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Effects of molecule number on nucleate boiling in a system

✍ Scribed by Yong Tian; Xiao-Dong Wang; Xiao-Feng Peng

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
86 KB
Volume
34
Category
Article
ISSN
1099-2871

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✦ Synopsis

Canonical molecular distribution was introduced to analyze characteristics of nucleate boiling when the liquid molecular number is very small. The minimum bulk phase volume in which phase change was able to occur was determined from the thermodynamic theory of bubble formation in a superheated liquid and from the energy distribution of the molecules in the bulk phase at a given temperature and pressure. The energy level of active molecules nearly independently distributing in systems was determined from conservation of mass. The maximum superheat temperature necessary for boiling nucleation was found to relate to the bulk phase volume with the temperature increasing as the volume decreased.

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