Abstract
Longitudinal thermal conductivity data were obtained experimentally by means of the frequency response technique.Water flowing in packed beds were studied, too, because of the scarcity of data on liquids. Glass, steel, hollow celluloid spheres and quartz sand were used as packings, and kL, kL values were obtained as a function of (Re)p.The data gave average Peclet number (Pe)h of about 1.0.For the purpose of comparison of the thermal conductivity with diffusivity, measurements of longitudinal diffusivity were carried out by using residence-time curves.The results indicate that longitudinal thermal conductivity and diffusivity depend on the similar longitudinal mixing of fluids.
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