Positional accuracy of the machine tool is affected by the instabilities caused by the thermal gradients produced from the internal and external heat sources. Thermal gradients cause linear and non linear thermal expansions of the complex machine parts which result in the generation of the positional error between the tool and the work piece affecting the machining accuracy. Thermal gradients d...

An analytic model for optimizing thermoelectric power generation system is developed and utilized for parametric studies. This model takes into account the external thermal resistances with hot and cold reservoirs. In addition, the spreading thermal resistance in the module substrates is considered to find the impact of designing small fraction of thermo elements per unit area. Previous studies...

Heat transfer enhancement has always been the main purpose in designing heat exchangers various industrial applications. In addition, nanofluids have shown potential as cooling fluids due to enhanced characteristics particularly exchanger Whilst enhancing using nanofluids, there is a trade-off of causing higher irreversibility and pressure drop. Therefore, order better view thermal performances...

Thermal wave inspection techniques utilise controlled heat diffusion to probe the surface and subsurface structure of a component [1-3]. Various techniques have been developed which use localised intensity or spatially modulated laser heating for thermal wave generation [2] and a variety sensors, acoustic, optical, and thermal, for their detection [3,4]. The quantitative application of these te...

the present paper was aimed to study the effects of variable thermal conductivity and heat generation on the flow of a viscous incompressible electrically conducting fluid in the presence of a uniform transverse magnetic field, thermal radiation, porous medium, mass transfer, and variable free stream near a stagnation point on a non-conducting stretching sheet. equations of continuity, momentum...

•. The effects of phase changes and strong internal heat generation may combine to bring about brief, but extremely intense pisodes of rapid thermal convection i the Earth's mantle. Numerical calculations using realistic thermodynamic properties for the exothermic Olivine --+ Spinel and endothermic Spinel ---> Perovskite + Magnesiowustite phase transitions suggest he transition region of the Ea...