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  1. JohnCal

    Lamiflex sealing

    I need your help on "Lamiflex" sealing strip on logitudinal baffle of TEMA "F" shell. Please advise the commonly used types e.g. single layer or multiple layers or any other sepcial shapes and material details e.g. what kind of material is not prone to lose its resiliency at 500~700 deg F. Are...
  2. JohnCal

    Liquid sulfur viscosity

    Thank you very much.
  3. JohnCal

    Liquid sulfur viscosity

    We are designing a sulfur plant. I got liquid sulfur viscosity curves that the liquid sulfur viscosity will increase when temperature increases from 275 deg F to 500 deg F in a sulfur cooler (cool down the sulfur feed). The engineer advised me that this special property is due to the H2S...
  4. JohnCal

    FEA Analysis of BreechLock Closure

    I am purchasing high pressure exchangers with breechlock closure. I know that H. Kobayashi, T. Yoshioka and T. Takehana in Japan published several papers on FEA analysis of the breechlock closure. Does anybody have their papers or such kind of references/literatures. Thanks a lot,
  5. JohnCal

    desresonating baffle

    The de-resonating baffle is used to increase the acoustic frequency, thus eliminating acoustic vibration problems. The first deresonating baffle is placed at 45% of shell ID. If higher mode of acoustic vibration is predicted, the second deresonating baffle is placed at 82% shell ID.
  6. JohnCal

    HCBN,H2O,H2 Prodect Cooler (in hydroteater plant)

    speco and 25362, Thank you very much for your information. Per literatures, the phase separation in floating head of a S&T exchanger will not affect heat transfer significantly, but the temperature profile (hence LMTD). Based on this, I designed this air cooler with 6 tube rows and 2 tube...
  7. JohnCal

    HCBN,H2O,H2 Prodect Cooler (in hydroteater plant)

    This will be an air cooled heat exchanger (Inconel 625 tubing and header boxes). Inlet vapor weight fraction is 0.85 while outelet vapor fraction is 0.25. When it was designed with 2 tube passes (1" tubing, 6 tube rows, 3 rows/pass), the velocity in first/second tube pass is about 16.5/12.5...
  8. JohnCal

    Software for Heat Exchanger Design

    B-JAC is a design suite, having TEAMS for Shell & Tube mechanical design, HETRAN for Shell & Tube thermal design, and AEROTAN for air cooler thermal design. HTRI is only thermal design software for exchangers (HTRI Suite 2.0, Shell & Tube, Air cooler, PHE). HTFS is integrating the thermal and...
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