Development of an AI-supported Methodology for conducting automated or semi-automated HAZOP Studies
As part of the research project, a comprehensive methodology for conducting automated or partially automated HAZOP studies is being developed. With the help of knowledge representations and inference engines, the steps of hazard identification, risk assessment and risk-based definition of safeguards are carried out.
The knowledge representations are to be created or expanded on the basis of existing HAZOP studies. Using artificial intelligence methods such as natural language processing systems, HAZOP tables and other necessary documents are to be correctly recorded and semantically evaluated so that they can then be converted into knowledge representations using suitable methods such as ontology learning.
AI-supported HAZOPs will not only save time and costs in the future, but above all make risk analyses more objective – for greater safety in processes and plants.
Figure: Screening of HAZOPs using Natural Language Processing as a basis for the AI-supported creation of ontologies.
Concept for automated HAZOP studies
Digitization of existing HAZOPs through natural language processing
Automated generation of knowledge representations
Structuring of ontology modules as well as test and validation methodology
Input objects for automated HAZOPs
Natural Language Processing
Technical risk analyses are carried out in industry in order to systematically identify the hazards of technical systems for people and the environment, assess possible consequences and define suitable safeguards. In practice, risk analyses, such as HAZOP studies, are carried out by a team of experts at great expense of time. The risk posed by a plant must be regularly reviewed during its life cycle and may need to be reassessed several times in case of modifications or changed boundary conditions. The results of the risk analyses are significantly influenced by the composition of the team and the experience of the participants.
The time, personnel and costs involved can be significantly reduced by using automated concepts to carry out risk analyses. In addition to supporting the teams, automated concepts can help to expand and harmonize the knowledge base and reduce subjective assessments and evaluations. Documentation processes can also be automated.
Publications in preparation.