Showing papers in "International Communications in Heat and Mass Transfer in 2005"

TL;DR: In this article, the thermal conductivities of CNT-ethylene glycol and synthetic engine oil suspensions were investigated using a modified transient hot wire method, and the results showed that CNT nanofluids have noticeably higher thermal conductivity than the base fluid without CNT.

TL;DR: In this article, the combined free convection boundary layer flow with thermal radiation and mass transfer past a permeable vertical plate was studied when the plate was maintained at a uniform temperature with uniform species concentration and the fluid was considered to be gray, absorbing-emitting.

TL;DR: In this paper, the relative effects of nanoparticle motion mechanisms of dilute suspensions, i.e., Brownian motion, thermo-phoresis and osmo-phoreis, including size dependence, on the thermal conductivity were theoretically investigated.

TL;DR: In this paper, an efficient minimization of warpage on thin shell plastic parts by integrating finite element analysis, statistical design of experiment method, response surface methodology and genetic algorithm is investigated.

TL;DR: In this paper, a fractal tree-like microchannel net heat sink for cooling of electronic chips was fabricated on a silicon wafer by advanced MEMS technology, and it was confirmed experimentally that the thermal efficiency (defined as heat transfer rate per unit power required) was much higher than that of the traditional parallel microchannel heat sink.

TL;DR: In this article, the Adomian decomposition method has been used to evaluate the efficiency of straight fins with temperature-dependent thermal conductivity and to determine the temperature distribution within the fin.

TL;DR: In this article, a nano-porous surface (Anodisc 25) of thickness about 70 μm made from aluminum oxide (Al2O3) obtained from Whatman, was compared to that of a plain surface (aluminum) with thickness about 105 μm.

TL;DR: In this paper, the heat transfer characteristics and performance of the double-pass flat plate solar air heater with and without porous media are studied numerically and the implicit method of finite-difference scheme is employed to solve these models.

TL;DR: In this article, the authors presented experimental results of a single-basin solar still using various absorbing materials, such as dissolved salts, violet dye, and charcoal, which achieved a significant increase in still efficiency and productivity.

TL;DR: In this article, an analysis to the study of the momentum, heat and mass transfer of a hydromagnetic fluid past a stretching sheet in the presence of a uniform transverse magnetic field is carried out.

TL;DR: In this article, a model for water level dynamics in the drum-riser-downcomer loop of a natural circulation drum-type boiler is presented based on basic conservation rules of mass, momentum, and energy, together with well-known constitutional equations.

TL;DR: In this article, the authors present results of an experimental study of heat transfer and friction in rectangular ducts with baffles (solid or perforated) attached to one of the broad walls.

TL;DR: In this article, the effects of the treatment number of physical water treatment on the surface tension of hard water were studied. And the results showed that the number of treatments of the PWT increased, a phenomenon that was consistent with the results in the dye flow-visualization experiment.

TL;DR: In this paper, the effects of the amplitude of the bottom wall temperature variation and the heat source length on the natural convection in the cavity are investigated for Rayleigh number range 20-500.

TL;DR: In this article, the authors studied thermo-bioconvection, a macroscopic convective motion induced in a fluid layer by the combined effect of density stratification caused by the upswimming of oxytactic microorganisms and heating from below.

TL;DR: In this paper, the authors compared heat transfer characteristics across a square cavity partially filled with a fixed amount of conducting solid material, where the solid phase is shaped into two different geometries, namely square and cylindrical rods, which are horizontally displaced inside the cavity.

TL;DR: In this article, the authors analyzed the entropy generation of the fully developed laminar convection in a helical coil with constant wall heat flux and presented the optimal design based on the minimum entropy generation principal.

TL;DR: In this article, the heat transfer by natural convection and surface thermal radiation in a tilted 2D open cavity is presented, and the results in the steady state are obtained for a Rayleigh range from 104 to 107 and for an inclination angles range of the cavity from 0° to 180°.

TL;DR: In this paper, the authors investigated the effect of heating from below on the stability of a suspension of motile gyrotactic microorganisms in a fluid layer of finite depth and found that heating makes the system more unstable and helps the development of bioconvection.

TL;DR: In this article, the authors considered turbulent heat transport modeling in porous media under the local thermal non-equilibrium assumption and proposed macroscopic time-average equations for continuity, momentum and energy.

TL;DR: In this paper, a visualization study was performed on condensation of steam in microchannels etched in a 〈100〉 silicon wafer that was bonded by a thin Pyrex glass plate from the top.

TL;DR: In this article, the authors analyzed the energy consumption and performance of reheating furnaces in a hot strip mill by means of both numerical predictions and practical measurements, and showed that the efficiencies of heat exchange and heat recovery in the recuperating zone are 86.66% and 47.76%, respectively.

TL;DR: In this paper, a general correlation for volumetric heat transfer coefficient between stream of air and open-cellular porous materials was derived utilizing experimental data obtained by several researchers, and the derived correlation is written in form of hv = (A/Ds2−n)un.

TL;DR: In this article, the effect of fin spacing on the air side performance is strongly related to the transverse tube pitch for both inline and staggered arrangements, and the proposed correlations give fairly good predictive ability against the present test data.

TL;DR: In this paper, the performance of an air standard Miller cycle with heat transfer loss and friction-like term loss was analyzed by using finite-time thermodynamics, and the relation between the power output and the compression ratio, between the thermal efficiency and compression ratio was derived.

TL;DR: In this paper, a column packing unit is fabricated from the laminated plastic plates consisting of eight layers and a mathematical model based on the conservation equations of mass and energy is developed and solved by an iterative method to determine the heat transfer characteristics of the cooling tower.

TL;DR: In this article, the authors consider the optimization of a cavity that intrudes into a solid conducting wall, having internal heat generation and adiabatic conditions on the outer surfaces.

TL;DR: In this paper, the effect of heat transfer on the motion of blood in a diseased artery has been modeled under the optically thin fluid assumption, and closed-form analytical solutions are obtained for the volume flow rate, rate of heat transferred and shear stress at the vessel wall.

TL;DR: In this paper, the results obtained from artificial neural networks are compared with those obtained using Tanks-in-series model with less percentage error, which indicates a better fit of artificial neural network to experimental data compared to various mathematical models.

TL;DR: In this article, a numerical investigation was performed to study the effect of flow pulsations on the time-averaged Nusselt number under a laminar impinging jet.