The following information was submitted:
Transactions: INTERNATIONAL JOURNAL of ENERGY and ENVIRONMENT
Transactions ID Number: 20-436
Full Name: Ioan Sârbu
Position: Professor
Age: ON
Sex: Male
Address: Piata Bisericii, no. 4A, ap.3, 300233 Timisoara
Country: ROMANIA
Tel: 0040256403992
Tel prefix: 0040
Fax: 0040256403987
E-mail address: ioan.sarbu@ct.upt.ro
Other E-mails: ioan_sarbu@yahoo.com
Title of the Paper: Correlations for enhanced boiling heat transfer on modified surfaces tubes
Authors as they appear in the Paper: Ioan Sârbu, Emilian Valea
Email addresses of all the authors: ioan.sarbu@ct.upt.ro, emilian.valea@ct.upt.ro
Number of paper pages: 8
Abstract: The paper treats the method of decreasing the size of surfaces of heat exchangers in general by increasing the heat transfer coefficients, the importance of heat transfer enhancement in general and for vaporization in special, also the used methods. This increase is achieved in our case by passive methods applied to heat transfer surfaces, namely mechanical processing, covering with sle-eves made by metallic tissues or covering with metallic porous layers, made using welding methods. These tube surfaces are used for increasing heat transfer coefficients from inner heating source to outer vaporizing liquids. Are mentioned also the most important particularities for vaporizing enhanced heat transfer from metallic porous layers. Results for tests made with improved heated surfaces, comparison between different surfaces are presented after personal research. Are proposed specific heat transfer correlations and results obtained with it compared with other researchers' r!
esults. Are described the way of establish and the correlations that could be used in the work of design for heat exchangers which are to be made from tubes having the described and used types of surfaces.
Keywords: Heat transfer, Modified surfaces, Porous layer, Vaporization, Correlation, Thermal performance; Metallografic analyses.
EXTENSION of the file: .pdf
Special (Invited) Session: Correlation for boiling heat transfer on porous surfaces tubes
Organizer of the Session: 649-175
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