Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. hongxiangping

    Hemispherical head plan development

    Thanks to both DriveMeNuts and 212197. Your sharing is much appreciated!
  2. hongxiangping

    Hemispherical head plan development

    Dear DriveMeNuts, Thanks for your comment. Before this I thought that this can be done by direct calculations and profile projection. I will look into Elastic Plastic Analysis direction for this.
  3. hongxiangping

    Hemispherical head plan development

    Hi all, I am looking for ways to do blank plate plan development for segmented hemispherical head for pressure vessels. I have tried searching for such info, but not able to get this from search engine. Would be appreciated if someone here can share with me useful reference or guidelines for...
  4. hongxiangping

    ASME I PG-29 Dished Head Thickness Calculations

    thread794-171508: ASME Section I PG-29 Dished Heads I need some advice on interpretation of thickness calculations for 2:1 ellipsoidal head, as per ASME BPVC Sect I, PG 29. As per PG-29.1, it states that minimum blank dished head thickness shall be t=5PL/4.8Sw. As per PG-29.7, it states...
  5. hongxiangping

    ASME BPVC Sect I - PG-29 - 2:1 Ellipsoidal Head Thickness

    thread794-171508 I need some advice on interpretation of thickness calculations for 2:1 ellipsoidal head, as per ASME BPVC Sect I, PG 29. As per PG-29.1, it states that minimum blank dished head thickness shall be t=5PL/4.8Sw. As per PG-29.7, it states thickness of blank 2:1 ellipsoidal head...
  6. hongxiangping

    Nusselt number equation for internal flow

    Dear BigInch, Noted and thanks again for your useful information. Dear IRstuff, Thank you. I will look into Holman's book as well. The current reference I frequently referred to is Yunus Cengel's "Heat Transfer" book. Dear georgeverghese, Thanks for your comment, I agree with you, as...
  7. hongxiangping

    Steel for pressure vessel

    As for my understanding, EN10028-3 is specification for normalized steel. To carry out the design of the pressure vessel, the exact material code shall be given, so that the material allowable stress can be determined, e.g. for EN10028-3-P355N steel with thickness from 60 mm to 100 mm has...
  8. hongxiangping

    Nusselt number equation for internal flow

    Dear BigInch, Thank you for your input, now I have a better idea as on the temperature correction factor with exponent of 0.8. On the other hand, I have never seen the Nu equation presented by you. Do you mind telling me where does this correlation comes from, i.e. the reference paper...
  9. hongxiangping

    Nusselt number equation for internal flow

    Dear kfoh, Thank you for your reply. I would prefer to go for the Gnielinsky correlation now, it also covers a wide range of Re and Pr value.
  10. hongxiangping

    Nusselt number equation for internal flow

    Hi, I'm just going through a calculation left by an old senior from my company to determine Nusselt number for gas flow inside tube for a simple cross-flow heat exchanger performance estimation, and he was using the formula as below: Nu = 0.023(Re^0.8)(Pr^0.4)[(Tb/tf)^0.8] where Tb is the bulk...

Part and Inventory Search

Back
Top