Chattering in dynamic mathematical two-phase flow models

Author

Bonilla, Javier ; Yebra, Luis Jose ; Zarza, Eduardo ; Dormido, Sebastian

Author_Institution

Autom. Control Group, CIEMAT-PSA, Almeria, Spain

fYear

2009

fDate

23-26 Aug. 2009

Firstpage

3939

Lastpage

3944

Abstract

This paper describes a chattering phenomena present in the thermodynamic simulations of steam-water two-phase flow mathematical models. The models were developed with the Modelica modelling language and the Dymola tool. Modelica is an object oriented, acausal modelling language with a library of thermal fluid components, Modelica.Media, which includes an implementation of the IAPWS-IF97 (the International Association for the Properties of Water and Stream - Industrial Formulation 1997). The chattering phenomena is presented in a practical case: once-trough boiler, and several approaches are proposed to avoid this practical simulation problem.

Keywords

flow simulation; heat transfer; steam; two-phase flow; water; Dymola tool; H₂O; IAPWS-IF97; Modelica modelling language; chattering phenomena; dynamic mathematical two-phase flow model; heat transfer; once-trough boiler; steam-water two-phase flow; thermal fluid components; thermodynamic simulation; Heat transfer; Interpolation; Libraries; Mathematical model; Numerical models; Object oriented modeling; Thermodynamics;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 2009 European

Conference_Location

Budapest

Print_ISBN

978-3-9524173-9-3

Type

conf

Filename

7075015