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Keywords: thermal conductivity
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Proceedings Papers

Proc. ASME. IMECE2020, Volume 3: Advanced Materials: Design, Processing, Characterization, and Applications, V003T03A026, November 16–19, 2020
Paper No: IMECE2020-23698
... conductor compared with copper on a weight basis, ultra-conductive copper (UCC) can outperform copper on both volume and weight bases. advanced conductors electrical conductivity thermal conductivity ampacity joule heating carbon nanotube graphene ultra-conductive copper NUMERICAL SIMULATION...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 3: Advanced Materials: Design, Processing, Characterization, and Applications, V003T03A035, November 16–19, 2020
Paper No: IMECE2020-23931
... benefit from the use of efficient cooling media. Industrial coolants i.e. water, ethylene glycol (EG), or mineral oils have long been used for heat transport though the low thermal conductivity (TC) of these coolants has made them inefficient options for high-performance operations. Metal nanofluids can...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 11: Heat Transfer and Thermal Engineering, V011T11A007, November 16–19, 2020
Paper No: IMECE2020-24049
... a numerical analysis for any system is to set up the correct analysis model. In this paper, a method for obtaining the coefficient of thermal conductivity and specific heat capacity of a PCB which has generally a complex composite layup structure composed of conductive layers, and dielectric layers...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 11: Heat Transfer and Thermal Engineering, V011T11A049, November 16–19, 2020
Paper No: IMECE2020-24572
... Abstract The Raman optothermal technique has been the most successful method for measurement of thermal conductivity of two dimensional (2D) materials, and was used to measure the thin films for the first time in this work. In this technique, a laser is focused at the center of a thin film...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 2A: Advanced Manufacturing, V02AT02A017, November 16–19, 2020
Paper No: IMECE2020-23102
... Abstract In the recent years, nanofluids embarked as a new class of fluids with improved thermophysical properties such as thermal conductivity, thermal diffusivity, viscosity, and convective heat transfer coefficients thus promoting better heat transfer. Nanofluids consists of two-phase system...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 3: Advanced Materials: Design, Processing, Characterization, and Applications, V003T03A013, November 16–19, 2020
Paper No: IMECE2020-24597
..., 10,000 V/m, and 20,000 V/m over the 2D material. Furthermore, an analysis on the effect of strain on the thermoelectric properties of SnSe is conducted. thermoelectric nanomaterials phononics phase-transition materials 2D material tin selenide thermopower thermal conductivity three-phonon...
Proceedings Papers

Proc. ASME. IMECE2019, Volume 6: Energy, V006T06A082, November 11–14, 2019
Paper No: IMECE2019-11027
... the thermal conductivities for the aforementioned fuels at several sample lengths and at defect concentrations of 0.1%, 1%, and 5%. The results show that alterations to the lattice structures of these fuels reduce their thermal conductivities significantly. For example, oxygen interstitial defects...
Proceedings Papers

Proc. ASME. IMECE2019, Volume 6: Energy, V006T06A051, November 11–14, 2019
Paper No: IMECE2019-12005
... of varying pile sizes and grout backfill material thermal conductivity on the performance of a foundation pile ground heat exchanger is numerically modelled and optimized. Piles with diameters between 0.15 m and 2 m with a depth of 30 m, and backfill material with thermal conductivities of 2.0 W/mK and 3.6 W...
Proceedings Papers

Proc. ASME. IMECE2019, Volume 12: Advanced Materials: Design, Processing, Characterization, and Applications, V012T10A045, November 11–14, 2019
Paper No: IMECE2019-10960
... Abstract Most of the predictive models for thermal conductivity of composites are derived based on the assumption that the filler concentration in the matrix is dilute. This assumption leads to inaccurate predictions when filler concentration is essentially non-dilute and hence there is a need...
Proceedings Papers

Proc. ASME. IMECE2019, Volume 12: Advanced Materials: Design, Processing, Characterization, and Applications, V012T10A059, November 11–14, 2019
Paper No: IMECE2019-11556
... Abstract PolyJet printing technology allows building polymeric materials with complex multi-material structures in the resolution of tens of microns layer thickness providing high control over the entire 3-D part. On the other hand, thermally conductive polymer/CNF nanocomposite materials offer...
Proceedings Papers

Proc. ASME. IMECE2019, Volume 12: Advanced Materials: Design, Processing, Characterization, and Applications, V012T10A054, November 11–14, 2019
Paper No: IMECE2019-12053
... transient plane source method, anisotropic thermal conductivity properties were evaluated. An in-plane and through-plane thermal conductivity of 0.87 W/mK and 0.58 W/mK was achieved with the addition of 6 wt% GNP, which is a nearly twofold and over fourfold increase compared to neat PLA, respectively...
Proceedings Papers

Proc. ASME. IMECE2019, Volume 8: Heat Transfer and Thermal Engineering, V008T09A080, November 11–14, 2019
Paper No: IMECE2019-11781
... Abstract Nanofluids have become the subject of theoretical and experimental researches over the few decades due to their enhanced heat transfer performance. In this study, thermal conductivity of copper argon nanofluids is determined through MD simulation. Different types of nanoparticles based...
Proceedings Papers

Proc. ASME. IMECE2013, Volume 8C: Heat Transfer and Thermal Engineering, V08CT09A012, November 15–21, 2013
Paper No: IMECE2013-63558
... nanofluids thermal conductivity viscosity equilibrium molecular dynamics Green-Kubo method Nanofluids are new class of fluids which can be used for many engineering applications due to their enhanced thermal properties. The macroscopic modeling tools used for flow simulations usually...
Proceedings Papers

Proc. ASME. IMECE2013, Volume 8C: Heat Transfer and Thermal Engineering, V08CT09A071, November 15–21, 2013
Paper No: IMECE2013-66507
... Thermal conductivity PMMA Transient Thermo-Reflectance Thermal Resistance Thin films As technology progresses towards smaller and higher density microelectronic devices, we are faced with working with atomic-scale dimensions that present us with challenges but also opportunities. Since...
Proceedings Papers

Proc. ASME. IMECE2013, Volume 10: Micro- and Nano-Systems Engineering and Packaging, V010T11A021, November 15–21, 2013
Paper No: IMECE2013-66419
... conductivity. In this study, we investigate the thermal conductivity of composites consisting of a combination of exfoliated graphene nanoplatelet (xGNP) and aluminum nitride (AlN) particles in polyvinylidine fluoride (PVDF) matrix. The surfaces of the AlN particles are treated with silane to reduce...
Proceedings Papers

Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 817-824, November 9–15, 2012
Paper No: IMECE2012-89382
... 1 Copyright © 2012 by ASME HEAT INSULATING MATERIALS THERMAL CONDUCTIVITY DETERMINATION BY MEANS OF COMPARISON WITH A STANDARD PLATE OF KNOWN CONDUCTIVITY Chyouhwu Brian Huang Hung-Shyong Chen Department of Mechanical Engineering, Cheng Shiu University Kaohsiung, Taiwan Department of Mechanical...
Proceedings Papers

Proc. ASME. IMECE2012, Volume 9: Micro- and Nano-Systems Engineering and Packaging, Parts A and B, 1101-1112, November 9–15, 2012
Paper No: IMECE2012-88747
... This work discusses the use of a non-contact, non-invasive and in-situ measurement approach for determining the thermal conductivity of thin films used in the microelectronics industry, along with the interface thermal resistance between the films. The approach is based on the thermoreflectance...
Proceedings Papers

Proc. ASME. IMECE2011, Volume 10: Heat and Mass Transport Processes, Parts A and B, 437-444, November 11–17, 2011
Paper No: IMECE2011-64148
... to determining the convective heat transfer coefficients, this study also included experimental determination of thermophysical properties of [C 4 mmim][NTf 2 ] such as, density, viscosity, heat capacity, and thermal conductivity. The results show that the density of [C 4 mmim][NTf 2 ] varies from 1.437–1.396 g...
Proceedings Papers

Proc. ASME. IMECE2010, Volume 11: New Developments in Simulation Methods and Software for Engineering Applications; Safety Engineering, Risk Analysis and Reliability Methods; Transportation Systems, 55-60, November 12–18, 2010
Paper No: IMECE2010-40615
... meshless method is presented for analysis of heat transfer, temperature distribution and steady-state effective thermal conductivities of fiber-matrix type of composite materials. Because the domain integration is eliminated in the presented meshless formulation, the computational efforts in presented...
Proceedings Papers

Proc. ASME. IMECE2010, Volume 5: Energy Systems Analysis, Thermodynamics and Sustainability; NanoEngineering for Energy; Engineering to Address Climate Change, Parts A and B, 1457-1464, November 12–18, 2010
Paper No: IMECE2010-38187
... A steady-state, parallel-plate thermal conductivity (PPTC) apparatus has been developed and used for comparative measurements of complex POLY-nanofluids, in order to compare results with the corresponding measurements using the transient, hotwire thermal conductivity (HWTC) apparatus...