Thursday, 3 September 2009

Wseas Transactions

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Transactions: WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL
Transactions ID Number: 29-679
Full Name: Pavel Nevriva
Position: Professor
Age: ON
Sex: Male
Address: VSB-TU Ostrava,K455,FEI,17listopadu 15/2172,Ostrava-Poruba,70833
Country: CZECH REPUBLIC
Tel: +420597323135
Tel prefix:
Fax: +420597323138
E-mail address: pavel.nevriva@vsb.cz
Other E-mails: stepan.ozana@vsb.cz
Title of the Paper: Simulation of the Heat Exchangers Dynamics in MATLAB&Simulink
Authors as they appear in the Paper: Pavel Nevriva, Stepan Ozana, Ladislav Vilimec
Email addresses of all the authors: pavel.nevriva@vsb.cz,stepan.ozana@vsb.cz,ladislav.vilimec@vsb.cz
Number of paper pages: 12
Abstract: Heat exchangers that transfer energy from flue gas to steam are important units of thermal power stations. Their inertias are often decisive for the design of the steam temperature control system. In this paper, the analysis and the simulation of the dynamics of the steam superheater are discussed. Superheater is simulated as a unit of a control loop that generates steam of desired state values. To simulate the steam superheater on the computer, the exchanger is described by the set of partial differential equations. The equations are then solved numerically by modified finite difference method. Discussion of method and qualitative and quantitative results are presented. Paper describes use of Simulink S-functions which make it possible to set-up the most complex systems with complicated dynamics. There's a comparison of M and C S-functions, which are two main approaches when building user-defined blocks in Simulink, regarding both the performance and the efficienc!
y of the simulation for M and C versions of the codes and the possibility to perform a real-time simulation.
Keywords: Simulation, Heat exchangers, Superheaters, Partial differential equations, Finite difference method, MATLAB&Simulink, S-functions, Real-time
EXTENSION of the file: .doc
Special (Invited) Session: The Finite Difference Method Applied for the Simulation of the Heat Exchangers Dynamics
Organizer of the Session: 620-153
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