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Keywords: carbon nanotubes
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2022, 144(9): 093501.
Paper No: HT-21-1347
Published Online: June 21, 2022
... eutectic (lithium carbonate and potassium carbonate at a molar ratio of 62:38, respectively) is used as the base material. Two different carbon allotropes, graphite nanoparticles (Gp) and carbon nanotube (CNT) are used as dopants to look into the morphological effect on specific heat (C p ). A series...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. September 2015, 137(9): 091009.
Paper No: HT-14-1129
Published Online: September 1, 2015
... ∫ 0 2 π ∫ 0 π / 2 ɛ ' λ cos θ i sin θ i d θ i d φ i During the past decade, research on carbon nanotubes has revealed potential advances in thermal engineering applications. The present study investigates the radiative absorption...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2014, 136(6): 062702.
Paper No: HT-12-1305
Published Online: March 10, 2014
..., e.g., single-walled carbon nanotube (SWCNT) arrays with long-range order across macroscopic dimensions. So far, an accurate generalized method of modeling radiative properties of these systems has yet to be realized. In this work, a multiscale computational approach combining first-principles methods...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. January 2014, 136(1): 011303.
Paper No: HT-13-1106
Published Online: October 25, 2013
...: Oronzio Manca. 28 02 2013 09 07 2013 We report and model a linear increase in the thermal conductivity ( κ ) of polymer composites incorporated with relatively low length/diameter aspect ratio multiwalled carbon nanotubes (CNTs). There was no evidence of percolation-like behavior...
Journal Articles
Article Type: Micro/Nanoscale Heat Transfer
J. Heat Transfer. September 2012, 134(9): 092401.
Published Online: July 2, 2012
...Li Wei; Feng Yanhui; Peng Jia; Zhang Xinxin The thermal conductivity of carbon nanotubes with Stone-Wales (SW) defects was investigated using non-equilibrium molecular dynamics method. The defect effects were analyzed by the temperature profile and local thermal resistance of the nanotubes with one...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2012, 134(5): 051004.
Published Online: April 13, 2012
... inertia is neglected as the heat flux is not very high. The heat flux in carbon nanotubes (CNTs) may be as high as 10 12 W/m 2 . In this case, Fourier’s law no longer holds. However, what is estimated through the ratio of the heat flux to the temperature gradient by molecular dynamics (MD) simulations...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. April 2012, 134(4): 041302.
Published Online: February 13, 2012
...Wonchang Park; Kyungwho Choi; Khalid Lafdi; Choongho Yu Carbon nanotube- or/and graphite-filled polymer composites were synthesized by using simple mixing and drying methods, and their thermal conductivities and structures were characterized by using a steady-state method (ASTM D5470) and scanning...
Journal Articles
Article Type: Heat Transfer In Nanochannels, Microchannels, And Minichannels
J. Heat Transfer. February 2012, 134(2): 020910.
Published Online: December 22, 2011
...Pamela M. Norris; Justin L. Smoyer; John C. Duda; Patrick E. Hopkins Due to the high intrinsic thermal conductivity of carbon allotropes, there have been many attempts to incorporate such structures into existing thermal abatement technologies. In particular, carbon nanotubes (CNTs) and graphitic...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2012, 134(2): 021503.
Published Online: December 13, 2011
... in the biporous (biwick) wick structure due to new mass transfer mechanisms, such as liquid splash at high heat flux, and vapor bubble/jet occupation of liquid transport passages. This article investigates the dryout phenomenon in carbon nanotube (CNT) based biwick structure. The incipience and expansion...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. July 2011, 133(7): 071501.
Published Online: April 1, 2011
...K. Babu; T. S. Prasanna Kumar In this article, water based carbon nanotube (CNT) nanofluids have been used as quenchants to study their effects on the heat transfer rate during immersion quenching. For this purpose, water based CNT nanofluids were prepared by dispersing CNTs with and without...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. March 2011, 133(3): 031001.
Published Online: November 15, 2010
...Myung Gwan Hahm; Young-Kyun Kwon; Ahmed Busnaina; Yung Joon Jung Due to their unique one-dimensional nanostructure along with excellent mechanical, electrical, and optical properties, carbon nanotubes (CNTs) become a promising material for diverse nanotechnology applications. However, large-scale...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. September 2010, 132(9): 092401.
Published Online: July 7, 2010
... for heat exchanger applications. We report here the effective convection coefficient and viscosity in microtubes ( D = 0.5 mm ) along with stationary thermal conductivity measurements for nanofluids based on spherical particles ( Al 2 O 3 , ZnO, and CuO) and carbon nanotubes. Sample data include...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2010, 132(8): 082402.
Published Online: June 9, 2010
...Anna S. Cherkasova; Jerry W. Shan The effective thermal conductivities of aqueous nanofluids containing surfactant-stabilized multiwalled carbon nanotubes were measured and compared with the predictions of effective medium theory ( Nan, C.-W., et al., 1997, “Effective Thermal Conductivity...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. August 2010, 132(8): 084501.
Published Online: June 4, 2010
...Andrew C. Lysaght; Wilson K. S. Chiu Thermal diffusion, the process by which a multicomponent mixture develops a concentration gradient when exposed to a temperature gradient, has been studied in order to understand if its inclusion is warranted in the modeling of single-wall carbon nanotubes...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2010, 132(5): 052403.
Published Online: March 9, 2010
...Qingjun Cai; Chung-Lung Chen With the increase in power consumption in compact electronic devices, passive heat transfer cooling technologies with high-heat-flux characteristics are highly desired in microelectronic industries. Carbon nanotube (CNT) clusters have high thermal conductivity, nanopore...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. July 2009, 131(7): 071501.
Published Online: April 30, 2009
...V. Sathyamurthi; H-S. Ahn; D. Banerjee; S. C. Lau Pool boiling experiments were conducted with three horizontal, flat, silicon surfaces, two of which were coated with vertically aligned multiwalled carbon nanotubes (MWCNTs). The two wafers were coated with MWCNT of two different thicknesses: 9 μ m...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2009, 131(5): 052402.
Published Online: March 19, 2009
... with the previously reported conductivity values for this sample. For a suspension of multiwall carbon nanotubes in silicone oil, the thermal conductivity is increased by 10% over that of the base fluid for a concentration of 0.2% by volume. Scanning electron microscopy was utilized to examine the structure...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. November 2008, 130(11): 114503.
Published Online: September 2, 2008
...Baratunde A. Cola; Placidus B. Amama; Xianfan Xu; Timothy S. Fisher Due to their excellent compliance and high thermal conductivity, dry carbon nanotube (CNT) array interfaces are promising candidates to address the thermal management needs of power dense microelectronic components and devices...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2008, 130(5): 052401.
Published Online: April 8, 2008
...M. A. Panzer; G. Zhang; D. Mann; X. Hu; E. Pop; H. Dai; K. E. Goodson Owing to their high thermal conductivities, carbon nanotubes (CNTs) are promising for use in advanced thermal interface materials. While there has been much previous research on the properties of isolated CNTs, there are few...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. April 2008, 130(4): 044502.
Published Online: March 20, 2008
...Liying Zhu; Ganhua Lu; Junhong Chen A generic and material-independent dry route based on electrostatic force directed assembly (ESFDA) is used to assemble various nanoparticles onto multiwalled carbon nanotubes (CNTs). Charged and nonagglomerated aerosol nanocrystals are first produced using...