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  • Users: darai
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  1. darai

    maintaining liquid level in 500 gallon tank.

    how will you know to replenish the fuel if the level never reduces?
  2. darai

    Flow on sloped floor of tank - Bernoulli

    why don't you go "brute force" route? get you a dip stick, vary flow-in rates, measure corresponding heights maintained. That's how flow curves are validate.
  3. darai

    rubber coating solution.

    Don't see why you cannot. get in the lab and try!
  4. darai

    Battery Storage

    I assume your batteries are of the vented type. If so, not only must you comply with NFPA 70E-320.4(A), you must also comply with NFPA 70E-320.4(C). Obey the Inspector. Resistance is futile!
  5. darai

    Calculating Friction

    Eleventy (Mechanical): You need some tough love! You should be happy you have a job, and a good job too! So get over this crap about your bosses qualifications and get on with the task you were given Learn to use the spreadsheet! When he gets back and gives you an assignment that requires the...
  6. darai

    Reaction On A Inclined Plane

    Looking at the diagram provided, I am taking R2 to be the normal force. If theta is the angle of the incline, that is the angle the incline makes with the horizontal, then R2 = MG / cos theta which is consistent with the result Sharpman obtained, since 0<= cos theta <=1
  7. darai

    Reaction On A Inclined Plane

    SharpMan: Please post your solution to this problem so we can see how you get the numbers you post. Maybe then I can offer a helpful comment on the questions you asked.
  8. darai

    Wieght of copper

    Look for it here: http://www.relemaccables.com/XLPEcables.html
  9. darai

    Reverse Osmosis Water. Why so aggressive and what to do about it?

    I'd have a talk with the designer/manufacturer of the RO system.
  10. darai

    Water Cooler

    I would start by using Google. Know how to do that? Thinking, well, since I know so little about an oil mist eliminator, I'd google "oil mist eliminator" to get started. Is this too much work? More, never heard of a mechanical engineer/tech who never heard about heat exchangers! Exchange heat to...
  11. darai

    Voltage between phases (3Ph supply)

    Think about load balancing and all it implies.. very important
  12. darai

    [Topic] A little help in programing or same ideas whould be useful

    Don't see why you make this more complicated that it is.Have you seen how a selector system on a conveyor works? Usually that is a flapper that routes items one way or the other. So what you want to do is set the flapper in one direction and hold it there until you need to set it the other way...
  13. darai

    Location of Lighting Controls

    Permit me to first advise you to take the time to get familiar with the codes. When you do, you'd be able address with more confidence. Second and more important, you should know that the codes are ALL ABOUT SAFETY. So ask yourself, in this case which is safer: public access to the switches or...
  14. darai

    Why only &quot;even&quot; number of Generating Units in Power Station?

    Look all around you: 2 hands, 2 feet, 2 eyes male occurs with female = gettting even negative occurs with positive = 2 or 0, all is well whichever way you take it Guess the universe is in harmony only when everything works out even see, good and evil = 0, in nothingness is calm!
  15. darai

    heat transfer for molten wax

    Your problem is "dwell-time" after the fill. So what you really want to do is cool the filled containers, not the pre-filled paraffin wax ( Think about it, cooling the pre-fill will increase its viscosity and make it more un-economic to get it into the containers! So, first suggestion that...
  16. darai

    Anybody have experience embedding product in pop-up sponge?

    Roll up your sleeves, get in the lab and work.!
  17. darai

    Curing Epoxy resin Vs linseed oil on mild steel in nitrogen atmosphere

    Whatever happened to good old-fashioned experimentation? I think you'd get more reliable answers by getting a tank of Nitrogen and doing some hands on work. Seriouly. That's what I'd do.
  18. darai

    Designing a tubebundle for heating a tank, need help

  19. darai

    RO Design

    Ooops, should Date of Publication should be 1988!
  20. darai

    RO Design

    Look in: Walas, Stanley M. " Chemical Process Equipment", Butterworth-Heineman (1900) ISBN 0-409-90131-8

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