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Zone classification for sewage storage and packing system
Hi all, We have one storage house for sewage. The design engineer want to classify the house as zone2 as there might be slight H2S generated by sewage. As the house is equiped with forced ventilation( not sure if the ventilation rate reaches 6 times per hour), I can not argue with this zone 2...- seuenergy
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- Replies: 13
- Forum: Chemical plant design & operations
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How to dump to 50% of vessel's design pressure
Hi all, In API 521, section 4.6.6 states:" For pool fire exposure, this generally involves reducing the equipment pressure from initial conditions to a level equivalent to 50% of the vessel's design pressure within approximately 15 min." I am wondering how we could get 50% of design pressure...- seuenergy
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- Replies: 8
- Forum: Safety Relief Valve engineering (PSV)
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Backup fuel for pilot
Hi all, Does the flare system's pilot light in a petrochemical facility require a backup fuel supply? Is there any code requirement？ Thanks!- seuenergy
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- Replies: 5
- Forum: Chemical plant design & operations
