HEAT EXCHANGER RE-RATING
HEAT EXCHANGER RE-RATING
(OP)
Dear all
I'm a chemical not mechanical engineer...
How can I re-rate a heat exchanger to change its design conditions?
Actually, design temperature s 150ºF but this is the operating temperature of the new service.
See thread 124-195840
Regards,
AndreChE
I'm a chemical not mechanical engineer...
How can I re-rate a heat exchanger to change its design conditions?
Actually, design temperature s 150ºF but this is the operating temperature of the new service.
See thread 124-195840
Regards,
AndreChE





RE: HEAT EXCHANGER RE-RATING
RE: HEAT EXCHANGER RE-RATING
Operating pressure will be 4.6 barg
The portuguese jurisdiction regulates pressure vessels.
Regards,
AndreChE
RE: HEAT EXCHANGER RE-RATING
I would suggest that you re-rate this vessel under the rules of the National Board Inspection Code, because this vessel was probably registered with the National Board.
Get a copy of the NBIC and review the requirements for re-rating under Alterations. You will need to obtain design calcs to support your re-rate (if you are altering the pressure retaining capacity or lowering the design metal temperature).