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ICHMT DIGITAL LIBRARY ONLINE

ISSN 961-91393-0-5

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Year 2004

• 3Thermal Sciences 2004
Proceedings of The ASME - ZSIS International Thermal Science Seminar II, Bled, Slovenia, June 13-16, 2004

1032 pages

Volume price - $246.00

Mechanistic models for pool nucleate boiling heat transfer: input and validation

David Kenning
London South Bank University; University of Oxford, UK,

Iztok Golobic
Faculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, Ljubljana, 1000, Slovenia

Huijuan Xing
University of Oxford, UK

Matej Baselj
Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana, Slovenia

Vito Lojk
University of Ljubljana, Slovenia

Jost von Hardenberg
CIMA, University of Genova, Italy

ABSTRACT

Correlations for nucleate boiling heat transfer should be improved, and eventually replaced, by the development of mechanistic simulations that include the non-uniform spacing and variable characteristics of the nucleation sites and nonlinear interactions between the sites. This paper discusses the interactions that should be included in simulations and some lessons from a first attempt to validate a particular simulation against experimental spatio-temporal data for wall temperature. Input data for nucleation site positions and characteristics are a particular problem and the prospects for obtaining this data from measurements that are independent of boiling are discussed.