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  1. stberry

    Pressurized air release in a tank

    Hello I would like to know how much gas will be released in the condition below. There is a tank of 3 m3 which has a pipe end of 10 mm inside diameter. In the tank, air is stored at 140 bar.g I want to know how much air will be released at first when the pipe is cut. In other words, how much...
  2. stberry

    How to calcuate the pressure calculation

    Thank you MortenA sorry for confusing you. I don't know the pressure of head since there is no gauge. 5 bar.g air is indicated from 10 meters long from the head. Unluckily, I don't have API520, could you help me out? With best regards,
  3. stberry

    How to calcuate the pressure calculation

    Thank you very much djack77494 The condition above is simplized in order to ease calculation. Actual status is that sum of all cross sectional area of the holes are much bigger than the head's. therefore the current situation of our plant is that there is no flow at the last hole. So I have to...
  4. stberry

    How to calcuate the pressure calculation

    Sorry, I correct the hole size. Diameter of the hole size is 2 mm not 8 mm.
  5. stberry

    How to calcuate the pressure calculation

    Inside of the pipe is 10 mm not 10 cm. Thanks
  6. stberry

    How to calcuate the pressure calculation

    This is operation condition but simplified because I can't explain all conditions. Thanks
  7. stberry

    How to calcuate the pressure calculation

    Hello, I would like to know how to calculate the situation below. There is a pipe which have 10 holes having 8 mm diameter. The pipe is 5 meter long and inside diameter of the pipe is 10mm . The holes on the pipe are evenly devided. The pipe is located 50 mm high from the bottom of a tank...
  8. stberry

    Velocity difference between high point and low point

    Sorry, I modified some contents a little bit. ------------------------------------------------------- Dear all, I need help. Given: 1. There are two points. One of them is 1 meter higher than the other. 2. Water goes from the high point to the low point by gravity. I want to know whether...
  9. stberry

    Velocity difference between high point and low point

    Dear all, I need help. Given: 1. There are two points. One of them is 1 meter higher than the other. 2. Water goes from the high point to the low point by gravity. I want to know whether the velocity of the low point is constant or not regardless of the length of two points. Any help would...
  10. stberry

    Eccentric reducer position at a pump

    I have a problem. I know that top-flat position of a eccentric reducer is used at a pump suction when the pump is pulling water from a sump. However, I don't know which position of a reducer is correct between top-flat and bottom-flat when a pump is pulling water from a high level, higher than...

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