Dear all,
I need clarification about the impact of negative temperature at the outlet of blow down valve.
I am doing BDV sizing calculation for HP KOD.
Operating temperature - 50 degC (min. temperature 35 degC) (I use 50 degC for calculation )
Operating pressure - 120 barg
When i do depressurisation study in hysys, I get -40 degC as minimum valve outlet temperature.
MOC - CS (Surely it will brittle.)
My question is,
Is there any way to increase the minimum temperature at the valve outlet ?
If we can not change the min. temperature, then guide me to select some other material.
Thanks and regards,
Perumal M.