Prediction of batch heat transfer coefficients for pseudoplastic fluids ...

SI
done on the correlation of heat transfer coefficients in
agitated vessels, but that many differences or even contradictions
exist among the present correlations.
Some of
the difficulty may be due -to the problems of obtaining
accurate data..
Chilton et al. (39) report that duplicate
results for heating and cooling water have an average
deviation of 17.5 percent. Brooks and Su (~)
report reproducibili
ty of ± 20 percent for ltTater and corn syrup and
±5 percent for motor oil.. Cummings and '\tlest (49) claLm that
their correlation in 90 percent of the cases it is used will
predict the batch heat transfer coefficient l«1i thin 20 percent
of its true value.