Modeling and control of the melt index in HDPE process

Autor:	Eun Ho Lee, Kyung Nam Lee, Yeong Koo Yeo, A. Ram Seong
Rok vydání:	2009
Předmět:	Modeling and simulation LTI system theory Model predictive control Nonlinear system State-space representation General Chemical Engineering Process (computing) Applied mathematics General Chemistry Isothermal process Melt flow index
Zdroj:	Korean Journal of Chemical Engineering. 26:7-13
ISSN:	1975-7220 0256-1115
DOI:	10.1007/s11814-009-0002-4
Popis:	We investigate the model for an industrial isothermal HDPE slurry reactor. The model, consisting of several nonlinear equations, can be linearized to give sets of linear time invariant state space model. The effectiveness of the linearized model is verified by the numerical simulations. A simple model predictive control scheme is constructed based on the linear state space model. The value of the melt index is obtained from the values of the manipulated and controlled variables generated from the control scheme. The control performance can be evaluated from the comparison between the computed melt index values and measured melt index values. The control scheme shows good tracking performance in the numerical simulations. We believe that the model developed in the present study can be effectively used to predict process variables as well as to control the melt index.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e8dcedb03fba87db95a4018fd695e527 https://doi.org/10.1007/s11814-009-0002-4 Zobrazit plný text záznamu Full text from SpringerLink