Nov.6,2008
Selis Önel, PhD
28
Ex: Liquid surge vessel model
nState equation:
n A(dh/dt)=F1-F2
nState variable:   h (or V)
n Output variable: h (or V)
n Input variables:
n Disturbance: F1
n Manipulated: F2
n Parameters: ρ and A
F1
From process 1
F2
To process 2
h
LT
LC
hm
hsp
Pv