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  • Users: finechem
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  1. finechem

    Convestion coefficient in a jacketed vessel

    I am trying to calculate the convection coefficient for the heat transfer surface in a jacketed reactor. I have completed water tests and have determined overall ht trans coef, but I would like to get an idea for what is happening in the jacket when I change heat transfer fluid properties...
  2. finechem

    Charging prill BPA - dust/fines explosivity

    Looking to eliminate manway charge of Bisphenol A prill charge operation (BPA - low ignition energy, low conductivity, high explosion constant, high peak pressure - note particle size dist 35% less than 400 micron). I receive BPA in 50 lb bags - charge ~30 bags/batch to a grounded/inert...
  3. finechem

    Solvent Loss - N2 Purge

    I have a 10,000 gal batch distillation pot with 4 receivers operating 24/7. Currently I have an N2 purge on pot and all receivers. When fractionating (THF @ atmospheric pressure) our solvent losses are enormous (condenser discharge 65F) - no secondary. All vent lines tie into a vent header...
  4. finechem

    Hydraulic pump unloading valve

    new to hydraulics - I have a bank of 4 hydraulic pumps @ nominal 90 gpm each powering various hydraulic equipment (reactor agitators, etc.). The pumps each deliver to an unloading valve and then to system or reservoir. As the fluid is returned (from plant) it goes through a cooling heat...
  5. finechem

    Hydraulic pump unloading valve

    new to hydraulics - I have a bank of 4 hydraulic pumps @ nominal 90 gpm each powering various hydraulic equipment (reactor agitators, etc.). The pumps each deliver to an unloading valve and then to system or reservoir. As the fluid is returned (from plant) it goes through a cooling heat...
  6. finechem

    secondary condenser

    e.g., high vapor pressure solvent distillation, primary and secondary condenser - how can the vapor flow from each condenser be calculated @ respective discharge temperatures(no non-condensable flow). For instance, 10,000#/hr THF boil-up rate @ atmospheric pressure (T=150F), what happens when I...

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