Document Type


Date of Award

Spring 5-31-1962

Degree Name

Master of Science in Chemical Engineering - (M.S.)


Chemical Engineering

First Advisor

Jerome J. Salamone

Second Advisor

Joseph Joffe

Third Advisor

C. L. Mantell


The use of various published correlations to determine apparent thermal conductivities was found to give results of differing ma; magnitudes. For this reason when these values were utilized in the theoretical relationships proposed by McAdams:

tw-t2/tw-t1 = 0.692e-23.14X + 0.1312e-121.9X + 0.0535e-299.6X

in which X is defined as

X = (KaL/CpGoD2t)

For packed bed systems the results were found to be inconsistent.

In this investigation a dimensionless equation:

Ka/kg = 0.00105 (DpGo/ϵpμ)1.32

has been developed which permits the prediction of apparent thermal conductivities to air flowing through a 1 inch tube picked with glass beads. The equation gives satisfactory results for ratios of Dp/Dt from 0.15 to 0.22 and a modified Reynolds number of 526 to 3990.

The effect of voids in the packing material was studied and a porosity was included in the modified Reynolds number used in correlating the data.