Bourbon103
Chemical
- Nov 30, 2005
- 32
The relief valve discharge of a thermal expansion scenario, with two species, is expected to be one species will remain liquid, the other will partially flash to vapor with the rest remaining liquid.
The relief is calculated to be relatively small (<3GPM liquid at the RV inlet) through a 1/2" x 1/2" relief valve.
Can I conservatively assume the entire discharge is vapor, or would two-phase flow create more pressure drop (not desiring to fight for the time to employ a rigorous two-phase flow analysis)? One, of course, would still have to account for liquid in the piping, e.g. avoiding low points, sloping, etc.
The relief is calculated to be relatively small (<3GPM liquid at the RV inlet) through a 1/2" x 1/2" relief valve.
Can I conservatively assume the entire discharge is vapor, or would two-phase flow create more pressure drop (not desiring to fight for the time to employ a rigorous two-phase flow analysis)? One, of course, would still have to account for liquid in the piping, e.g. avoiding low points, sloping, etc.
