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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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SIMULATION OF CALCIUM PHOSPHATE DEPOSITION ON STAINLESS STEEL SURFACES: A NEW APPROACH BASED ON CELLULAR AUTOMATA
F. G. Martins, Department of Chemical Engineering, LEPAE – Laboratory for Process, Environmental and Energy Engineering, Faculty of Engineering, University of Porto, Portugal
T. Campos, Department of Chemical Engineering, LEPAE – Laboratory for Process, Environmental and Energy Engineering, Faculty of Engineering, University of Porto, Portugal
R. Rosmaninho, Department of Chemical Engineering, LEPAE – Laboratory for Process, Environmental and Energy Engineering, Faculty of Engineering, University of Porto, Portugal
L. F. Melo, Department of Chemical Engineering, LEPAE – Laboratory for Process, Environmental and Energy Engineering, Faculty of Engineering, University of Porto, Portugal
ABSTRACT:
Fouling caused by calcium phosphate upon heating is
basically a crystallization/precipitation process, which starts
with the formation of stable clusters of ions or molecules in
a process called nucleation that occurs either in the bulk
liquid or at the surface.
The cellular automata are useful tools to model
complex systems of the universe. They could be considered
as a good alternative to differential equations and have been
used to model many physical/biological systems.
In this preliminary work, a two dimensional space was
considered where the cellular automata lattice was
represented as a grid of squares, with each square
representing a single automaton cell.
Several situations were simulated, representing the
growth of the deposit on stainless steel materials for
different surface energies. The results of the simulations
were compared with experimental data obtained in the
laboratory.
F. G. Martins, T. Campos, R. Rosmaninho, and L. F. Melo, "SIMULATION OF CALCIUM PHOSPHATE DEPOSITION ON STAINLESS STEEL SURFACES: A NEW APPROACH BASED ON CELLULAR AUTOMATA" 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/heatexchanger2007/23
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