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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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INVESTIGATION OF FOULING PROCESS FOR CONVECTIVE HEAT TRANSFER IN AN ANNULAR DUCT
Y.C. Chen, The Education Ministry Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
Z.H. Quan, The Education Ministry Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
C.F. Ma, The Education Ministry Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
ABSTRACT:
Experimental and theoretical study is summarized of
fouling process on heat transfer surface. An automatic
monitoring system was set up to determine impact of
fouling. Experiments were performed with artificial hard
water as a working fluid at different conditions. Some
important parameters including water temperature, wall
temperature, flow velocity, water hardness and alkalinity
were testified to make sure their influences on the fouling
process on heat transfer surfaces. The ranges of water
temperature, wall temperature, flow velocity and water
hardness are between 20～50℃, 50～75℃, 0.5～2.0m/s,
200 ～ 1000mg/L (as CaCO3), respectively. All the
experimental data were recorded continuously and the
fouling resistances were calculated accordingly.
Furthermore, an analysis was conducted to understand
mechanism of fouling on heat transfer surface according a
new physical model of fouling process. Good agreements
can be observed between calculated results and
experimental data.
Y.C. Chen, Z.H. Quan, and C.F. Ma, "INVESTIGATION OF FOULING PROCESS FOR CONVECTIVE HEAT TRANSFER IN AN ANNULAR DUCT" 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/heatexchanger2007/30
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