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1. A TECHNIQUE FOR PREDICTING
CONDUCTIVITY OF
SUSPENSIONS

3. G. The Writers’ equations [l] can be expressed as A. k, > k,.

4. A number of studies f2-133 has been conducted to develop techniques
for predicting the thermal conductivity of heterogeneous systems.

5. shown in Table 5 (A). None of these methods predict a consistently
satisfactory result. In general, as the ratio of k,Jkc increases, the per-
centage of deviation from the measured value of thermal conductivity
increases.

6. seen equation (12) predicts almost the same values as equation (11).
Equation (12) is not a function of k,, as can be seen. Thus the thermal
conductivity of the discontinuous phases is insignificant in comparison
to the conductivity of the mixture in Class II mixtures. Equations (11)
and (12) give acceptab