat Transfer Eng. 0145-7632 , 27 , pp. 4 – 19 . 10.1080/01457630600845481 Cavallini...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2011, 133(5): 052902.
Published Online: February 3, 2011
... transfer performance of pool boiling systems is not adequate to match the cooling ability provided by enhanced microchannels operating under single-phase conditions. The objective of this work is to evaluate the pool boiling performance of structured surface features etched on a silicon chip...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2010, 132(8): 081501.
Published Online: June 9, 2010
...Satish G. Kandlikar Accurate prediction of critical heat flux (CHF) in microchannels and minichannels is of great interest in estimating the safe operational limits of cooling systems employing flow boiling. Scale analysis is applied to identify the relevant forces leading to the CHF condition...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2010, 132(8): 081402.
Published Online: June 2, 2010
...W. Escher; T. Brunschwiler; B. Michel; D. Poulikakos We report an experimental investigation of a novel, high performance ultrathin manifold microchannel heat sink. The heat sink consists of impinging liquid slot-jets on a structured surface fed with liquid coolant by an overlying two-dimensional...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. April 2010, 132(4): 041010.
Published Online: February 22, 2010
...Akhil Agarwal; Srinivas Garimella Condensation pressure drops and heat transfer coefficients for refrigerant R134a flowing through rectangular microchannels with hydraulic diameters ranging from 100 μ m to 200 μ m are measured in small quality increments. The channels are fabricated on a copper...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. June 2009, 131(6): 062901.
Published Online: March 31, 2009
...Sarada Kuravi; Krishna M. Kota; Jianhua Du; Louis C. Chow Microchannels are used in applications where large amount of heat is produced. Phase change material (PCM) slurries can be used as a heat transfer fluid in microchannels as they provide increased heat capacity during the melting of phase...
Journal Articles
Article Type: Micro/Nanoscale Heat Transfer—Part Ii
J. Heat Transfer. April 2009, 131(4): 043211.
Published Online: March 4, 2009
...Ping Cheng; Guodong Wang; Xiaojun Quan Recent work on boiling of water and condensation of steam in single and parallel microchannels is reviewed in this paper. It is found that the amplitude and frequency of fluctuations of temperature and pressure during the unstable flow-boiling mode depend...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2009, 131(1): 012401.
Published Online: October 20, 2008
..., water is the preferred working fluid for temperatures above 50 ° C . 21 01 2008 15 05 2008 20 10 2008 ammonia capillarity confined flow heat pipes heat transfer microchannel flow organic compounds surface tension viscosity water microheat pipes thermal management...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. April 2008, 130(4): 042404.
Published Online: March 17, 2008
... ,” Rarefied Gas Dynamics: Proceedings of the 19th International Symposium , J. Harvey and G. Lord , eds., Oxford, pp. 347 – 353 . 31 07 2006 04 04 2007 17 03 2008 Couette flow heat transfer microchannel flow pipe flow rotational flow heat transfer...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. October 2007, 129(10): 1321–1332.
Published Online: December 14, 2006
...Dong Liu; Suresh V. Garimella Flow boiling heat transfer to water in microchannels is experimentally investigated. The dimensions of the microchannels considered are 275 × 636 and 406 × 1063 μ m 2 . The experiments are conducted at inlet water temperatures in the range of 67 – 95 ° C and mass...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. September 2007, 129(9): 1187–1194.
Published Online: December 11, 2006
...C. Nonino; S. Del Giudice; S. Savino The effects of viscous dissipation and temperature dependent viscosity in simultaneously developing laminar flows of liquids in straight microchannels are studied with reference to convective boundary conditions. Two different geometries, namely the circular...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. July 2007, 129(7): 844–851.
Published Online: July 10, 2006
...Ali Koşar; Yoav Peles Critical heat flux (CHF) of R-123 in a silicon-based microchannel heat sink was investigated at exit pressures ranging from 227 kPa to 520 kPa . Critical heat flux data were obtained over effective heat fluxes ranging from 53 W ∕ cm 2 to 196 W ∕ cm 2 and mass fluxes from 291...