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The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title: Heat transfer coefficients of non-Newtonian slurries in laminar flow
Author: Roth, Robert Frederick
View Online: njit-etd1961-005
(vi, 52 pages ~ 12.5 MB pdf)
Department: Department of Chemical Engineering
Degree: Master of Science
Program: Chemical Engineering
Document Type: Thesis
Advisory Committee: Salamone, Jerome J. (Committee chair)
Mantell, C. L. (Committee member)
Joffe, Joseph (Committee member)
Date: 1961-09
Keywords: Slurry
Fluids
Heat -- Transmission
Availability: Unrestricted
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:

Hf/CbVbPb CbRb/Kb 2/3 = 0.70 DVbPb/Rb -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.


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