A functional HAZOP methodology

Rossing, Netta Liin; Lind, Morten; Jensen, Niels; Jørgensen, Sten Bay

doi:10.1016/j.compchemeng.2009.06.028

Cited by 67 publications

(35 citation statements)

References 9 publications

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“…Another advantage of automated HAZOPs is that no nodes are left unexplored. The proposed assistant only needs a model (a D-higraph) of the process and not a model for each node of the HAZOP analysis, like the MFM HAZOP assistant (Rossing et al, 2010). The rule database is also common for all of the process because it is related to the relations between the elements of the model and not to the process itself, like HAZOPExpert (Venkatasubramanian et al, 2000), however, HAZOPExpert is able to deal with batch processes.…”

Section: Comparison With Other Methodologiesmentioning

confidence: 99%

HAZOP studies using a functional modeling framework

Mata

Rodríguez

2012

Computer Aided Chemical Engineering

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In this paper we present a tool to perform guided HAZOP studies using a functional modeling framework: D-higraphs. It is a formalism that gathers in a single model structural (ontological) and functional information about the process considered. In this paper it is applied to an industrial case showing that the proposed methodology fits its purposes and fulfills some of the gaps and drawbacks existing in previous reported HAZOP assistant tools.

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Section: Comparison With Other Methodologiesmentioning

confidence: 99%

HAZOP studies using a functional modeling framework

Mata

Rodríguez

2012

Computer Aided Chemical Engineering

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“…Stated the huge amounts of time and effort-which means money-involved in carrying out HAZOP studies, there is significant interest and considerable incentives to implement systems for automating them (Kletz, 1999a;Rossing et al, 2010a;Swann & Preston, 1995;Venkatasubramanian et al, 2000;Zhao et al, 2005a).…”

Section: When Is It Performed and How Long Does It Take?mentioning

confidence: 99%

“…To that end, we have developed the D-higraph of the Indirect Vapor Recompression Distillation pilot Plant (IVaRDiP) at the Department of Chemical and Biochemical Engineering at Technical University of Denmark (DanmarksTekniske Universitet, DTU) and we have also performed a HAZOP analysis using the D-higraphs framework. Rossing et al (2010aRossing et al ( , 2010b used this case study, so a direct comparison can be made.…”

Section: Introductionmentioning

confidence: 99%

“…D-higraphs, as a functional modeling technique, can be used in the same way than Multilevel Flow Modeling (Lind, 1994(Lind, , 2005 is used to develop the 'Functional HAZOP assistant' proposed by Rossing et al (2010aRossing et al ( , 2010b. D-higraphs provide almost the same functional knowledge than MFM but as they integrate structural information, the correlation with the real system is much more direct and easier.…”

Section: Introductionmentioning

confidence: 99%

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Automating HAZOP studies using D-higraphs

Rodríguez¹,

Mata²

2012

Computers & Chemical Engineering

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In this paper, we present the use of D-higraphs to perform HAZOP studies. D-higraphs is a formalism that includes in a single model the functional as well as the structural (ontological) components of any given system. A tool to perform a semi-automatic guided HAZOP study on a process plant is presented. The diagnostic system uses an expert system to predict the behavior modeled using D-higraphs. This work is applied to the study of an industrial case and its results are compared with other similar approaches proposed in previous studies. The analysis shows that the proposed methodology fits its purpose enabling causal reasoning that explains causes and consequences derived from deviations, it also fills some of the gaps and drawbacks existing in previous reported HAZOP assistant tools.

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“…incorporating from the beginning a sort of PI&D description and MFM-HAZOP (Rossing et al, 2010) incorporates a knowledge/rule management system to generate the HAZOP tables. The original FMEA method, best suited to the failure of single component was extended to other entities like computer based control systems or event human procedures (Ishimatsu et al, 2010).…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Limitations of current risk assessment methods to foresee emerging risks: Towards a new methodology?

Escande

Proust

Coze

2016

Journal of Loss Prevention in the Process Industries

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Coze. Limitations of current risk assessment methods to foresee emerging risks : Towards a new methodology ?. Journal of Loss Prevention in the Process Industries, Elsevier, 2016Elsevier, , 43, pp.730-735. 10.1016Elsevier, /j.jlp.2016 M A N U S C R I P T A C C E P T E D AbstractThe objective of this work-in-progress is to investigate the potentialities but also the limitations of traditional risks analysis tools especially in the context of emerging technologies and develop a method facilitating the early detection of scenarios of accidents. This is certainly a challenge particularly for new industrial fields since, in this case, very little or no lesson from past accidents is available. It is believed that such situations cannot be conveniently treated using traditional risk assessment methods (HAZOP, FMEA,...) and typical examples are given. The reason is that those methods rely heavily on past accidents and are therefore "trapped" in them so that they are largely "inductive". In terms of foreseeing the future, the shortcomings of inductive methods are recalled. The possibility to imagine the future with very little clues is then discussed on the ground of theoretical consideration and a way to do so is proposed (abduction, serendipity). Then on the basis of the observation of how the experts work and how discoveries are made, a potential new methodology is outlined. Keywords: Decision engineering, Hazards identification, Management and planning, SafetyHighlights :• illustrated examples of various situations where standard risk analysis failed ;• illustrated examples of the successful identification of a unknown risk within the context of a formatted risk analysis exercise; • investigation of the way discoveries are made and of the potential links with the risk analysis exercise.

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A functional HAZOP methodology

Cited by 67 publications

References 9 publications

HAZOP studies using a functional modeling framework

HAZOP studies using a functional modeling framework

Automating HAZOP studies using D-higraphs

Limitations of current risk assessment methods to foresee emerging risks: Towards a new methodology?

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