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Keywords: thermal conductivity
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Proceedings Papers

Proc. ASME. MNHMT2019, ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer, V001T02A002, July 8–10, 2019
Paper No: MNHMT2019-3980
...Abstract Abstract The present work in nanofluids is focusing into using the electro-kinetic phenomenal occurring around nanoparticles immersed in a base fluid as a method to stabilize a nanofluid and enhance its thermal conductivity. The electro-kinetic physic establishes, that when...
Proceedings Papers

Proc. ASME. MNHMT2019, ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer, V001T10A001, July 8–10, 2019
Paper No: MNHMT2019-3901
... to the variations of film thickness, distribution of temperature, and phonon transport frequency are all included in the physic based model. Phonon energy and effective thermal conductivity distributions are shown in the two-dimensional (2D) space. The spatial distributions of temperatures and thermal...
Proceedings Papers

Proc. ASME. MNHMT2019, ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer, V001T10A005, July 8–10, 2019
Paper No: MNHMT2019-4087
...INVESTIGATION ON THERMAL CONDUCTIVITY AND VISCOSITY OF THIN WATER FILM BY MOLECULAR DYNAMICS SIMULATION Lu Jin, Leping Zhou1 School of Energy, Power and Mechanical Engineering, Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education, North China...
Proceedings Papers

Proc. ASME. MNHMT2019, ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer, V001T09A002, July 8–10, 2019
Paper No: MNHMT2019-3911
...*Corresponding Author: chen_hs@iet.cn A METHOD FOR MEASURING THERMAL CONDUCTIVITY OF LOW-DIMENSIONAL MATERIALS BASED ON DC HEATING Xiao Yang1,2, Xinghua Zheng1,2, Zheng Yang1, Liang Wang1,2, Haisheng Chen1,2* 1 Institute of Engineering Thermophysics, CAS, No.11 Beisihuanxi Road, Beijing, 100190...
Proceedings Papers

Proc. ASME. MNHMT2019, ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer, V001T09A004, July 8–10, 2019
Paper No: MNHMT2019-4029
...Abstract Abstract Polymers have been widely used due to low cost, light weight, chemical inertness and easy of processing. However, bulk polymers are usually considered as thermal insulators owing to their low thermal conductivity. In this paper, the 3D polyethylene (PE) structure based...
Proceedings Papers

Proc. ASME. MNHMT2013, ASME 2013 4th International Conference on Micro/Nanoscale Heat and Mass Transfer, V001T10A007, December 11–14, 2013
Paper No: MNHMT2013-22269
... thermal contact condition when the thermal pulse propagates towards a substrate material with low thermal conductivity value. The results also indicate that the thermo-physical properties of substrate material have more pronounced effects on the temperature distributions than heat flux and temperature...
Proceedings Papers

Proc. ASME. MNHMT2012, ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer, 283-290, March 3–6, 2012
Paper No: MNHMT2012-75049
... extraordinarily high thermal conductivity along the heat transport direction, and controllable stiffness to conform to surfaces with different roughness and hardness, greatly improving the overall heat transfer performance. In addition, vertically connected solder layers can lock the graphite layers in place...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 1, 555-560, December 18–21, 2009
Paper No: MNHMT2009-18406
.... The statistical analysis indicates that the Brownian motion of nanoparticles play important role in thermal properties of the copper nanofluids. Including the Brownian motion, the thermal conductivity of the copper nanofluids is calculated. Copper nanofluids Speckle Statistical analysis Brownian motion...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 1, 491-496, December 18–21, 2009
Paper No: MNHMT2009-18260
... 18 10 2010 Al 2 O 3 -water nanofluids containing low volume concentrations (0.1–0.5 vol. %) of Al 2 O 3 nanoparticles with 40nm and 65nm average particle size were produced using a two-step method with ultrasonication and without any surfactant. The thermal conductivities...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 1, 441-447, December 18–21, 2009
Paper No: MNHMT2009-18148
... 18 10 2010 The colloidal dispersion of solid nanoparticles (1–100nm) has been shown experimentally to be an effective way to enhance the thermal conductivity of heat transfer fluids. Moreover, large particles (micrometers to tens of micrometers) of phase-change materials have long been...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 1, 507-513, December 18–21, 2009
Paper No: MNHMT2009-18275
... to calculate the thermal conductivity of argon suspension containing aluminum nanoparticles. The numerical method is verified by comparing the numerical results with the existing numerical results and the experimental data of the base fluid. The influence of various nanoparticle loadings is obtained...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 2, 483-486, December 18–21, 2009
Paper No: MNHMT2009-18008
... Monte Carlo model is used to study the roughness effects on lattice thermal conductivity of silicon nanowires. Based on the Matthiessen’s rule, a roughness influence coefficient is adopted to amend the relaxation time. Individual silicon nanowires growing by vapour-liquid-solid method...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 2, 383-389, December 18–21, 2009
Paper No: MNHMT2009-18076
... MNHT2009-18076 INFLUENCE OF WATER DISTRIBUTION AND EVOLUTION ON MEASUREMENT ACCURACY OF UNCONSOLIDATED POROUS MEDIA THERMAL CONDUCTIVITY Mingzhi Yu School of Thermal Engineering, Shandong Jianzhu University Jinan 250101, China Yuwang Liu School of Thermal Engineering, Shandong Jianzhu University...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 2, 507-511, December 18–21, 2009
Paper No: MNHMT2009-18063
... Thermal conductivity of (5,5) and (3,3) carbon nanotubes with Stone-Wales (SW) defects is investigated by molecular dynamics simulation. Non-equilibrium molecular dynamics method is employed and the reactive empirical bond order potential is chosen. In the simulation, the temperature difference...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3, 111-117, December 18–21, 2009
Paper No: MNHMT2009-18182
... of the heat flux to the temperature gradient by MD simulations or experiments is only the apparent thermal conductivity (ATC); which is smaller than the intrinsic thermal conductivity (ITC). The existing experimental data of single-walled CNTs under the high-bias current flows are applied to study the non...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3, 279-282, December 18–21, 2009
Paper No: MNHMT2009-18414
...MNHMT2009-18414 THE INFLUENCE OF EDGE STRUCTURE ON THE THERMAL CONDUCTIVITY OF GRAPHENE Kedong Bi, Yunfei Chen, Yujuan Wang, Minhua Chen School of Mechanical Engineering and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3, 643-652, December 18–21, 2009
Paper No: MNHMT2009-18553
..., while others report no enhancement or a deleterious effect on heat transfer when applying nanoparticles in the working fluids. In the current work, the thermal conductivity and kinematic viscosity of aqueous alumina nanofluids are measured at concentrations of 0 vol%, 0.05 vol%, 0.5 vol%, 1 vol...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3, 231-236, December 18–21, 2009
Paper No: MNHMT2009-18339
... We theoretically find that embedding silicide nanoparticles in Si x Ge 1- x alloys is able to considerably improve the figure of merit ( ZT ). We have computed the thermal conductivity as a function of the sizes of NiSi 2 and CoSi 2 nanoparticles. We find that the optimal nanoparticle...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3, 125-129, December 18–21, 2009
Paper No: MNHMT2009-18208
...MNHMT2009-18208 The Effects of Different Doping Pattern On the Lattice Thermal Conductivity of Solid Ar Yanyan Zhao1, Yunfei Chen1,2, Kedong Bi1,2, Zan Wang1, Yanyan Ge1, and Jiapeng Li1 1 School of Mechanical Engineering, Southeast University, Nanjing, 211189, China 2 Key Laboratory of MEMS...
Proceedings Papers

Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3, 483-487, December 18–21, 2009
Paper No: MNHMT2009-18410
... of 10°C/min. The change of density of above solutions with temperature was determined by using a straw that can reveal the volume change of solutions. The thermal conductivity was calculated based on the experimental data. A device that can be used to measure the thermal conductivity of vitrification...