Abstract Fins are extended surfaces to increase convection heat transfer. Conventional fins made of solid metals and alloys. Liquid such as sodium have melting points below atmospheric temperature. lower specific heats higher thermal diffusivity when compared metals. These properties can be used in enhancing In the present work, a numerical model is developed for analyzing effect capsulating li...

When attempts are made to interpret the solid-liquid transition in terms of molecular structure, highly significant information can emerge from phemomena of pre-melting and pre-freezing. Empirically, on approaching the transition between solid and liquid, characteristic parameters of the phase under examination may show an accelerated rate of change, in the sense of a premonition of the change ...

in this study, a temperature-dependent of the dispersion coefficients is calculated from equation state.the lennard-jones lj (12-6-3) effective pair potential function and simple thermodynamic argumentwith the input pvt data of liquid metals are used to calculate the dispersion coefficients. the dispersioncoefficients ( , , ) 3 6 12 c c c are found to be a linear function of 1/t1+α , where t is...

An experimental study of the normal spectral emissivity technical nickel, palladium and platinum in solid polished liquid phases near melting points was carried out by radiation method. The emission measurement recorded bandwidth applied narrowband filters. dependence metal on wavelength range spectrum 0.26-10.6 μm is obtained. A comparative analysis with literature data other authors out. theo...

Synchrotron x-ray radiography has been used to measure the viscosity of pure liquid Fe at high pressure and temperature in a large volume press. A probe sphere rising through liquid Fe at high pressure and temperature is imaged, in situ, allowing for the derivation of sample viscosity through a modified form of Stokes’ equation. The effect of pressure on viscosity is fit by the semi empirical f...