Combining empirical knowledge and first principles qualitative and quantitative models in HAZOP: Part I. HAZOP Review

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Objectives of the project have been to explore the roles of empirical knowledge, qualitative models and quantitative models in HAZOP. The research bridges the gap between industrial HAZOP practice and academic HAZOP research. It gives insight on dealing with system complexity from a HAZOP study perspective. The project reviews HAZOP where empirical knowledge, qualitative models, and quantitative models play key roles in facilitating in different tasks of HAZOP. Based on the review, an integrated qualitative and quantitative framework based on methods of Multilevel Flow Modeling, risk matrix and dynamic simulation is illustrated with an offshore three-phase separation process case study demonstrating the feasibility and applicability of the proposed framework. The research results indicate that the challenges of HAZOP are management knowledge i.e. dealing
with system complexity, uncertainty, vagueness, and requirement of completeness, and efficiency. The encoding empirical knowledge in the form of qualitative models, and quantitative models are the means to overcome those challenges. Therefore, the conclusion is to integrate these means by making use of their features to serve as a framework to prepare for HAZOP study meetings. In this way one can maximize the complementary advantages of the means and come up to better HAZOP quality.
The research can enlighten the importance of understanding system complexity for personnel in oil and gas industry and thereby gradually to change old-fashioned HAZOP industrial practice and improve safety performance in oil and gas industry. Methods in the framework and potential tools can improve HAZOP quality and efficiency with low manpower cost and help with decision making. The oil and gas industry can implement the framework for HAZOP study on real plants to test its usefulness. The research is carried out by Jing Wu and Morten Lind in DTU Electrical Department and funded by Danish Hydrocarbon Research and Technology Center (DHRTC). Research partners in the project include Prof. Emeritus Sten Bay Jørgensen, Assoc. Prof. Gürkan Sin in DTU Chemical Engineering, Prof. Michael Havbro Faber in the Department of Civil Engineering, Aalborg University.
Original languageEnglish
PublisherTechnical University of Denmark
Number of pages85
Publication statusPublished - 2017

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