Rankin ERS Services can help provide solutions to your emergency relief system needs, including:
- Evaluation and rating of existing relief devices
- Re-purposing of equipment for different process conditions and/or chemistries
- Modification of tailpipe or blowdown system configuration
- Change in relief device setpoint
- Sizing, specification and procurement of new relief devices
- Sizing calculations for all credible overpressure scenarios in accordance with API-520/521 (pressure vessels) or API-2000 (low pressure storage tanks)
- Sizing of inlet piping and tailpipes
- Datasheet specifications for rupture disks and emergency relief valves
- Requests for quotation, bid tabulations and selection of vendor(s)
- Oversight of field installation
- Commissioning and start-up
- Two-phase flow analysis
- Prediction of two-phase flow during relief using DIERS methodology
- Sizing of relief devices for two-phase flow (two-point Omega method)
- Evaluation of dynamic pressure response for verification of proper relief device sizing
- Prediction of vented material quantities for containment strategies
- Blowdown systems engineering
- Blowdown header sizing for multiple PRD tailpipe discharges
- Sizing and engineering of downstream containment and mitigation equipment (i.e. catch tanks, seal pots, quench towers, thermal oxidizers, flares, scrubbers, etc.)
- Miscellaneous services
- Safety audit and code compliance checks for existing emergency relief systems
- Audit-proof PDF documentation packages for each relief device evaluated
- Seminar training sessions to help your engineers understand the nuances of emergency relief sizing