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Keywords: thermal performance
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. February 2023, 145(2): 022901.
Paper No: HT-22-1375
Published Online: November 22, 2022
... = 12,000. 1 Corresponding author. e-mail:  jnanabharat270@gmail.com 20 05 2022 22 10 2022 22 11 2022 solar air heater Nusselt number friction factor thermal performance W-shaped ribs The depletion in reserves of conventional sources of energy and the concern...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J. Heat Transfer. January 2023, 145(1): 012901.
Paper No: HT-22-1342
Published Online: November 17, 2022
... are compared for thermal performance based on two cases, i.e., (i) when air at equal mass flow rate and (ii) when air at equal Reynolds number is provided at the inlet of all designs. The Nusselt number correlation for both the upper and lower plates is presented for a constant heat flux of 800 W/m 2...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J. Heat Transfer. July 2019, 141(7): 071802.
Paper No: HT-18-1802
Published Online: May 14, 2019
...Tingting Hao; Hongbin Ma; Xuehu Ma A new oscillating heat pipe (OHP) charged with hybrid fluids can improve thermal performance. The key difference in this OHP is that it uses room temperature liquid metal (Galinstan consisting of gallium, indium, and tin) and water as the working fluid. The OHP...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. April 2019, 141(4): 041902.
Paper No: HT-18-1666
Published Online: February 27, 2019
...M. E. Nakhchi; J. A. Esfahani Numerical simulations are used to analyze the thermal performance of turbulent flow inside heat exchanger tube fitted with cross-cut twisted tape with alternate axis (CCTA). The design parameters include the Reynolds number ( 5000 < Re < 15 , 000 ) , cross-cut...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. February 2019, 141(2): 022601.
Paper No: HT-18-1187
Published Online: November 22, 2018
...-dimensional (3D) numerical model and surface-to-surface radiation model coupled to Rosseland approximation for radiation heat transfer. The effects of operating conditions and the porous structural parameters on the reactor thermal performance were investigated significantly. It was found that large axial...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2015, 137(6): 061001.
Paper No: HT-13-1632
Published Online: June 1, 2015
.... Furthermore, the evolution of configurations from V1 to V4 resulted in a gradual reduction of the hot spot temperature, according to the principle of “optimal distribution of imperfections” that characterizes the constructal law. thermal performance electronic cooling high conductivity optimum design...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. July 2014, 136(7): 071901.
Paper No: HT-13-1385
Published Online: April 10, 2014
... ) turb . A large eddy simulation (LES) approach was used in this study. heat transfer pin fins tip clearance low Reynolds number thermal performance minichannels Wang and Peles [ 15 ] and Ndao et al [ 16 ] studied (1) hollow pin fins issuing a jet into a microchannel and (2) a downward...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. April 2014, 136(4): 041704.
Paper No: HT-13-1047
Published Online: January 31, 2014
... devices. converging-diverging channels thermal performance laminar fluid flow flow visualization electronic cooling A computer aided design (CAD) illustration of the proposed microchannel heat sink containing the converging-diverging passages is shown in Fig. 1 . A typical heat sink...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. March 2013, 135(3): 031901.
Paper No: HT-11-1372
Published Online: February 8, 2013
... , “ Role of Random Roughness on Thermal Performance of Microfins ,” J. Thermophys. Heat Transfer , 21 ( 1 ), pp. 153 – 157 . 10.2514/1.22353 [14] Najafi , M. , Ramezanizadeh , M. , Taeibi-Rahni , M. , and Saidi , M. H. , 2006 , “ Analytical Solution of Fin/Slab Heat Transfer...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2011, 133(8): 081801.
Published Online: May 2, 2011
.... It can also be seen that with increasing Reynolds number, the effectiveness decrease in both cases with and without nanofluids. Therefore, to obtain higher thermal performance, the device is better to operate under low flow Reynolds numbers. Additionally, as seen with increasing volume fraction...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2011, 133(5): 051702.
Published Online: February 4, 2011
... characteristics in microsized wavy channels was performed by varying the wavy feature amplitude, wavelength, and aspect ratio for different Reynolds numbers between 50 and 150. Two different types of wavy channels were considered and their thermal performance for a constant heat flux of 47 W / cm 2 was compared...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. June 2010, 132(6): 061702.
Published Online: April 2, 2010
... 04 2010 boundary layer turbulence entropy external flows heat transfer laminar flow microchannel flow heat transfer pin fins low Reynolds number thermal performance entropy generation minimization (EGM) minichannels Heat transfer from or to a surface can be augmented...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. February 2009, 131(2): 024503.
Published Online: December 29, 2008
... and porosity. The thermal performance was evaluated by the ratio of the Nusselt number with and without a high porous material and the entropy generation. It was recognized that the high porous material was effective in low Reynolds numbers and the Reynolds number, which minimized the entropy generation...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. July 2008, 130(7): 071704.
Published Online: May 20, 2008
... ) on the ( a ) top wall, and ( b ) pin-top surface ( t = 0.3 ) at Re D ≈ 325 20 04 2007 08 10 2007 20 05 2008 channel flow heat transfer laminar flow wakes heat transfer pin fins tip clearance low Reynolds number thermal performance minichannels...