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  • Users: Pieterv
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  1. Pieterv

    Flowrate of oil in an inclined returnpipe

    Hey, I try to estimate the possible flowrate of oil in a return pipe (pressureless) taking into account the viscosity, type of pipe,filling of the pipe. For water I use formula of Bazin. For oil I have no idea how to calculate. can you help me with this? Thanks
  2. Pieterv

    VSD control on old motor- cooling problem

    Hey, We have an application in which an old motor will be foreseen of a VSD control. Local consultants say we have to put another motor because it cannot be cooled sufficiently at lower speed (<50hz). Is that true, or can we put extra cooling to the motors at low speed; in case yes, how is that...
  3. Pieterv

    Nitorgen cooled bearings

    I'm looking for information on nitrogen cooled bearings. Can anyone help me. Pro's/con's. It's for an application in a Nitric acid evaporator. Thanks
  4. Pieterv

    Nitrogen cooled bearing

    Hallo, I'm looking for the best bearings for an evaporator working with Nitric acid. It seems the best bearings are nitrogen cooled for this application. Has anyone some information on this topic?

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