With emphasis on thermal losses from internally heated equipment in process applications, the results of conjugate heat and mass transfer modeling are presented for a category of Stefan flow involving vaporization in a semi-permeable heterogeneous media. The model simulates the initial stages of the drying process for wet, partially saturated insulation material abutting heated equipment. Dimensionless forms of the governing equations constitute the model basis for a transient, one-dimensional problem abstraction. Numerical solutions are obtained using finite-difference techniques. Model results are presented to demonstrate drying rate variation at high heat rates in the materials of interest to the applications. Summary results include drying rate, saturation distribution, and fluid velocity profiles with comparison of observed drying front penetration depth to existing literature.
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ASME 2005 Power Conference
April 5–7, 2005
Chicago, Illinois, USA
Conference Sponsors:
- Power Division
ISBN:
0-7918-4182-0
PROCEEDINGS PAPER
Transient Stefan Flows at Wet and Heated Equipment Boundaries
Luca J. Gratton
Luca J. Gratton
Venice, CA
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Luca J. Gratton
Venice, CA
Paper No:
PWR2005-50139, pp. 981-986; 6 pages
Published Online:
October 27, 2008
Citation
Gratton, LJ. "Transient Stefan Flows at Wet and Heated Equipment Boundaries." Proceedings of the ASME 2005 Power Conference. ASME 2005 Power Conference. Chicago, Illinois, USA. April 5–7, 2005. pp. 981-986. ASME. https://doi.org/10.1115/PWR2005-50139
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