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  1. MadTech

    ERS Leung Venting Equation (1992)

    In Leung's paper "Venting of Runaway Reactions with Gas Generation" AIChEJ 1992, allowance can be made for reduction in design flow arising from mass depletion during the emergency relief process in bubbly flow. The applicable reduction factor is given as (Eq 39) W/Wmax = 1/(1+ ao^.5)^2...
  2. MadTech

    Flow resistance in piping bends

    Greenche - thank you very much indeed! MadTech
  3. MadTech

    Flow resistance in piping bends

    Greenche/Katmar: I've looked though the internet and could not find a copy of Beij's article. Our local university library has the journal but not back to 1938. Any ideas on how I could get my hands on a copy? Thanks ... MadTech
  4. MadTech

    Flow resistance in piping bends

    Greenche - thanks - if you could get that detail I would appreciate it MadTech
  5. MadTech

    Flow resistance in piping bends

    Thanks all for your contributions! Greenche - what is the lamda term in the Beij paper? And, am I correct in assuming the "l" term is length of the bend (=pi.r/2)? Is the Beij paper available electronically so I could purchase it? Does Beij estimate how big are the relative contributions of...
  6. MadTech

    Flow resistance in piping bends

    I did some more work on this issue and compared in detail the experimental data given in Crane Fig 2-16 with the correlation in A-29 and can only conclude that A-29 is not derived from the data in Fig 2-16 even when we subtract the length effect. I suspect that A-29 comes from some entirely...
  7. MadTech

    Flow resistance in piping bends

    I've been comparing Fig 2-16 and the table on Page A29 in Crane Tech Paper 410 which both purport to show Kb versus r/d. The Fig 2-16 shows experimental data for Kb versus r/d which starts at values of Kb about 0.35 to 0.4, dips to about 0.2 at r/d = 4 and rises roughly to a plateau at r/d > say...

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