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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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EXPERIMENTAL INVESTIGATION OF CRYSTALLIZATION FOULING ON GROOVED STAINLESS STEEL SURFACES DURING CONVECTIVE HEAT TRANSFER
A. Al-Janabi, Institute for Thermodynamics and Thermal Engineering (ITW), University of Stuttgart, Pfaffenwaldring 6, D-70550, Stuttgart, Germany
M.R. Malayeri, Institute for Thermodynamics and Thermal Engineering (ITW), University of Stuttgart Pfaffenwaldring 6, D-70550, Stuttgart, Germany
H. Müller-Steinhagen, Institute for Thermodynamics and Thermal Engineering (ITW), University of Stuttgart Pfaffenwaldring 6, D-70550, Stuttgart, Germany & Institute for Technical Thermodynamics, German Aerospace Centre (DLR), Pfaffenwaldring 38-40, D-70569, Stuttgart, Germany
ABSTRACT:
The beneficial aspects of enhanced or extended heat
transfer surfaces may be off-set if operated under fouling
conditions. In the present paper, preliminary experimental
results for crystallization fouling of CaSO4 solutions onto
surfaces with different structures are reported. Flat stainless
steel plates (50 mm x 59 mm) with 'V' shaped grooves on
the side of fluid flow were used as heat transfer surfaces.
Experiments were carried out both under clean and fouling
conditions to discern how the same surface structures
perform under such circumstances. In addition, the impact
of both, the direction of grooves with respect to fluid flow
(crossed, longitudinal and mixed flow grooves) and the
groove dimensions has also been investigated. Fouling
trends are discussed in terms of delay time and fouling rate.
Significant differences have been found for the various flow
conditions.
A. Al-Janabi, M.R. Malayeri, and H. Müller-Steinhagen, "EXPERIMENTAL INVESTIGATION OF CRYSTALLIZATION FOULING ON GROOVED STAINLESS STEEL SURFACES DURING CONVECTIVE HEAT TRANSFER" 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/heatexchanger2007/28
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