การวิเคราะห์ HAZOP อย่างเป็นระบบ บนพื้นฐานของแบบจำลองเชิงโครงสร้าง

Name: อัญชลี มุลาลี

Organization : มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

keyword: HAZOP

; Structural Model

; Hazards Identification

Abstract: Hazards and mal-operations are the crucial problems for every process. Hazard andOperability study (HAZOP) is a most widely used to analyze such problems.Nevertheless, HAZOP procedure requires experts and time-consuming, which are thedrawbacks of this procedure. Several researchers proposed the digraph technique withcomputer-based methods named automatic HAZOP to facilitate the analyzers. Thisdigraph technique is also employed in structural model in a field of process control.This model represents the system with relative in foundation matrix and identifies theloop control pairing. Hence, the combination of both concepts of automatic HAZOP andstructural model was introduced in order to obtain the systematic procedure for hazardsand mal-operations identification. The methodology to identify hazards and maloperations,named HAZOP with structural model, was proposed for 3 scenarios. Thefirst two scenarios were proposed by constructing the model with initial HAZOP data,so they can be used to fulfill the HAZOP library. The difference between these twoscenarios is that the first is used for analyzing hazards and mal-operations for each unitwhereas the second is used for interaction study of the adjacency units. A scenario ofinteraction study is used to identify causes of the upstream unit affect the downstreamunit as consequences. It uses the combination between the concept of non-local pathanalysis from structural model and the introduced idea of dummies of causes andconsequences. The last scenario was proposed to create the templates for hazards andmal-operations identification for arbitrary operating units. To verify the proposedscenarios 1 and 2, the Defatted Soy Flour Pilot plant was used. The results showed that,the proposed scenarios could fulfil the library of the case study. It was found those 18new consequences for the first scenario, 10 new consequences for the second scenario.For the last scenario, it was used to analyze an arbitrary flash drum by applying 3 guidewords(more, less and no); the results showed those 46 causes and 83 consequences.The proposed methodology, therefore, can reveal the guidance for hazards and maloperationsidentification.

มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

Address: กรุงเทพมหานคร (Bangkok)

Email: info.lib@mail.kmutt.ac.th

Name: Asst.Prof. Thongchai Srinophakun

Role: Supervisor

Created: 2545

Issued: 2005-11-03

Modified: 2006-05-10

วิทยานิพนธ์/Thesis

ISBN: 9749605810

CallNumber: CHE1351

tha

DegreeName: วิศวกรรมศาสตรมหาบัณฑิต

Level: ปริญญาโท

Descipline: วิศวกรรมเคมี

Grantor: มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

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