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Keywords: cooling
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. March 2020, 142(3): 031802.
Paper No: HT-19-1378
Published Online: January 13, 2020
...Volkan Kirmaci In this study, heating and cooling performances of two vortex tubes connected in parallel using different working fluids were compared. In experimental studies, oxygen, nitrogen, and air were used as working fluids in counterflow Ranque–Hilsch vortex tube (RHVT) and performance...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2013, 135(11): 111008.
Paper No: HT-12-1185
Published Online: September 23, 2013
.... A. , 2012 , “ Experimental Investigation of Vapor Chamber With Different Working Fluids at Different Charge Ratios ,” Ain Shams Eng. J. , 3 , pp. 289 – 297 . [11] Harmand S. , Sonan , R. , Fakès , M. , and Hassan , H. , 2011 , “ Transient Cooling of Electronic Components...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. April 2012, 134(4): 041401.
Published Online: February 13, 2012
... aisle arrangement of racks cooled by one CRAC unit. While the thermal data throughout the facility can be collected in about 30 min using a 3D temperature mapping tool, the POD method is able to generate temperature field throughout the data center in less than 2 s on a high end desktop personal...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2012, 134(3): 031021.
Published Online: January 20, 2012
... limited by the low thermal conductivity of foods and increasing heating and cooling rates is critical in maximizing product quality. This paper briefly reviews the heat transfer problems found in food processing, with particular reference to the modeling of heating to ensure safety, problems found in the...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2012, 134(3): 031024.
Published Online: January 20, 2012
...Allan D. Kraus The forced cooled electronic chassis is revisited and, because of recent developments, changes which amend the design procedure are proposed. These considerations involve the thickness of the cover and splitter plates dictated by the Murray–Gardner assumptions, the impact of the so...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2012, 134(3): 031006.
Published Online: January 11, 2012
... military engines. To ensure the turbine airfoil component integrity operated under such a condition, advanced cooling capacity by both external and internal means was necessary to remove the excessive heat load from the turbine airfoil. This paper discusses state-of-the-art airfoil cooling technologies...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020904.
Published Online: December 13, 2011
...Markus Schwänen; Andrew Duggleby Internal cooling of the trailing edge region in a gas turbine blade is typically achieved with an array of pin fins. In order to better understand the effectiveness of this configuration, high performance computations are performed on cylindrical pin fins with a...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2012, 134(2): 021503.
Published Online: December 13, 2011
... during the heating period, and associated with the existence of a large temperature hysteresis in a heating and cooling cycle. Experimental measurement also shows that over 12% of the liquid by volume is lost without being phase changed, due to high-speed vapor flow induced liquid splash. Liquid splash...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020903.
Published Online: December 13, 2011
... temperature, temperature distribution, and cooling power using only inlet gas properties as input variables. To achieve this, the model incorporated gas equations of state to account for changing gas properties due to heat transfer within the heat exchanger and expansion within the capillary. In consideration...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2012, 134(1): 011504.
Published Online: November 18, 2011
...Tailian Chen; Suresh V. Garimella The cooling capacity of two-phase transport in microchannels is limited by the occurrence of critical heat flux (CHF). Due to the nature of the phenomenon, it is challenging to obtain reliable CHF data without causing damage to the device under test. In this work...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2012, 134(1): 011501.
Published Online: October 28, 2011
...T. S. Dhanasekaran; Ting Wang Film cooling techniques have been successfully applied to gas turbine blades to protect them from the hot flue gas. However, a continuous demand of increasing the turbine inlet temperature to raise the efficiency of the turbine requires continuous improvement in film...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2012, 134(1): 011601.
Published Online: October 27, 2011
...Myeongsub Kim; Minami Yoda Cooling microelectronics with heat flux values of hundreds of kW/cm 2 over hot spots with typical dimensions well below 1 mm will require new single- and two-phase thermal management technologies with micron-scale addressability. However, experimental studies of thermal...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2011, 133(11): 111701.
Published Online: September 16, 2011
...Zhongxuan Du; Wensheng Lin; Anzhong Gu Cooling of supercritical CH 4 /N 2 mixture is the most important heat transfer process during coalbed methane (CBM) liquefaction. In this paper, numerical studies of the turbulent convective heat transfer of supercritical CH 4 /N 2 flowing inside a vertical...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2011, 133(11): 111502.
Published Online: August 31, 2011
... in Liquid Droplet Radiator ,” Acta Astronaut. , 59 ( 1–5 ), pp. 192 – 199 . 10.1016/j.actaastro.2006.02.034 10 Siegel , R. , 1987 , “ Transient Radiative Cooling of a Droplet-Filled Layer ,” J. Heat Transfer , 109 ( 1 ), pp. 159 – 164 . 10.1115/1.3248037 11 Siegel , R...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2011, 133(10): 101502.
Published Online: August 11, 2011
....2008.06.002 cooling copper electrodeposition finite element analysis heat pipes micromechanical devices nanofabrication nanostructured materials oxidation power semiconductor devices semiconductor device models thermal management (packaging) heat pipe electronic cooling evaporation...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2011, 133(10): 101503.
Published Online: August 11, 2011
... are discretized by using the finite volume method. The algebraic system equations deduced from this discretization are solved with the Thomas and Gauss algorithms. Results show that the evaporative cooling of the wetted wall and the air flow through the tube can be produced by low heat flux applied to...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. September 2011, 133(9): 092901.
Published Online: August 1, 2011
... thermal conductivity. Unfortunately, a heat pipe integrated with cooling fin in the adiabatic section has changed its original heat transfer property. The integrated cooling fin in the adiabatic section has in advance taken heat of the vapor away and caused the vapor to be condensed in the adiabatic...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. September 2011, 133(9): 091701.
Published Online: July 7, 2011
... value of the dimensionless Debye-Huckel parameter is accompanied by a higher Nusselt number for wall cooling, whereas the opposite is true for wall heating case. Although to increase the dimensionless Joule heating term is to decrease Nusselt number for both pseudoplastic and dilatant fluids...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2011, 133(8): 082502.
Published Online: May 4, 2011
... block and two counter rotating vortices over the top left side. These flow structures weaken considerably during the first 35 min of the transient cool down of the engine block and the exhaust heaters. Colder ambient air is sucked into the engine compartment at the vents near the bottom of the...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2011, 133(8): 082801.
Published Online: May 3, 2011
... in fluid temperature and the heat exchange among pipes show that most of the heat transfer occurs in the downward legs. Furthermore, in some cases, the fluid in the heat extraction leg gets cooled as it flows upward, which is contrary to the desired effect. 11 03 2010...