TY - GEN
T1 - A switched system model for heat exchangers using a moving boundary method
AU - McKinley, Thomas L.
AU - Alleyne, Andrew G.
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=52449087026&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=52449087026&partnerID=8YFLogxK
U2 - 10.1109/ACC.2008.4586697
DO - 10.1109/ACC.2008.4586697
M3 - Conference contribution
AN - SCOPUS:52449087026
SN - 9781424420797
T3 - Proceedings of the American Control Conference
SP - 1455
EP - 1462
BT - 2008 American Control Conference, ACC
T2 - 2008 American Control Conference, ACC
Y2 - 11 June 2008 through 13 June 2008
ER -