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Keywords: heat transfer coefficient
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Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. August 2023, 145(8): 084502.
Paper No: HT-22-1143
Published Online: April 26, 2023
... by around 18% as compared to neglected fin-thickness that may arise due to altered heat transfer coefficient caused by higher velocity over the extended surface to accommodate finite fin dimension. Finally, pressure drop and Nusselt number are correlated with the governing parameters including fin-thickness...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. February 2022, 144(2): 021602.
Paper No: HT-21-1402
Published Online: December 21, 2021
.... The local results demonstrate an increase in condensate film thickness from a particular angular position, which is influenced by the vapor quality of the flow to the bottom of the pipe. The heat transfer coefficient decreases around the pipe circumference from the top to the bottom of the pipe. The results...
Includes: Supplementary data
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. November 2021, 143(11): 111602.
Paper No: HT-20-1735
Published Online: September 22, 2021
... situations before presenting respective heat transfer coefficients. 01 12 2020 09 08 2021 22 09 2021 boiling inclination merging sliding bubble heat transfer coefficient For catering to high-density heat dissipation needs, boiling heat transfer is the most preferred...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2021, 143(6): 063301.
Paper No: HT-20-1209
Published Online: April 21, 2021
... volume method heat transfer coefficient Nusselt number performance evaluation criterion 04 04 2020 22 03 2021 21 04 2021 e-mail:  madhujitme79@gmail.com e-mail:  arindam2012@gmail.com e-mail:  sagnikpal81@gmail.com e-mail:  ranjandas@iitrpr.ac.in e-mail:  aranjan359...
Includes: Supplementary data
Journal Articles
Publisher: ASME
Article Type: Review Articles
J. Heat Mass Transfer. March 2021, 143(3): 030801.
Paper No: HT-20-1368
Published Online: December 21, 2020
... perspectives on future prospects are finally addressed. e-mail:  xgn@nwpu.edu.cn 03 06 2020 13 10 2020 21 12 2020 film cooling combined-hole antikidney vortex cooling effectiveness heat transfer coefficient In the 1970s, a new cooling technology was introduced...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. July 2020, 142(7): 071603.
Paper No: HT-19-1597
Published Online: May 29, 2020
... and outlet vapor qualities were fixed at 0.8 and 0.2, respectively. The test tubes had the same outer diameter of 12.7 mm. Results showed that the dimpled and protruded surface tubes enhanced the convection condensation heat transfer and the heat transfer coefficient was 1.4–1.6 times higher than...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2020, 142(6): 061805.
Paper No: HT-19-1707
Published Online: April 27, 2020
... a = coefficient in Eq. (3) b = coefficient in Eq. (4) c = exponent on Reynolds number, Eq. (4) C f = local skin friction coefficient d = coefficient in Churchill's function ϕ f = Darcy friction factor h = local heat transfer coefficient, W m –2 K –1...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2020, 142(6): 061801.
Paper No: HT-19-1295
Published Online: April 8, 2020
...Lin Ye; Cun-liang Liu; Feng Liu; Yu-quan Yang; Hui-ren Zhu The heat transfer coefficient of counterinclined film holes fed by different intake structures on the turbine vane leading edge (LE) model is experimentally investigated in this paper. A semicylinder model is adopted to model the vane...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. May 2020, 142(5): 052301.
Paper No: HT-19-1298
Published Online: March 17, 2020
... evaluated the thermal hydraulic performance for different foam configurations and the optimum value of a given PPI was found to be at an intermediate rather than the lowest foam thickness. Jet impingement metal foam heat transfer coefficient electronic cooling 24 05 2019 22 11 2019...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. April 2020, 142(4): 041601.
Paper No: HT-19-1428
Published Online: February 20, 2020
... attached to a microscope and an environmental scanning electrical microscope (ESEM). Out-of-plane droplet jumping motion on superhydrophilic region and gravity effect on the droplet motion were examined. Experiment results showed that effective heat transfer coefficients of hybrid superhydrophobic...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. July 2019, 141(7): 071901.
Paper No: HT-18-1030
Published Online: May 14, 2019
.../10407782.2015.1109386 C = chord of cylinder DNS = direct numerical simulation FV = finite volume method G = gap distance GCI = grid convergence index h ¯ = heat transfer coefficient h ¯ * = time-mean heat transfer coefficient h...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. July 2018, 140(7): 074501.
Paper No: HT-17-1260
Published Online: March 27, 2018
...K. S. Kulkarni; U. Madanan; T. W. Simon; R. J. Goldstein If a steady thermal boundary layer is sufficiently thick, wall heat fluxes and associated convective heat transfer coefficients can be directly calculated from measured temperature distributions taken within it using a traversing thermocouple...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. November 2015, 137(11): 111501.
Paper No: HT-13-1405
Published Online: June 9, 2015
...D. Janssen; J. M. Dixon; S. J. Young; F. A. Kulacki Heat transfer coefficients in a set of three symmetrically heated narrow gap channels arranged in line are reported at power densities of 1 kW/cm 3 and wall heat flux of 3–40 W/cm 2 . This configuration emulates an electronics system wherein power...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2013, 135(6): 061101.
Paper No: HT-12-1447
Published Online: May 16, 2013
... row numbers required in order for flow and thermal conditions to stabilize. Zukauskas and Ulinskas report the relationship between the friction factor and heat transfer coefficient in a bank of staggered cylinders with a finite number of rows, f Z finite and h finite...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. March 2013, 135(3): 031703.
Paper No: HT-11-1434
Published Online: February 11, 2013
... are therefore higher at higher Re. In laminar flow, the heat transfer coefficient is constant and independent of Re, which causes ( T w,x – T f,x ) to increase with heat flux and Re. The low heat flux and ( T w,x – T f,x ) values in the low Re case thus lead to higher uncertainty in Nu. Fig. 8...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. March 2013, 135(3): 031704.
Paper No: HT-11-1435
Published Online: February 8, 2013
.... For laminar flow. The experimental Nu data is seen to be in good agreement with the theoretical value of 4.364 for laminar fully developed flow. The Nu slightly increases with Re due to the increase in developing length. For turbulent flow, the heat transfer coefficient increases significantly with Re...
Journal Articles
Publisher: ASME
Article Type: Evaporation, Boiling, and Condensation
J. Heat Mass Transfer. October 2012, 134(10): 101501.
Published Online: August 7, 2012
... standard lithography and etching techniques. Pores which separate microscale pin fins are used to generate high capillary suction, while larger microchannels are used to reduce overall flow resistance. The heat transfer coefficient is found to depend on the area coverage of a liquid film with thickness...