|
Hazard and Operability Analysis (HAZOP) |
| Description :
|
The HAZOP technique was developed to identify operability problems during the design stage of a plant. It uses a structured, systematic brainstorming approach with an interdisciplinary team to identify problems resulting from deviations from the design intent. It uses a standard set of guide terms which are then linked in every possible way with a tailored set of process terms. The process terms are developed directly from the actual process or from the operations analysis. The two words together, for example “no” (a guideword) and “flow” (a process term) will describe a deviation. These are then evaluated to see if a meaningful hazard is indicated. |
| Advantages :
|
1) Identifies potential hazards and their effects at every stage of the project life cycle. 2) Highlights where effort can be most effectively applied to improve the system safety, reliability and availability. 3) HAZOP can evaluate both technical defects and human errors 4) Useful in evaluating complex systems where failures are relatively rare events |
| Disadvantages :
|
1) HAZOP is a qualitative method; it does not attempt to quantify hazards 2) Time consuming and requires specific expertise which may increase costs. 3) Does not identify multiple failures or account well for dependencies between failures |
| Contact :
|
|
| Tool Type :
|
Brainstorming |
| References :
|
Neogy, P., Hanson, A. L., Davis, P. R., & Fenstermacher, T. E. Hazard and Barrier Analysis Guidance Document. Department of Energy, Office of Operating Experience Analysis and Feedback, Report No. EH-33 (1996). http://pie.che.ufl.edu/guides/hazop/ |
| More Info:
|
|
| Journal :
|
16 |
| Proceedings :
|
6 |
 |
| Reports :
|
1 |
| Books :
|
10 |
|