OPERATING AND DESIGN PRESSURE/TEMPRATURE
OPERATING AND DESIGN PRESSURE/TEMPRATURE
(OP)
hellow,
in our project in blowdown line the operating temprature
is more than design temprature.
some body how is it possible.
in our project in blowdown line the operating temprature
is more than design temprature.
some body how is it possible.





RE: OPERATING AND DESIGN PRESSURE/TEMPRATURE
Best regards
Morten
RE: OPERATING AND DESIGN PRESSURE/TEMPRATURE
we cannot say:poor design I think it is related to firecase
relief study because maximum operating temp. will be happend
in this case.but actually I dont have any information about that.
Regards
sadra
RE: OPERATING AND DESIGN PRESSURE/TEMPRATURE
Cheers,
TAD123
RE: OPERATING AND DESIGN PRESSURE/TEMPRATURE
Remember that if you are in europe theres a new pressure vesselv directive that overrules the old api 520 "fire case" 21% - now it alway (no exceptions) max 10%
Best regards
Morten
RE: OPERATING AND DESIGN PRESSURE/TEMPRATURE
RE: OPERATING AND DESIGN PRESSURE/TEMPRATURE
Do you think it may be possible that the design case temperature for your blow-down system is a minimum temperature chosen to account for the JT effect of the relieving gas? It might have an effect on the materials and welding procedures selected for this service.
Regards,
Gunnar