(149a) Case Study: Qualitative Risk Assessment of a Refrigeration System
AIChE Spring Meeting and Global Congress on Process Safety
2019
2019 Spring Meeting and 15th Global Congress on Process Safety
Global Congress on Process Safety
Equipment Reliability and Inspection Practices
Wednesday, April 3, 2019 - 8:00am to 8:30am
This case study will present the methods that were used to calculate qualitative risk for a critical refrigeration system and the results of the assessment. This presentation is intended to demonstrate how Qualitative Risk Assessment can be a cost-effective and resource-efficient means to prioritize equipment often under the radar.
This assessment was performed to scope a capital, reliability investment by focusing the inspections, improvements and repairs to ensure reliable future operation.
- Probability was assessed using simple hoop stress, historical and expected corrosion rates and also accounted for unique damage mechanisms.
- Consequence was tabulated on Safety, Environmental and Operational factors based on Site SME review and assignment.
- A non-standard risk matrix was developed based on the needs of the site.
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