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  • Users: SFTB
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  1. SFTB

    Measuring the Throat between blades

    Could someone explain to me how to measure the Throat between blades on a turbine. Do you have any link fora website that contains a scheme. I would like to develop an algorithm that calculates that automatically. Thanks,
  2. SFTB

    Filter specific area (Eazy one I think)

    Let say I hace a wiremesh filter or a filter like a sponge. Can someone tell me if the specific area of a filter like these is calculated per : 1)volume of material of the filter media only 2)volume occupied by the filter (including the void space) Thanks
  3. SFTB

    "Free Surfaces" in CATIA V4

    Could someone tell me what is considered to be a free surface or free curve or free point in CATIA. I've never seen that name for any features... Thanks for any hints on what it might be.
  4. SFTB

    Flat grey coating

    Hello, I have a very special application where I need to coat an aluminum (6061-T6) part to reduce the reflection of light/laser on the surface. Flat Grey paint is not a solution because it can chip and also because the coat thickness is non-uniform on the part. I already tried anodisation...
  5. SFTB

    Deposits in pipes

    Hi, I have a deposit problem in a 1 inch pipe. The actual velocity is 1 m/s (3.2 ft/s). I would like to increase the velocity to maintain conditions where it would be impossible to have deposits. I would be easy for me to go up to 16 m/s (52 ft/s) with minimum modifications. How can I choose...
  6. SFTB

    Plot question

    Hi, I not really an experienced AutoCAD LT user. I don't have access to a plotter, only a normal laser printer for 81/2" x 11" paper format. I have a drawing which would be better represented on 2 sheets rater than one. My question is : is there a way I could use 2 layout to print my...
  7. SFTB

    Potassium transformation Process

    Hello, I've been doing researches in patent database, Internet site from companies, chemistry books to retrieve information on the fabrication of KHCO3 and K2CO3. KCl (Sylvite or potash) is found in nature. TO produce potassium carbonate or bicarbonate, it is possible to use an amine and/or...
  8. SFTB

    Fortin Barometer

    Hello, I would like to know what company makes traditional Barometer (Fortin Barometer = mercury column). I'm unable to find one... Also, I remember using two correction equations for a mercury column. First correction was taking into account the lattitude of the location you're at and the...
  9. SFTB

    pneumatic diagram

    I'm looking for the right symbol to represent a pressurised CO2 bottle instead of a compressor on a diagram. Can someone refer me to a particular symbol or standard?
  10. SFTB

    Psychrometric chart

    Hi, I'm presently working on a custom application involving a Visual basic program to calculate the enthalpy of humid air to avoid looking in a psychrometric chart. I would like to now the way to calculate the water saturation value for a specific temperature. What is the exact equation...

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