Application of dynamic modeling for relief system design can substantially lower capital expenditure (CAPEX) while simultaneously improving plant safety. This article considers using dynamic analysis to two areas: vessel depressurization (or “blowdown”) and flare network design. New modeling methods can accurately quantify relief loads and metal temperatures to enable informed safety and CAPEX decision support.
Case history 1: Vessel depressurization
Detailed dynamic analysis of the rapid depressurization (blowdown) of high-pressure vessels is a key element of the safety analysis of oil and gas facilities and other high-pressure installations.
Event description. Depressurization
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