Heat transfer coefficients of non-Newtonian slurries in laminar flow

Author

Robert Frederick Roth, New Jersey Institute of Technology
David B. Swanson, New Jersey Institute of Technology

Document Type

Thesis

Date of Award

9-30-1961

Degree Name

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

Department

Chemical Engineering

First Advisor

Jerome J. Salamone

Second Advisor

C. L. Mantell

Third Advisor

Joseph Joffe

Abstract

A total of 51 heat transfer runs were made in the first 25 runs, slurries of half micron and finer kaolin at 3.0, 5.6, 9.6 and 12.9% solids were used. Slurries of two microns and finer kaolin at 10.1, 13.7, 20.4 and 23.1% solids were used in the remaining 26 runs.

The Reynolds Numbers ranged from 0.9 to 2,020 for the 51 runs.

The data was correlated by the following equation:

H_f/C_bV_bP_b C_bR_b/K_b ^2/3 = 0.70 DV_bP_b/R_b ^-2/3

for an L/D ratio of 68.7.

This is essentially the accepted correlation for Newtonian fluids in laminar flow. The viscosity used for the slurries investigated was the apparent bulk viscosity obtained from measurements with a Fann V-G viscometer which gave shear rate versus viscosity data. The viscosity used was that at the same shear rate present in the heat exchanger.

Recommended Citation

Roth, Robert Frederick and Swanson, David B., "Heat transfer coefficients of non-Newtonian slurries in laminar flow" (1961). Theses. 2124.
https://digitalcommons.njit.edu/theses/2124