Author/Authors :
G. Muscato and M.G. Xibilia، نويسنده ,
Title Of Article :
Modeling and control of a natural
circulation loop
Latin Abstract :
In this paper some theoretical and experimental results concerning the modeling and control of rectangular natural circulation
loops are presented. These thermo-fluid-dynamic systems are used to refrigerate heat sources by means of natural circulation of a
fluid without mechanical pumping. Despite the structural simplicity of these systems, they can exhibit unstable behaviour, resulting
in wide and dangerous oscillations. Anon-linear lumped parameter model was derived by using a truncated Fourier series expansion
of a suitable set of variables. The performance of the model was compared with a set of experimental data. Then a set of
controllers, corresponding to different equilibrium points, was designed and tested both in simulation and experimentally. In all
cases the controllers were capable of stabilising the system to the desired equilibrium condition.
NaturalLanguageKeyword :
Temperature control , Modelling , Nonlinear dynamics , Flow control
JournalTitle :
Studia Iranica
