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The design pressure of the container is 1931/-100 KPag, and the design temperature is 220/-46°C; therefore, in the data sheet I entered -100 KPag as the minimum design pressure. The owner’s feedback was “@?” ℃”I don’t know how to enter this temperature value I would appreciate some advice from the experts!
The client requests the design temperature at a pressure of -100 KPa. You should refer to the design specifications or consult an engineer to determine the lowest temperature at which the container can operate safely at the minimum design pressure; this temperature is usually related to the ductility and brittle transition temperature of the material. If the minimum design temperature is known to be -46°C, this temperature can be considered for entry, but it is best to first confirm whether it is suitable for pressure conditions of -100 KPa. .
It depends on what the design operating conditions are
-100 KPa refers to a complete vacuum; it is necessary to determine under what operating conditions a complete vacuum occurs in order to make a judgment. For example, in some reactors, light components are removed by evacuating the atmosphere, and in such cases the material needs to be heated to 220°C; the conditions at this time are -100 KPa and 220°C
Ugh, how on earth is low temperature designed?
Ugh, how exactly is the design temperature determined at low temperatures?