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  • Users: leongw
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  1. leongw

    Behaviour of Cryogenic Liquid Nitrogen

    What will happen to liquid nitrogen in a storage vessel if the pressure is increased beyond its critical point pressure (33.99 bar abs)? Will it remain as liquid?
  2. leongw

    Calculation of heat inleak of Vacuum Jacketed Pipe

    I wish to find out how to calculate the heat inleak into a vacuum jacketed pipe assuming the fluid inside the pipe contains cryogenic liquid nitrogen.
  3. leongw

    A572 Gr 55 Anchor Rods - thread507-152483

    I have read the thread on F1554 Anchor Rods - thread507-152483. In that particular thread, it is mentioned that F1554 Gr 55 has an equivalent material of A572 Gr 55. May I know if there is also other equivalent material of A572 Gr 55. Perhaps AISI1330? Hope there is someone who can share their...
  4. leongw

    API620 Low Pressure Storage Tanks for Cryogenic Liquid Storage

    I am having two new tanks which are designed to API620 Appendix Q. The MAWP of this tank is 100mbarg which is equivalent to 1.45psig. I wish to know whether these tanks should be considered as pressure vessel if the design code is API620. Appreciate it if anyone can provide some explanation and...
  5. leongw

    Definition of Choking or Critcal Flow

    Dear all, I am looking for an explanation on the definition of choking or critical flow and what happen during choking or critical flow condition. Appreciate if someone can assist. Thank you.

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