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  1. giuman

    Pump modifications

    Dear All, Client needs to move installed submersible pumps from one point to another and this will imply to lower the pressure losses and to work in probable cavitation. Kindly ask if you know the operations to be done on centrifugal pumps in order to change pump's curve characteristics. I think...
  2. giuman

    Reverse osmosis permeate discharge pressure

    Dear All, I work in the water treatment field, especially in the design and construction of reverse osmosis skids. I would like to know why the discharge pressure of permeate water from Reverse Osmosis is always 1 bar, or tipically near atmospheric pressure. Also from literature is stated this...
  3. giuman

    flow of pipe from absorbed current

    Thank you very much for the help! Giuman
  4. giuman

    flow of pipe from absorbed current

    Dear all, I would like to know if it is possible to know the flow in a water pipe from the value of the absorbed current of the pump installed on it. Thanks in advance Regards
  5. giuman

    Pipe dimensioning

    Ok, I sincerely thank everyone Regards
  6. giuman

    Industrial plant electrical diagrams resources

    Hello everyone, I would like to read and interpret electrical diagrams (one-line diagrams, circuit diagrams..) of industrial plants (like industrial water plants), but I really don't know how to understand them, for example the symbols, exc... I'm an energy engineer so I don't know much about...
  7. giuman

    Pipe dimensioning

    Hello everyone! I'm involved in industrial water plants and I would like to know the following points: - given the P&ID, how to design pipe diameter (rating, DN, schedule...) given some input data (I think the flow or the the pressure) - what represents phisically the rating of a...
  8. giuman

    Pipe heating question

    Dear ione, thanks for the useful link! Do you know how can I estimate the mean rate of condensation (called "ms" in the link) in order to have the time required for heating the pipe? Can it be, let's say, a percentage of the inlet steam flow?
  9. giuman

    pipe rating question

    Hello everyone! Can someone explain me what is intended with "rating" of a pipe as per ANSI b16.34? I understand that for growing pressures and temperatures the pipe should be more resistant..but I really don't understand the true meaning of rating. Thank you in advance for answering me!
  10. giuman

    Pipe heating question

    Hello everyone! This is my first topic! I have a problem regarding heat transfer. I'm working on a power plant project fueled by biomass. As you probably know, boilers have blowers in order to remove dusts from the exchanging banks, and this is done by spraying superheated steam on the...

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