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  1. robinxie

    How to create a simulation model for isenthalpic (adiabatic) flash?

    Thank you very much.
  2. robinxie

    How to create a simulation model for isenthalpic (adiabatic) flash?

    When I size two phase PSV, I need to run HYSYS for an isenthalpic (adiabatic) flash calculation at 90% of relief pressure to calculate the vapour specific volume. Could someone guide me how to set up this HYSYS model. The service is condensate, tow phase will be water and steam. Thanks in advance.
  3. robinxie

    Nitrogen Stainless Steel Piping

    Not this reason. They maybe consider some cryogenic problem when transferring a "big" flow rate of nitrogen. But I do not see any of this kind problem here.
  4. robinxie

    Nitrogen Stainless Steel Piping

    Our client needs a 3" nitrogen transferring piping system with 70,000 scfh flow rate under 100 psig pressure. The client engineer indicated they would like to use stainless steel piping. I just wonder what is the reason behind that? Thanks advance.
  5. robinxie

    Air drived motor

    Thx for all your info. The motor is 1 hp. Sorry for confusing you.
  6. robinxie

    Air drived motor

    I need a guildline how to estimate airflow for an air drived backup motor when I know the electrical motor size is 100hp. Thx a lot.
  7. robinxie

    on line resources

    Thank you very much, PB500.
  8. robinxie

    on line resources

    Thx a lot, PB500. Could you please indicate more contractors and licensors websits?
  9. robinxie

    on line resources

    Could anyone provide some on line resources regarding desalter, furnace and any refinery equipment specifications/data sheets? Thanks a head.
  10. robinxie

    High temperature/High pressure piping systems

    Hi, everyone, Dose anyone can provide the rule of thumb or resources for: 1. arrangement and layout of high temperature/high pressure piping systems and supports. 2. piping support component selection. Many thanks ahead.
  11. robinxie

    Cycles N / Factor f

    Thanks all of you. Is anyone familiar with ADLPIPE? and how to specify f or N in ADLPIPE?
  12. robinxie

    Cycles N / Factor f

    Hello, everyone, This question comes in my mind today suddenly. According to B31.3, if SE<SA, the piping system could pass the displacement stress analysis. SA=f(1.25Sc+0.25Sh) or SA=f(1.25(Sc+Sh)-SL) Either of those two equations depends on Factor f, or say, Cycles N. Let's assume there are two...
  13. robinxie

    Refrigeration machinery room ventilation

    According to CSA B52 clause 7.10, the room ventilation required to exhaust is based on the system refrigeration charges. What I know now is the HP of the ammonia compressor. How could I estimate the exhaust fan flow rate? Thanks ahead.
  14. robinxie

    Oil Refining on line information.

    Does anyone can guide me some oil refining process and piping design information or resouces? Many thanks ahead.
  15. robinxie

    Free Heat Transfer Book !

    Thanks so much. You worth hundreds of stars!!
  16. robinxie

    Earthquake load vs. Thermal expansion

    The thermal stress is considered as Displacement stress, and seismic as Occasional stress. They are calculated separately. I guess you should us B31.1 because it is a pipe for geothermal power plant, and should check Eq. 12 from the code.
  17. robinxie

    Could anyone tell me which code gov

    Thx a lot, Jcubed00. I will go to check it. Robin
  18. robinxie

    Could anyone tell me which code gov

    Could anyone tell me which code govern the HVAC design for a explosion proof room (powder process room)? Many thanks ahead. Robin
  19. robinxie

    Main Steam Line Condensate

    Thanks, PeteBennett. Yes, it would help. Please email to rxie@caltech.ca. Thanks again. Robin
  20. robinxie

    Main Steam Line Condensate

    Thank you very much, ccfowler. Robin

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