I am designing a common flare gas system for Butadiene, Vinyl Chloride and Ethylene.
Flare system used is of carbon steel. SS is not used because of Chloride stress corrosion cracking due to Chloride content.
Since Ethylene governing case relief temp is -78C and if did not considered wind velocity than for its not possible for me to connect this line to carbon steel.
Since my distance is around 350 m so if 1 considered even 1m/s of velocity and ambient temp as 15C my temperature at connecting point to CS piping comes at -5C. Which seems to be Ok.
My question is:
1) Can I use 1m/s of wind velocity and ambient heat loss.
2) if No than what will the other option I can have to have CS Flare system.
Thanks a lot
Shashank