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  • Users: Will Qin
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  1. Will Qin

    Fired Furnace Residual Heat

    Hi all I have two questions about fired furnace residual heat when calculating relief rate. Fired furnace upstream of crude unit, power failure scenario, furnace goes offline. 1.For dynamic simulaiton, the holdup volume is equivalent to radiant & convection section furnace coil, or just...
  2. Will Qin

    Standard elbows in Crane

    I was confused by the resistance coefficients in Crane. For standard elbows K=30ft while K=20ft(r/d=1) for flanged or butt-welding 90° elbows. There is no any note about standard elbows in Crane. Why there is big difference between standard elbows and others? and what's standard elbow? Thanks in...

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