Re: [MW:26120] NER and Vacuum for cryogenic tank

Evaluation or Evaporation?

2017-02-20 12:35 GMT+02:00 rbenadjal@avl.sonatrach.dz <refazosaris@gmail.com>:

Good morning every body,

Following your knowledge and your experience, please advise me how to determine the nitrogen evaluation rate (NER) for the cryogenic tank.

My question:

-          Is there any code to control the NER?

If no code any procedure or specification on the subject would be appreciated.

Also, following the Manufacture's Data Report for the tank, the acceptance standard maximum is 150 mtorr for 72 hours. Is this value (150 mtorr) mentioned in the codes and standard or just manufacturer's standard?

Thanks in advance.

 

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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