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Heat Exchanger Fouling and Cleaning VII
July 1-6, 2007 - Tomar, Portugal
| Editors: |
Hans Müller-Steinhagen, Institute of Technical Thermodynamics, German Aerospace Centre (DLR)
and Institute for Thermodynamics and Thermal Engineering, University of Stuttgart, Germany
M. Reza Malayeri, University of Stuttgart, Germany
A. Paul Watkinson, The University of British Columbia, Canada |
The articles for these proceedings are peer-reviewed.
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FOULING IN A CENTRITHERM EVAPORATOR WITH WHEY SOLUTIONS
R. S. Jebson, Villa 102 166 Ruapehu Dr., Palmerston North, New Zealand
H. Chen, Fonterra Coop Dairy Co Ltd PO Box 10397 Hamilton, New Zealand
O. H. Campanella, Purdue University, West Lafayette, Illinois, USA
ABSTRACT:
Fouling caused by sweet cheese whey and
reconstituted whey powder solutions was studied in
a Centritherm evaporator, the behaviour being
estimated by measuring the change in the overall
heat transfer coefficients with the time. It was found
that there was no fouling detectable for the
reconstituted whey powder solution. For sweet
cheese whey, the fouling rate was linked strongly
with the evaporating temperature and temperature
difference. Visual observation showed that the
deposit layer on the evaporator surface was very
thin and soft, and like the type A milk deposit
described by other investigators. A high velocity
of liquid film delayed the formation of deposit on
the surface. Some interactions between the
evaporation temperature, feed flow rate, rotating
speed and temperature difference are discussed.
The fouling is caused by denaturation of bovine
serum albumin in a second order rate reaction.
R. S. Jebson, H. Chen, and O. H. Campanella, "FOULING IN A CENTRITHERM EVAPORATOR WITH WHEY SOLUTIONS" in "Heat Exchanger Fouling and Cleaning VII", Hans Müller-Steinhagen, Institute of Technical Thermodynamics, German Aerospace Centre (DLR)
and Institute for Thermodynamics and Thermal Engineering, University of Stuttgart, Germany
M. Reza Malayeri, University of Stuttgart, Germany
A. Paul Watkinson, The University of British Columbia, Canada
Eds, ECI
Symposium Series, Volume RP5 (2007). http://services.bepress.com/eci/heatexchanger2007/19
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