Paper Information

Journal:   INTERNATIONAL JOURNAL OF ENGINEERING   JUNE 2003 , Volume 16 , Number 2 (TRANSACTIONS A: BASICS); Page(s) 205 To 216.
 
Paper: 

AVAILABILITY ANALYSIS FOR HETEROGENEOUS NUCLEATION IN A UNIFORM ELECTRIC FIELD

 
 
Author(s):  SAEIDI M.H., MORADIAN A.
 
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Abstract: 
Industrial demands for more compact heat exchangers are a motivation to find new technology features. Electrohydrodynamics (EHD) is introduced as a promising phenomenon for heat transfer enhancement mechanisms. Similar to any new technology, EHD has not been understood completely yet and requires more fundamental studies. In boiling phase change phenomena, nucleation is the dominant mechanism in heat transfer. Because of higher performance in heat transfer, nucleate boiling is considered as the main regime in thermal components. Hence, bubble dynamic investigation is a means to evaluate heat transfer. This study investigates bubble formation, including homogeneous and heterogeneous nucleation, from a thermodynamic point of view. Change in availability due to bubble embryo nucleation is discussed. Stability criteria these systems are theoretically studied and results are discussed considering experimental data. In addition, a conceptual discussion on entropy generation in a thermodynamic system under electric field is presented.
 
Keyword(s): AVAILABILITY ANALYSIS, NUCLEATION, HETEROGENEOUS, ELECTRIC FIELD
 
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