Measurements of the Thermal Conductivity and Thermal Diffusivity of Liquids. Part II: “Convective and Radiative Effects”

Abstract

The second part (Part II) of this work is concerned with coupling in the transient regime of conduction with convection and radiation in the experimental bench developed and presented in Part I for the measurement of the thermal conductivity and thermal diffusivity of fluids by an impulse technique. The first section will analyze heat transfer in the liquid by conduction and convection. This will help to define the optimal extension of the measuring cell to reduce the influence of natural convection for the case of impulse heat flux stimulation. The second section is about coupled conductive–radiative heat transfer and will show how to deal with radiative effects in the problem of parameters estimation.