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  1. EngBrandao

    Locking of the agitator in the sulphate production furnace by hardening of material

    Dear Members I am having serious problems with material hardening inside the sulphate production furnace by the Mannheim process. The production is being hampered by the fact that we have to stop the oven often to unlock the stirrer. We believe that temperatures above 580 ° C favor the...
  2. EngBrandao

    Methyl Chloride Material compatibility

    Hi, I would like to know what is the most suitable material with a fluid that consists a mixture of: Methyl Chloride (ClCH3) Hydrogen Acid (HCl) Water (H2O) If I guarantee that the system was free of water could use carbon steel, but eventually we will have a little water that possible...
  3. EngBrandao

    Gas-Liquid transport in ducts

    So The velocity of the fluid in the pipe would be: Q = V.A v = (250.05 / 3600) / (pi * 0.1541 ² / 4) Liquid velocity in the pipe: 3,724 m/s the same Velocity of the gas as was used the total flow and not only the flow of liquid? Thank you.
  4. EngBrandao

    Gas-Liquid transport in ducts

    Hi, A two-phase fluid flowing in a pipe (6 in) which the proportions are: W gas: 1467 kg/h ρ gas = 6,5 kg/m³ Q gas = 225,7 m³/h W liq: 22969 kg/h ρ liq = 943 kg/m³ Q liq = 24,4 m³/h W total: 24436 kg/h Q total: 250,05 m³/h What is the velocity of the liquid in this...
  5. EngBrandao

    Discharge pressure of PSV

    Latexman, Pressure operation system: 3 bar PRV: 5 bar For Gas: The end pressure is: Pe = PRV * 0,93 = 5*0,93 = 4,65 bar For Liquid: Pe = 5*0,7 = 3,5 bar Is that? Thank you.
  6. EngBrandao

    Discharge pressure of PSV

    Hello The PSV is calculated up to alleviate until the operating pressure or relieving it so as to leave Band set that was imputed to him.The system operating pressure is 3 bar. The PRV set pressure is 5 bar. When the pressure within the vessel to match the pressure of the PSV, of course it...
  7. EngBrandao

    Maximum velocity for the Dowtherm A

    Hi, I would like to know what is the maximum velocity for the thermal fluid (Dowtherm A). About the recommended velocity for this fluid? Is there some range? work temperature: 250 - 230°C I am chemical engineer and I am designing a thermal system. The problem is: If I use tube of (6 in)...

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