(116a) LOPA - When the Solution Becomes the Problem!
AIChE Spring Meeting and Global Congress on Process Safety
2016
2016 AIChE Spring Meeting and 12th Global Congress on Process Safety
Global Congress on Process Safety
Enhanced Application of Lessons Learned
Tuesday, April 12, 2016 - 1:30pm to 2:00pm
Inappropriate or rigid application of LOPA has led to a number of significant issues, including:
- Applying LOPA to a wide range of scenarios for which it was not intended
- Excluding important safeguards from consideration
- Mischaracterizing risk, resulting in recommendations to add large numbers of instrumented protective systems
- Generating LOPA IPL requirements at variance with HAZOP assessments
- Bypassing inherently safe designs in favor of instrumented solutions
The above misapplications can result in appreciable, unnecessary cost, including installed equipment costs and long term documentation, maintenance, and inspection requirements. In addition, system complexity can be increased to the point where process units may become marginally operable, increasing the potential for a major incident and undermining LOPA’s original intent.
This paper will provide examples from actual LOPA studies that illustrate the above concerns, along with suggestions, based upon one Company’s approach, to address these concerns.
Checkout
This paper has an Extended Abstract file available; you must purchase the conference proceedings to access it.
Do you already own this?
Log In for instructions on accessing this content.
Pricing
Individuals
AIChE Pro Members | $150.00 |
AIChE Graduate Student Members | Free |
AIChE Undergraduate Student Members | Free |
AIChE Explorer Members | $225.00 |
Non-Members | $225.00 |