A switched system model for heat exchangers using a moving boundary method

Thomas L. McKinley, Andrew G. Alleyne

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


This paper presents a new switching scheme for moving boundary thermo-fluid models of heat exchangers. Pseudo state variables are introduced to accommodate the changing roles of dynamic variables as the number of different zones is changing. As a result, the number of states is conserved throughout the switches, but the forcing functions of the state derivatives change. A unique switching criteria based on void fraction is introduced and shown to be critical for mass conservation. Simulation results verify both the validity of the switched moving boundary model as well as its usefulness in a system simulation environment.

Original languageEnglish (US)
Title of host publication2008 American Control Conference, ACC
Number of pages8
StatePublished - 2008
Externally publishedYes
Event2008 American Control Conference, ACC - Seattle, WA, United States
Duration: Jun 11 2008Jun 13 2008

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Other2008 American Control Conference, ACC
Country/TerritoryUnited States
CitySeattle, WA


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