Hi
I am working on Low temperature Seperator of capacity 122 MMSCFD of gas at 650 psig. For PSV sizing of Seperator there are two cases fire case and blocked discharge case for gas outlet side. By considering blocked discharge the orifice design comes out P which seems larger.
Is this orifice size oka..if not does it mean I have to size it for fire case???
If not ok can I use blowdown valve in case of blocked discharge in such a way that if it blocks blowdown valve opens until the process conditions become stable by opening of discharge valve (like PSV).?
What other options I have in this scenerio.