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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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THE THERMO-HYDRODYNAMICS OF A CONCENTRIC OHMIC HEATER FOR PROCESSING DAIRY FLUIDS
H.J. Tham, Department of Chemical & Materials Engineering, University of Auckland, New Zealand
X.D. Chen, Department of Chemical Engineering, Monash University, Australia
B. Young, Department of Chemical & Materials Engineering, University of Auckland, New Zealand
B. Bansal, Department of Chemical & Materials Engineering, University of Auckland, New Zealand
L. Zhang, Department of Chemical & Materials Engineering, University of Auckland, New Zealand
G. Duffy, Department of Chemical & Materials Engineering, University of Auckland, New Zealand
ABSTRACT:
The thermo-hydraulic performance of a 300W
concentric annular ohmic heater was investigated. To
minimize possible electrochemical reactions and corrosion,
a higher frequency was applied and factors of field strength
and frequency were studied. 2D computer simulation
solving momentum, thermal and electrical energy was
performed using the FlexPDE software. A good agreement
between experimental and analytical analysis of static
heating was obtained. There were significant differences
between calculated and measured wall temperature near the
entrance. The calculated outlet temperature was however in
reasonable agreement with the experiment value.
H.J. Tham, X.D. Chen, B. Young, B. Bansal, L. Zhang, and G. Duffy, "THE THERMO-HYDRODYNAMICS OF A CONCENTRIC OHMIC HEATER FOR PROCESSING DAIRY FLUIDS" 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/heatexchanger2007/22
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