[curiouscat]

I found this bit in an Engineering Code that I was a bit confused in interpreting:

"In case of vessel without insulation or refrigeration,the maximum working temperature shall be considered as 50° C"

So if I have a vessel with just insulation, must I still consider temperature as 50 C?

i.e. In other words, to get a relaxation from being forced to use 50 C as the design working temperature does one both insulation and refrigeration? Or would any one be sufficient for a relaxation?

[rwiew]

Sounds like you need one of the two, so insulation is enough. I have no idea what this is about and take no responsibility for harm to anyone operating this vessel of course.

[curiouscat]

Sounds like you need one of the two, so insulation is enough. I have no idea what this is about and take no responsibility for harm to anyone operating this vessel of course.

Thanks! And of course. I take no responsibility either. That's for a PE. I'm only doing the conceptual design here.

As to what this is about: Whether storage tank falls under a certain section of Code. That depends on how high the vapor pressure is. The vapor pressure varies with temperature. This paragraph is ruling on what temperature to use.

[rwiew]

Ok, I see, all is safe then.