Max. Working Temp. (MWT)
Max. Working Temp. (MWT)
(OP)
Hello all, I was wondering if anyone is familiar with the terms "maximum working temperature" and "upper design temperature"? They are stated in a spec I am reviewing and I never seen those terms used before. Any help would be greatly appreciated.





RE: Max. Working Temp. (MWT)
Maximum Working Temperature = Maximum Operating Temperature
Upper Design Temperature = Design Temperature (i.e. maximum temperature used in design per UG-20(a))
Lower Design Temperature = Minimum Design Metal Temperature (MDMT) per UG-20(b)
RE: Max. Working Temp. (MWT)
Or perhaps you were given several sets of design pressures and temperatures for the new vessel? In such a case the design pressure would likely be lower with each increase in temperature. The highest temperature would be the "maximum working temperature" of the sets.
RE: Max. Working Temp. (MWT)
Regards,
Mike
RE: Max. Working Temp. (MWT)
when in doubt, ask the writer of the spec.
RE: Max. Working Temp. (MWT)