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  1. Superossido93

    Heat Transfer through lenses

    yeah, i'll go and see if i can find some reliable way to calculate he speed near that wall, but i already know it will be impossible. I probably will use the flow at the exit of the casing (i have to find the diameter if the exit, don't know where to look).
  2. Superossido93

    Heat Transfer through lenses

    No, I am not interested on the thermal camera, if it will work and how; i am only asking How can i Calculate the 3 convective coefficients. How do i calculate them? I found out that the property of steam at the exit(so near that window) flow=13,45 kg/sec entalphy=3004,3 kJ/kg
  3. Superossido93

    Heat Transfer through lenses

    Hi, thanks for your kind reply. First of all, @IRstuff: I am sorry, but i didn't mean i thought there would have been only convection, it would be nonsense. x1 and x2 are the thickness of the two lenses. The thermal conductivity of sapphire is 40 W/mK at 27°C and 4 W/mK at 1227°C(it is not...
  4. Superossido93

    Heat Transfer through lenses

    Hi to everybody. I am in a bit of a problem for calculating the various convective coefficients for the heat transfer through two lenses made of sapphire. I have to create a window that will let a thermal camera see into the medium pressure stage (and later i will do the same study for the high...
  5. Superossido93

    Steam flow through spillage in turbine

    Thank you stgrme, you bled to death my heart. I thought it was possible with pessure and area. Well, it was worth a shot. I will try and see if I can find that program that you mentioned, if not I will do with historical data. Thanks again
  6. Superossido93

    Steam flow through spillage in turbine

    Yeah, not as good as it could have been,since it is a really old machine, but I think the machine can't complain.
  7. Superossido93

    Steam flow through spillage in turbine

    3 in parallel with 4 in series. The image that i send previously was a good estimation of how the plant should work. Is there a way to calculate the separate bleed flows?
  8. Superossido93

    Steam flow through spillage in turbine

    EdStainless- Each Lp turbine has their bleed going into a total of 4 FWH ,so they are a total of 12 FWH, 4 for each LP turbine.(there is a "fifth" FWH solely attached to the High pressure bleed,so i donìt consider it for now). I saw for example that the LP turbine named "C" is a little less...
  9. Superossido93

    Steam flow through spillage in turbine

    here the link to my dropbox for a bettere resolution of the image https://drive.google.com/file/d/19jUsxGOWAY1CYL1Vm-wyodkIxCb9NMGr/view?usp=drivesdk as you can see, I attached the example of heat balance of the power plant. The problem is that it groups all the 3 LP turbines in 1, and I...
  10. Superossido93

    Steam flow through spillage in turbine

    yes
  11. Superossido93

    Steam flow through spillage in turbine

    yeah sorry, i meant bleed steam. Tonight i'll upload a draw of the schematic
  12. Superossido93

    Steam flow through spillage in turbine

    Hi! I have a Nucleare power plant operating with a regenerative cycle, that has also spillages in the High Pressure turbine and in the Low pressure turbine(they are 3 LP working in parallel). Hp and the 3 LP are biflux. Regarding the 3 LP, I have 6 spillage each, and the problem is that the...
  13. Superossido93

    Relationship between Reynolds and exponent n

    Hi, thank you for your reply. My pipe has an internal diameter of 311.8 mm, the temperature of the water is about 180 °C and pressure about 20 bara. Thus the velocity of the fluid is roughly 3.29 m/s for the flow rate of 900 m3/h( the velocity, and therefore the flow rate, is calculated by my...
  14. Superossido93

    Relationship between Reynolds and exponent n

    Hi,I'm an Energy Engineer from Italy. I have a problem regarding the measurement of the volumetric rate of a pipe using a transit-time ultrasonic flowmeter clamped-on the pipe. I already know that the flow is high( about 900 m^3/h) and the Reynolds should be in the millions(about 6 mln). I found...

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