Showing papers in "International Communications in Heat and Mass Transfer in 2018"

TL;DR: In this paper, the authors introduced the concept of activation energy in mixed convective magnetohydrodynamic (MHD) stagnation point flow towards a stretching surface and applied it to modeling and computations.

TL;DR: In this paper, an experimental investigation was performed on the thermal performance of a pulsating heat pipe by applying graphene oxide nanofluid as working fluid, which increased thermal conductivity and viscidity of the base fluid.

TL;DR: In this article, a double pipe heat exchanger with loaded Al2O3-TiO2 hybrid nanofluid in turbulent flow regimes is studied and evaluated through exergy analysis.

TL;DR: In this paper, the performance of heat sinks filled with phase change material (PCM) was investigated under a heat load of 8 to 24 W. The results revealed that base temperature of the heat sink is reduced as the volume fraction of PCM is increased.

TL;DR: In this article, the effects of Reynold's number and concentration of nanoparticles in nanofluid on heat transfer characteristics were studied and a significant enhancement in heat transfer coefficient and thermal conductivity was found in the study.

TL;DR: In this article, numerical and experimental investigations have been done on the plate heat exchanger using hybrid nanofluid (Al2O3+MWCNT/water) at different concentration to investigate its effect on heat transfer and pressure drop characteristics.

TL;DR: In this article, the performance of diesel oil using carbon-based nano additives was evaluated and thermal and electrical conductivity of nanofluids were investigated in the laboratory at temperatures of 5´°C to 100''C.

TL;DR: In this article, the effects of mass fraction and temperature on the dynamic viscosity and thermal conductivity of CuO/viscous paraffin nanofluid were studied.

TL;DR: In this paper, both experimental and computational research on the turbulent convective heat transfer to supercritical fluids is particularly active, especially because the actual poor comprehension and prediction of the possible heat transfer deterioration is limiting the design of new promising engineering applications.

TL;DR: In this paper, the potential application of a liquid metal enriched with aluminum oxide nanoparticles in a microchannel was investigated, which can have further applications in designing the next generation of solar thermal receivers equipped with microchannel fluid passages.

TL;DR: In this article, the phase change material (PCM) was entirely solidified using the both-sides freezing, as a main method under the influence of average discharging temperature was at 65°C.

TL;DR: In this article, the authors analyzed the entropy generation and convective heat transfer in a bottom-heated wavy porous cavity containing a solid rotating cylinder, where an isothermal heater of length h is placed on the bottom wall of the cavity, while both the left and right vertical wavy walls are maintained at a constant cold temperature Tc.

TL;DR: In this paper, a double-layered microchannel heat sink design is proposed, which adopts porous fins instead of solid fins to enhance convective heat transfer, and a three-dimensional solid-fluid conjugate model is employed to compare the overall thermal resistance and pumping power of the new and original designs at Reynolds number ranging 65-200.

TL;DR: A deep learning approach combining with the traditional solid isotropic material with penalization (SIMP) method is presented in this paper to accelerate the topology optimization of the conductive heat transfer.

TL;DR: In this article, the thermal conductivity of distilled water-based CNT-SiO2 hybrid nanofluids was measured by using thermal conductivities meter calibrated by di-water.

TL;DR: In this paper, a numerical simulation on laminar forced convection flow of DI water based Al2O3 nanofluid and Al 2O3-MWCNT hybrid nano-fluid in minichannel heat sink has been performed using two-phase mixture model to investigate the heat transfer and pressure drop characteristics.

TL;DR: In this paper, the performance of microchannel heat sink with rectangular rib and triangular cavity was investigated by using a comparative analysis with related geometry such as microchannel with rectangular ribs and triangular cavities.

TL;DR: A comprehensive model was proposed to predict the nanofluids relative viscosity on the basis of feedforward back-propagation network by utilizing various training algorithm including Levenberg-Marquardt (LM), Bayesian Regulation back propagation (BR), and Resilient back Propagation (RP).

TL;DR: In this article, a comprehensive review of recent research progress on PCM-CTES and an overview of numerical and experimental studies on the heat transfer performance of different base fluid of PCMs are presented.

TL;DR: In this article, the thermal conductivity characteristics of a copper-titanium dioxide (Cu-TiO2) hybrid nanofluid and compared with those of a non-hybrid (Cu and TiO2), were investigated.

TL;DR: In this article, a three-dimensional model was constructed to numerically investigate the heat transfer and fluid flow characteristics of combined microchannel with cone-shaped micro pin fin (MCPF) for inlet Re number ranging from 147 to 637.

TL;DR: An overview of the latest developments regarding the application of nanofluids in boiling critical heat flux by means of both pool-and convective-flow boiling Boiling heat transfer is a significant field in thermal engineering systems and it is especially used for boiling in power plants as well as the cooling of nuclear reactors and high-tech electronic systems.

TL;DR: In this paper, the role of magnetic field and surface corrugation on the natural convective transfer characteristics in a three dimensional, CuO-water nanofluid filled trapezoidal cavity was numerically investigated with finite element method.

TL;DR: In this article, the authors used the mixture of titanium dioxide and water as a nanofluid and found that the addition of the titanium dioxide nanoparticles enhances the heat transfer and also found that there is an optimum concentration for maximum heat transfer.

TL;DR: In this paper, a transient hot wire method was used to measure the thermal conductivities of carbon nano-tube (CNT) aqueous solutions, and three different surfactants were compared for nanofluid dispersion.

TL;DR: In this paper, the effect of nanoparticle concentration on reduction of coolant requirement, pumping power and operating cost has been investigated in a shell and tube condenser of a 580MW nuclear power plant.

TL;DR: In this paper, the experimental results show that the heat transfer coefficient and pressure drop increase when the chevron angle is decreased and the surface roughness and Reynolds number are increased.

TL;DR: In this paper, the viscosity measurements of hybrid nanofluids were performed using capillary tube viscometer, within a temperature range of 15°C to 60°C at several volume concentrations up to 2%.

TL;DR: In this paper, a single-step electrochemical deposition technique was used to enhance the boiling heat transfer performance of saturated DI water at atmospheric pressure on copper surfaces with Cu-Al2O3 nanocomposite coatings.

TL;DR: In this paper, the authors presented a review on mechanism for improvement in vapor compression refrigeration system performance by using nanorefrigerants and nanolubricants and showed that the effect of nanore-frigors and nano-lubricants on heat transfer, refrigerant-oil mixture and tribology had increased the overall performance of VCRS with 11% compressor work reduction and 24% of COP enhancement.