Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Non-credible scenarios

Simultaneous failure of two independent instrument or mechanical systems. Malfunction or redundant temperature or pressure shutdowns, loss of cooling and failure of both TSH and PSV. [Pg.40]

Failure of both the primary and secondary relief device to operate as designed. PSH fails and PSV does not release at the set pressure or is blocked. [Pg.40]

Immediate change of process fluid characteristics. Increase of produced gas H2S content from 5 ppm to 500 ppm within one day. [Pg.40]

Massive impact from foreign event. Plane crash into facility (unless facility sited next to airport). [Pg.40]

The primary safeguards for any facility is usually considered human observation, either physically at the plant or from instrumentation in a control room. API RP 14C provides typical process safeguards (instrumentation, alarms and shutdowns) usually employed in the petrochemical industries. [Pg.41]

See other pages where Non-credible scenarios is mentioned: [Pg.40]    [Pg.40]   
See also in sourсe #XX -- [ Pg.40 ]



SEARCH



Credibility

Credible

Scenario, scenarios

Scenarios

© 2024 chempedia.info