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Keywords: specific heat
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Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. May 2021, 143(5): 054501.
Paper No: HT-19-1143
Published Online: March 19, 2021
...Hani Tiznobaik; Zahra Pournorouz; Joohyun Seo; Amirhossein Mostafavi; Donghyun Shin In this study, the specific heat of molten salt nano-eutectic (Li 2 CO 3 -K 2 CO 3 doped with SiO 2 nanoparticles) was theoretically and computationally investigated. The effective specific heat of a nano-eutectic...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. March 2013, 135(3): 032801.
Paper No: HT-10-1443
Published Online: February 8, 2013
.... Editor: Patrick E. Phelan. 26 09 2010 20 09 2011 Anomalous enhancements in the specific heat capacity values of nanomaterials were measured in this study. Silica nanoparticles (∼2–20 nm) were dispersed into eutectic of lithium carbonate and potassium carbonate (62:38 by molar ratio...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2012, 134(11): 111601.
Published Online: September 24, 2012
...-Heating Technique ,” Rev. Sci. Instrum. , 76 , p. 043904 . 10.1063/1.1884045 [7] Matsumoto , T. , and Ono , A. , 2001 , “ Hemispherical Total Emissivity and Specific Heat Capacity Measurements by Electrical Pulse-Heating Method With a Brief Steady State ,” Meas. Sci. Technol. , 12...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. April 2012, 134(4): 042401.
Published Online: February 13, 2012
...P. Chantrenne; C. Ould-Lahoucine The kinetic theory of gas is used to predict the specific heat and thermal conductivity of ZnO nanostructures. In this model, phonons are considered as a gas whose basic properties are given by phonon dispersion curves. The model also requires knowledge...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2012, 134(1): 011302.
Published Online: November 18, 2011
.... For the spherical shell under consideration, it is assumed that material properties such as thermal conductivity, density, and specific heat capacity may vary in radial, polar, and azimuthal directions of the spherical shell; the governing heat conduction equation of the shell is a second-order partial differential...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2011, 133(11): 111301.
Published Online: August 31, 2011
... for the direct problem solution, even for the physical situation of a randomly distributed dispersed phase [( 14 )]. The authors would like to acknowledge the financial support provided by CNPq, CAPES, and FAPERJ, Brazilian agencies for the fostering of sciences. c p = specific heat, Eq...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2011, 133(2): 021304.
Published Online: November 3, 2010
... that the material properties such as thermal conductivity, density, and specific heat capacity vary in the width direction, and the governing heat conduction equation of the plate is a second-order partial differential equation. Using Lyapunov’s theorem, it is shown that by applying controlled heat flux through...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. February 2011, 133(2): 024501.
Published Online: November 2, 2010
...Donghyun Shin; Debjyoti Banerjee Silica nanoparticles (1% by weight) were dispersed in a eutectic of lithium carbonate and potassium carbonate (62:38 ratio) to obtain high temperature nanofluids. A differential scanning calorimeter instrument was used to measure the specific heat of the neat molten...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. September 2010, 132(9): 091301.
Published Online: June 23, 2010
... alloys convection nickel alloys specific heat strips thermal conductivity numerical simulation thermal conductivity thermophysical properties transient hot-strip method The theory of the transient hot-strip (THS) method ( 1 2 ) is similar to the transient hot-wire (THW) method...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. May 2010, 132(5): 051701.
Published Online: March 4, 2010
... momentum nitrogen organic compounds oxygen specific heat sulphur compounds thermal conductivity viscosity xenon boundary layer flow helium gas binary gas mixtures heat transfer enhancement From the dual standpoints of fundamental and applied researches, laminar boundary layer flows...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. January 2010, 132(1): 014504.
Published Online: November 4, 2009
..., the interband and intraband contributions to thermophysical properties differ. conduction bands electron-phonon interactions Fermi level laser beam effects specific heat transition metals intraband transition interband transition electron-phonon coupling factor short pulsed laser heating...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. January 2010, 132(1): 012403.
Published Online: October 26, 2009
... and reduced the heat capacity measurement errors. Heat capacities of copper thin films with thicknesses from 20 nm to 340 nm are measured in the temperature range from 300 K to 420 K in vacuum of 1 mPa. The specific heat of the 340 nm Cu film is close to the literature data of bulk Cu. For the thinner films...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2009, 131(8): 082401.
Published Online: June 5, 2009
... 2008 25 02 2009 05 06 2009 Boltzmann equation carrier mean free path carrier relaxation time electron-phonon interactions finite element analysis Galerkin method gold laser beam effects melting metallic thin films Runge-Kutta methods specific heat The physics...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. July 2009, 131(7): 071601.
Published Online: May 6, 2009
...Ravikanth S. Vajjha; Debendra K. Das This paper presents the specific heat measurements of three nanofluids containing aluminum oxide, zinc oxide, and silicon dioxide nanoparticles. The first two are dispersed in a base fluid of 60:40 by mass of ethylene glycol and water (60:40 EG/W) and the last...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. October 2008, 130(10): 104506.
Published Online: August 14, 2008
... because FC43 is characterized by low specific heat. Moreover, the velocities of the tallest miniloop are the lowest, probably because the enhancement of shear stresses overcomes the increase in buoyancy forces. For both fluids, the velocity grows almost linearly with power. Experimental data show a good...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. October 2008, 130(10): 102402.
Published Online: August 8, 2008
... 08 08 2008 nickel alloys shape memory effects specific heat thermal conductivity titanium alloys thermal conductivity thin film 3ω method shape memory effect thermal characterization microfabrication heat capacity Freestanding thin films are used in a variety...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2008, 130(8): 082401.
Published Online: May 29, 2008
... viscosity, thermal conductivity, constant-pressure specific heat, density, and molecular mean free path are proposed in power-law form and validated through experimental data. Natural convective gas flow with variable physical properties in a long open-ended vertical parallel-plate microchannel...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. June 2008, 130(6): 061601.
Published Online: April 23, 2008
...G. Venugopal; M. Deiveegan; C. Balaji; S. P. Venkateshan Transient cooling experiments of a heated vertical aluminum plate with an embedded heater, in quiescent air, were conducted for the simultaneous estimation of total hemispherical emissivity and specific heat of the plate material. During...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. February 2008, 130(2): 024502.
Published Online: February 4, 2008
.... , 2004 , Octave-based function faddeeva(z) , Version 1.0, available at http://wiki.octave.org a radius of the sphere c specific heat C heat capacitance ratio C = ρ 1 c 1 ∕ ρ 2 c 2 k thermal conductivity q...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. September 2007, 129(9): 1268–1276.
Published Online: November 16, 2006
... exchanger to the heat that would be transferred in the ideal heat exchanger. The concept of heat exchanger efficiency provides a new way for the design and analysis of heat exchangers and heat exchanger networks. 13 04 2006 16 11 2006 heat exchangers specific heat irreversible...