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Recent content by tractable09

  1. tractable09

    Exchanger Fouling Resistance Decreasing With Time?

    Thanks for the reply, Sea water(SW) is the cooling media and there is no control on this side. The flow is not measured, it is delivered by fixed number of pumps and therefore flow rate is kept constant in calculations. On Ammonia side, the compressor speed changes based on ammonia vapor load...
  2. tractable09

    Exchanger Fouling Resistance Decreasing With Time?

    Dears, We've two Ammonia shell and tube condensers in parallel on both tube and shell side. Ammonia vapours are coming from a compressor discharge on shell side and cooled in the condensers via sea water (SW) on tube side. Both exchangers were cleaned in March-2015 and now I decided to find the...
  3. tractable09

    maximum voltage across a wire

    Thanks all for the replies and giving some understanding. One thing remains is what jraef mentioned, how do i know the wire is rated for 300/600v or 50v? That is a big difference. I mean just looking at the insulation thickness for example i can differentiate between two voltages...
  4. tractable09

    maximum voltage across a wire

    Thanks for the details, the link of powerstream.com gives me the maximum amperes, voltage rating is not mentioned.
  5. tractable09

    maximum voltage across a wire

    I am a hobbyist for small electrical projects and chemical engr. by profession. I have an 18AWG wire connected to 12V DC and giving power to a load with 10A current passing through wire. I want to put a higher load with 48V DC but the current will be 10A again. In 3rd case I want to use same...
  6. tractable09

    Evaluation of ion exchange resin-water treatment

    Thanks ione for the reply, Means lab has wrongly mention microeq/L as meq/L. If I do same for SO4(-2), 2121ppb of SO4(-2) = 2121/1000 mg/L = 2121/1000 * 96/2 meq/L= 101meq/L but lab has shown Total Anion = 144 meq/L, again lab is wrong here or my understanding is not correct. ok for evaluation...
  7. tractable09

    Evaluation of ion exchange resin-water treatment

    Dears, I am new to water treatment side and I am given a task to evaluate existing ion exchange resin performance. In a simple flow scheme, Water at 230 T/hr is passed through a cation exchanger ----->Anion Exchanger.......>Mix bed polisher.......>polish water tank. I have started with Cation...
  8. tractable09

    Orifice sizing clarification

    Do I need to use expansion factor? As Press drop/Inlet press= 0.004, and this gives Y~1. I've taken above equation from crane papers. Pipe ID=6 in. CJKRuger, can you cross check? Regards,
  9. tractable09

    Orifice sizing clarification

    I am new to orifice sizing. I am verifying the data from our contractor who sized a flow orifice on a medium pressure (43 bar) steam line to a turbine.Following data is available. Full range flow = 10000 kg/hr Operating flow = 5000 kg/hr Opt. temp = 371 C Opt press = 43 kg/cm2 Density (Ro) =...

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