ISSN: 0304-128X ISSN: 2233-9558
Copyright © 2024 KICHE. All rights reserved

Articles & Issues

Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.

All issues

동시 수렴범을 이용한 정상상태 이득의 효율적인 계산

Efficient Calculation of Steady State Gain Using Simultaneous Solution Method

HWAHAK KONGHAK, April 1989, 27(2), 138-145(8), NONE
downloadDownload PDF

Abstract

동시 수렴범(simultaneous solution method)에 의한 공정모사를 이용하여 공정제어 구조 합성의 핵심적인 수치인 정상상태 이득을 합리적으로 구하는 방법을 제시하였다. 공정 설계조건을 만족하는 해를 구한 후, 해를 구하는 과정에서 계산된 역 Jacobian행렬의 부분 행렬로부터 정확한 정상상태 이득을 구할 수 있었으며, 이를 이용한 방법이 많은 반복 계산을 통하여 정상상태 이득을 구하는 기존의 단계적 계산방법보다 효율적임을 알 수 있었다.
간단한 이성분계 증류탑에 이 방법을 적용하여 유용성을 알아보았으며 탑상농도와 탑저농도에 따른 가능한 제어 구조를 조사하였다.
A powerful technique using the simultaneous solution method is proposed to calculate the steady state gain which is quite essential to the synthesis of process control structure. After calculation of the solution of variables in process design, the steady state gain can be calculated accurately from the partial matrix of the inverse Jacobian matrix which is available for the solution. This technique is more effcient than the technique employing the conven-tional sequential modular approach which requires repetitive calculations to obtain the steady state gain. This method was applied to a typical binary distillation column to illustrate its usefulness in finding the feasible control structures for the top and bottom concentration control.

Keywords

The Korean Institute of Chemical Engineers. F5, 119, Anam-ro, Seongbuk-gu, 233 Spring Street Seoul 02856, South Korea.
Phone No. +82-2-458-3078FAX No. +82-507-804-0669E-mail : kiche@kiche.or.kr

Copyright (C) KICHE.all rights reserved.

- Korean Chemical Engineering Research 상단으로