... of thermodynamics, thermal resistance (R th ) is used to investigate the resistance of any configuration to flow of heat comparing at same pumping power. Moreover, the second law of thermodynamics is applied to quantify the rate of entropy generation ( S ˙ gen ) and transport efficiency ( η t ) for MCHS...

... of CPUs can be controlled to about 51 °C even at condenser-cooling wind temperature of 30 °C with wind flowrate of 41.88 m 3 /h. For air-cooling LHP, its condenser design is more crucial compared to water-cooling LHP, with respect to the thermal resistance of condenser far higher than other parts...

... Abdulaziz University (Grant No. 135-005-D1433; Funder ID: 10.13039/501100004054). 13 11 2018 14 08 2019 30 10 2019 hollow bricks natural convection in enclosures partitioned cavities numerical simulation finite volume method thermal resistance Summer outdoors...

... ) to form FP-OHP. DI water, ethanol, methanol, acetone, and FC-72 are investigated. The measured thermal resistance was strongly dependent on operational parameters. The optimum performance was observed with acetone with a charge ratio of 70% in the vertical orientation. The lowest thermal resistance...

... performance of mLHP. The minimum thermal resistance was found to be 0.38 °C/W with an acceleration rate of 4 g at a vibration frequency of 25 Hz (at a heat load of 120 W). The low-frequency vibration improves the mLHP performance under the longitudinal vibration loading. At higher heat loads, changing...

..., of surface area 150 × 420 mm 2 , and at lowering its mean temperature by transferring the heat to an adjacent heat sink of same dimensions. The PHP thermal resistance is measured at various heat transfer rates, condenser temperatures, and inclination angles. It decreases when the heat transfer rate increases...

... of galinstan is about half that of water and its viscosity is 2.5 times that of water, caloric, rather than convective, resistance is dominant. We analytically investigate the effect of using structured surfaces (SSs) to reduce the overall thermal resistance of galinstan-based microgap cooling in the laminar...

... the behavior of effective thermal resistances were well understood. Although, one should keep in mind that it was not possible to reduce R g in the I shaped link to one forth by the V shaped design because of the change in location of T max . However, this objective can still be accomplished by another...

... of the ( k I j / k M ) ratio was outside this range. Nomenclature Q " = heat flux, heat transfer rate per unit area (W/m 2 ) R I = thermal resistance of interface (m 2 K/W) R M = thermal resistance of bulk middle-plate (m...

..., 2013. Assoc. Editor: Andrey Kuznetsov. 12 03 2012 06 10 2012 A sensitivity analysis is conducted to estimate the effect of the pore distribution on the heat transfer and the thermal resistances. Table 3 gives the results of the analysis, carried out by varying the pore diameter...

... for the measurement of the overall thermal resistance of unit area for a metallic interconnect while in quasi-steady operation. Pump-probe measurements will continue to show temporal speed advantage beyond the capability of wide view measurements. This is an essential requirement of an experiment to assess in situ...

... , “ Measurement and Evaluation of the Interfacial Thermal Resistance Between a Metal and a Dielectric ,” Appl. Phys. Lett. , 93 ( 23 ), p. 231910 . 10.1063/1.3039806 4 Hopkins , P. E. , and Norris , P. M. , 2007 , “ Substrate Influence in Electron–Phonon Coupling Measurements in Thin Au...

... showed that applying the magnetic field on the water-based ferrofluid reduced the thermal resistance of PHP in all orientations. In the presence of a magnetic field, the best thermal performance was achieved at the higher charging ratios (70%) in all orientations. References 1 Akachi , H...

...A. Tamayol; K. Hooman Using a thermal resistance approach, forced convection heat transfer through metal foam heat exchangers is studied theoretically. The complex microstructure of metal foams is modeled as a matrix of interconnected solid ligaments forming simple cubic arrays of cylinders...

... ions. On the tube surface, corrosion produces a nonconductive layer which represents additional thermal resistance to the heat transfer. Comparison of daily averaged fouling resistance of Solutions 1 and 2, and DIW The fouling resistance–time curves of all tested solutions, Solutions 1–2...

...J. Ordóñez-Miranda; J. J. Alvarado-Gil In this work, transient heat transport in a flat layered system, with interface thermal resistance, is analyzed, under the approach of the Cattaneo–Vernotte hyperbolic heat conduction model using the thermal quadrupole method. For a single semi-infinite layer...

... geometry of a complex assembly of fins, i.e., an assembly where there is a cavity between the two branches of the T-Y-assembly of fins and two additional extended surfaces. The global thermal resistance of the assembly is minimized four times by geometric optimization subject to the following constraints...

... OHP had a much lower thermal resistance than the DI water OHP with the most effective heat transfer in the nanofluid OHP occurring in the slug flow regime. 23 12 2009 26 10 2010 02 02 2011 02 02 2011 CCD image sensors evaporation flow visualisation heat pipes heat...

... transfer coefficients. Pressure drop measurements are correlated with the Darcy–Forcheimer relation. Empirical heat transfer correlations for the aluminum and carbon foam samples are provided. Using a hypothetical heat exchanger considering only the thermal resistance between the ambient air and the outer...

... predictions have demonstrated a very good comparison with previously published experimental data. By adding a radiative resistance to the model, improved performance predictions of overall thermal resistance/conductance were possible, leading to the extension of single layer analytical model to multiple...