Recent content by seuenergy

Hi Shvet, Thanks for your reply. My confusion is that if the set pressure of PSV is only little than design pressure. Like 95% of design pressure. How can we get 50% of design pressure when dumping. Thanks!

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...

This topic remimder me of one leason learnt from EPSC.

hi, sorry for my poor memory. API 521 suggests the minimum design pressure of knockout drum should be 0.345MPa. My thinking is that the flare stack should be not less than this value.

Normally, the rate of pressure increase rise of hydrocarbon is roughly 7~8 times of deflagration, and 12~13 times for H2. So if the operating pressure of flare system is 0.5bar, so 0.5* 8 = 4 bar. Then 7 bar design pressure is reasonable. There is also code from API, it has recommended valve. If...

Hi all, Does the flare system's pilot light in a petrochemical facility require a backup fuel supply? Is there any code requirement？ Thanks!