NH3 refrigeration plant Mexico; Design Pressure
NH3 refrigeration plant Mexico; Design Pressure
(OP)
We have the order for an NH3 refrigeration plant for the south of Mexico. We need to know the required design pressures there for as well low pressure section as high pressure section.
(We have agreed that the design code for pressure vessels to follow will be PED (European Pressure Directive).
(If we followed German rules, 16 barg high pressure and 12 barg low pressure section would be sufficient.)
Does anybody know about this and can provide us with additional information?
Regards virk
(We have agreed that the design code for pressure vessels to follow will be PED (European Pressure Directive).
(If we followed German rules, 16 barg high pressure and 12 barg low pressure section would be sufficient.)
Does anybody know about this and can provide us with additional information?
Regards virk





RE: NH3 refrigeration plant Mexico; Design Pressure
Probably the minimum design pressure in the United States could also be helpful because we heard that Mexico often follows American rules.
Any support kindly appreciated!
Kind regard
virk
RE: NH3 refrigeration plant Mexico; Design Pressure
what are the local storage temperatures hte vessels will be exposed to. Both high and low. From these temperatures (wiht some margins) the stauration pressures will give the design pressures required.
Mark Hutton
RE: NH3 refrigeration plant Mexico; Design Pressure
The system will condense the ammonia at 14 bars absolute and the low operation pressures will be 0,28 bars absolute and 0,35 bars absolute.
I think I need a hint to any specific requirements there in Mexico.
Regard
virk
RE: NH3 refrigeration plant Mexico; Design Pressure
Mark Hutton
RE: NH3 refrigeration plant Mexico; Design Pressure
2) Minimum ambient temperature is -10°C. Why this is important?
Regard virk
RE: NH3 refrigeration plant Mexico; Design Pressure
Note of caution as the whole system will at some stage be exposed to the higher temperature while charged with amonia and allowed to come to ambient temperature, the whole system should be designed to the higher pressure i.e. 17.4 Bar.
Mark Hutton
RE: NH3 refrigeration plant Mexico; Design Pressure
Regards virk