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Keywords: thermal conductivity
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Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. May 2024, 146(5): 054501.
Paper No: HT-23-1488
Published Online: March 7, 2024
..., their typically low thermal conductivities impose limitations on energy charging and discharging rates. Extensive research efforts have focused on improving PCM thermal conductivity through the incorporation of additives. However, this approach presents challenges such as achieving uniform mixtures, maintaining...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. January 2024, 146(1): 011003.
Paper No: HT-23-1228
Published Online: October 18, 2023
... specific charge, a high density of power, and a long life. A revolutionary design of a trapezoidal battery pack with a liquid cooling system based on composite phase change material (CPCM) is proposed in this research. The phase change material (PCM) is paraffin wax (PA), and the high thermal conductivity...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. December 2022, 144(12): 121001.
Paper No: HT-21-1778
Published Online: September 29, 2022
..., a decrease in the current density from 60 nA to 3 nA, and a decrease of thermal conductivity from 1.8 W m −1 K −1 to 0.12 W m −1 K −1 . These results introduce the Ce-doped Ba 2 TiMoO 6 perovskite as a potential candidate for a new generation of thermal barrier coatings (TBCs). Double perovskite is written...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. July 2022, 144(7): 071401.
Paper No: HT-21-1638
Published Online: May 11, 2022
... cosh ( l 1 σ e j θ ) 1 Corresponding author. e-mail:  info@ctherm.com 22 09 2021 13 04 2022 11 05 2022 thermal effusivity thermal conductivity modified transient plane source transient measurement method thermal contact resistance...
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
... at the bottom of the pipe. The mean flow velocity and the heat transfer coefficient decrease along the condensation length. The local results demonstrate that the heat transfer coefficient is not merely affected by the condensate film thickness but also by the effective thermal conductivity of the flow...
Includes: Supplementary data
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. February 2022, 144(2): 023501.
Paper No: HT-21-1088
Published Online: December 20, 2021
...Xiaojian Wang; Liangbi Wang The most common nongranular fillers are sheet and fiber. When they are distributed along the heat flux direction, the thermal conductivity of the composite increases greatly. Meanwhile, the filler contact also has a large effect on the thermal conductivity. However...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. July 2021, 143(7): 072102.
Paper No: HT-20-1504
Published Online: May 17, 2021
... of the composite. This value has the meaning of “dynamic effective thermal diffusivity.” Afterward, the effective thermal conductivity ( λ eff ) is calculated from the dynamic effective thermal diffusivity, equivalent heat capacity, and density of the composite. The results of this methodology are compared...
Includes: Supplementary data
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. April 2021, 143(4): 042102.
Paper No: HT-20-1479
Published Online: February 23, 2021
.... The solutions of governing equations show that the transfer of heat in a porous rod is not only due to the conduction but also produced by the local particle displacement phenomenon. It is observed that the time-averaged transfer of heat depends on the circular frequency, porosity, thermal conductivity, thermal...
Includes: Supplementary data
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. March 2021, 143(3): 034502.
Paper No: HT-20-1367
Published Online: January 28, 2021
... by a thermal conductivity that can reach lower values than any other material. Our aim was to explain the causes of the super-insulation of this material with the use of a calculating method of conductive heat transfer flux in an aerogel structure and determine the equivalent thermal conductivity...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. September 2020, 142(9): 094502.
Paper No: HT-20-1199
Published Online: July 8, 2020
... strategy has been established to control the anisotropy of its effective thermal conductivity tensor by deforming the structure according to its specific heat transfer application. The solution surface of flat triangle was constructed in the space with three coordinate axes being the principal components...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. December 2019, 141(12): 121401.
Paper No: HT-19-1412
Published Online: October 8, 2019
... circular heat source CHS composite Hankel Laplace thermal conductivity thermal diffusivity The problem of a three-dimensional (3D) heat flow from a finite circular heat source (CHS) has been of interest for many decades due to practical cases such as frictional heating, heating of electric...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. April 2019, 141(4): 044501.
Paper No: HT-18-1399
Published Online: February 25, 2019
...C. G. Subramaniam A generalized effective medium theory (EMT) is proposed to account for the fractal structure of the dispersed phase in a dispersing medium under the dilute limit. The thermal conductivity of nanofluids with fractal aggregates is studied using the proposed model. Fractal aggregates...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. October 2015, 137(10): 101601.
Paper No: HT-14-1118
Published Online: October 1, 2015
... 02 06 2015 This paper reports on a new application of the thermal probe in nonlinear systems. Whereas the thermal probe has been originally developed to determine the thermal conductivity in linear cases (where the thermophysical properties are considered independent of the temperature...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. August 2015, 137(8): 081601.
Paper No: HT-13-1325
Published Online: August 1, 2015
... labeled in the data presented below (i.e., 16 E-1step and 8 E-2step), while all the other aerogels were made using the three step method. The thermal conductivity of aerogel 16 E is presented both when measured by the silver-like polished surface hot-wire and blackened hot-wire. All other aerogels were...