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공정시스템 이동현상 화학공정안전 : 화학공정 모델을 이용한 데이터 보정 및 gross error 의 감지
어수영(Soo Young Eo),장태석(Tae Suk Chang),신동일(Dong Il Shin),장광식(Gwang Sik Jang),윤인섭(En Sup Yoon) 한국화학공학회 1999 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.37 No.5
In this paper an integrated system for data reconciliation and gross error detection of the measurements in chemical processes is suggested. With unit process models and physical property routines, the proposed system itself works as an independent system. The proposed algorithm of data reconciliation is appropriate for the chemical processes that are consisted of the set of nonlinear equations. Since this method takes advantage of the repeated calculations of the constraint equations acquired by linear approximation, it improves the overall efficiency of the calculation. Also, the Point Test algorithm, which is better than the Measurement Test in co-linearity, for gross error detection is also suggested. The performance of the proposed system has been tested through a case study.