Monday 21 February 2011

Wseas Transactions

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Transactions: INTERNATIONAL JOURNAL of ENERGY and ENVIRONMENT
Transactions ID Number: 20-435
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: Numerical modelling of two dimensional heat transfer in steady state regime
Authors as they appear in the Paper: Ioan Sârbu
Email addresses of all the authors: ioan.sarbu@ct.upt.ro
Number of paper pages: 9
Abstract: Solving the differential equation of heat conduction the temperature in each point of the body can be determined. However, in the case of bodies with boundary surface of sophisticated geometry no analytical method can be used. In this case the use of numerical methods becomes necessary. The finite element method is based on the integral equation of the heat conduction. This is obtai-ned from the differential equation using variational calculus. The temperature values will be calculated on the finite elements. Then, based on these partial solutions, the solution for the entire volume will be determined. Using this method we can divide into elements also fields with any border. Also, numerical modelling with boundary elements is used for analysis of heat conduction. In this paper are developed basic ideas of numerical analysis with finite elements and boundary (constant) elements of conductive thermal fields generated or induced into solid body in steady state regime!
. The temperature distribution in some solid bodies and in pipe insulation is analyzed using analytical method and finite element and boundary element methods, implemented in two computer programs developed by the author. This shows the good performance of the proposed numerical models.
Keywords: Heat transfer, Steady state regime, Finite elements, Boundary elements, Variational calculus, Numerical models, Computer programs.
EXTENSION of the file: .pdf
Special (Invited) Session: Analysis with boundary elements of heat conductivity in steady state regime
Organizer of the Session: 649-174
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