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  • Users: poseilus
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  1. poseilus

    Calculate the pressure of propane in a vessel

    Thank you all for your help. I know now a lot of ways to determine the pressure of propane. About Antoine equation i am trying to find out those constants on the web without any good result. There is also wagner equation that I will try to figure out how it works.
  2. poseilus

    Calculate the pressure of propane in a vessel

    This very good idea. I guess I can do that with other physical properties like viscosity? Thank you.
  3. poseilus

    Calculate the pressure of propane in a vessel

    Is there an equation from where I can calculate the pressure of propane inside a tank if I know the temperature of the liquid? This pressure is constant, when the vapour and liquid phase come in equilibrium.
  4. poseilus

    Propane/Butane vaporization calculation

    You are actually right montemayor. I talk about propane/butane mixture (this mixture varies, it usually is 80%propane 20%butane and is called propane, but when it is 20%propane and 80%butane it is called butane). These are the two typical products that LPG storage facilities handle. For each...
  5. poseilus

    Propane/Butane vaporization calculation

    Thank you for your help, I have a LPG manual that has a way to determine propane vaporization capacity. It says if D outside diameter L overall length in inches of the storage tank and K a constant for percent volume of liquid in container then e.g. when 60 percent of liquid is in the storage...
  6. poseilus

    Propane/Butane vaporization calculation

    Hi, I am trying to find out a way to calculate the rate of vaporization of butane/propane inside a storage tank at various temperatures. Can you please help me? Happy new year
  7. poseilus

    Spherical tank calibration

    Hello, merry christmas to all. We have a pressure vessel, spherical tank for the storage of LPG. I am trying to find out any codes/standards that will guide me through this procedure. This tank is already calibrated by a strapping method. The first way was to measure a vertical and horizontal...
  8. poseilus

    LPG pipe sizing

    Thank you Montemayor. While calculating the friction losses what should I consider as a max speed of LPG in a pipe. Specifically are there any limitations on the speed of LPG at liquid and at gas state? How can I find the Technical Paper No. 410 free? Thank you for your precious time Happy...
  9. poseilus

    LPG pipe sizing

    I am trying to calculate friction losses in a pipe in order to find out what size of pump I will need. LPG in a liquid state is transfered through this pipe. For this case am I supposed to assume the LPG liquid as an incompressible fluid and use the moody diagram? At the end consumers where...
  10. poseilus

    Velocity of compressed air inside pipe

    Thank you for this info. I can understand now what is the difference between air and liquid. I will look for the mollier diagram
  11. poseilus

    Velocity of compressed air inside pipe

    Can I use moody diagram for compressed air or there is some other mathematical simulation for this case? I want to calculate basically friction loses inside compressed air pipeline. Thanks in advance.
  12. poseilus

    Radaelli air compressor

    Hello, I have an air compressor Radaelli. And I am looking for the company Radaelli on the web so that i can find a phone number in order to get my compressor fixed. But I cannot find a webpage of Radaelli neither a phone number. Can someone please tell me where I can find Radaelli? The type...
  13. poseilus

    LPG tanks standard

    Can someone please tell me which is the API standard for the design of LPG tanks?
  14. poseilus

    autocad libraries

    Hello. I am trying to find autocad libraries for free. Any kind would be useful. I use Autocad 2005. THanks in advance
  15. poseilus

    Heavy fuel oil physical properties

    Hi to all, I am looking for physical properties of heavy fuel oil at various temperatures. Are there any websites that I can get this info from? Or any other reference that could help me. I basically want to calculate heat losses from a storage tank. In order to do that I need to calculate...
  16. poseilus

    Heat transfer coefficient calculation

    Hi athomas236, thank you very much for this information. Could you please tell me where I can find this info? I searched ASTM I only found ASTM C680 with a title STANDARD PRACTICE FOR ESTIMATE OF THE HEAT GAIN OR LOSS AND THE SURFACE TEMPERATURES OF INSULATED FLAT, CYLINDRICAL, AND...
  17. poseilus

    Heat transfer coefficient calculation

    Hi to all, I am trying to calculate the heat transfer coefficient for different fluids on various surfaces. I would really appreciate if you could give me any information around this subject. Also a program would be more suitable. Mostly I am interested in calculating heat transfer...
  18. poseilus

    Chimney cross section selection in central heating

    Thanks lilliput1 for this info. Where can I find the International Mechanical Code? Or the power plant engineering textbook?
  19. poseilus

    Chimney cross section selection in central heating

    Hello to all, I am trying to find required chimney cross section for a 47kW power central heating system. I have used until know the following equations: from DIN 4705 Redtenbacher that gives me a 0.037 square metres Another one is Plewa and it gives me 0.03 square metres and a last one from...
  20. poseilus

    Calculate speed of water in pipe and drop of pressure

    it was my mistake I was using e in mm instead of m thank you

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