Vol.1, No 5, 1998 pp. 527 - 536
UDC:66.047.41
DISCONTINUOUS DRYER DYNAMICS
L. L. Pezo1, D. Lj. Debeljković2, D. Voronjec3,
V. P. Ilić4
1Engineering Department, Institute of General and Physical
Chemistry, Akademski trg 12/V, 11000 Belgrade
2Department of Control Eng., University of Belgrade, Faculty
of Mechanical Eng., 27. Marta 80, 11000 Belgrade
3Department of Thermodynamics, University of Belgrade, Faculity
of Mechanical Eng. 27. marta 80, 11000 Belgrade
4System Control Group, Faculty of Technology and Metallurgy,
Karnegijeva 4, 11000 Belgrade
Abstract. On the basis of really accepted and criticaly justified
assumptions, a non-linear as well as linearized mathematical model of discontinuous
vacuum dryer has been developed. Model is in the form of partial differential
equations with time-varying coefficients. Using the appropriate numerical
methods an adequate simulation has been done. Derived results show a quite
well agreement with the real dryers dynamical behevior.
Key words: dryers, mathematical modeling, simulation, dynamic
analysis
DINAMIKA DISKONTINUALNIH SUŠARA
Na osnovu realno prihvaćenih i kritički verifikovanih pretpostavki, razvijen
je nelinearni i linearizovani matematički model diskontinualne vakuumske
sušare. Model je u obliku parcijalnih diferencijalnih jednačina sa vremenski
promenljivim koeficijentima. Korišćenjem odgovarajućih numeričkih metoda
urađena je odgovarajuća simulacija. Dobijeni rezultati su u veoma dobrom
slaganju sa dinamičkim ponašanjem realnih sušara.
