LDM Student

  • Member since Apr 29th 2017
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  • LDM

    Post
    (Quote from THHuxleynew)


    The following quote is from appendix 2 of the report

    In order to determine the nature of the material covering the reactor, a sample from one of the ridges was analyzed.


    As far as I know the rods had no ridges, but the reactor…
  • LDM

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    Paradigmnoia

    Although the error % seems large for the coolest end of the rods, the final W difference, in terms of the total power budget, should still be rather minor. I believe that I had a similar result when I did it, and it did seem to be
  • LDM

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    Paradigmnoia

    For your info


  • LDM

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    IH built the Lugano reactors, three of them, and were surprised by the paint, so your theory doesn't work.


    The argument goes also otherwise. The outside of the ECAT was by analyses almost 100% Alumina.
    So in the same way we can argue that the theory…
  • LDM

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    AlainCo  


    I understand now why the manufacturer of the IR cam advise to calibrate, and not to trust any emissivity number...
    Alain,


    While radiated heat transfer is part of the calculated power and emissivity can then be important, the above posts are…
  • LDM

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    Zeus46


    Newtons law of cooling is likely too over-simplified to give an accurate result, especially over a wide variation in temperatures. It assumes that each unit area transfers the same amount of heat (And also that h isn't affected by T).

    The…
  • LDM

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    Lugano rods convection heat transfer coefficients

    The convective heat transfer coefficients used in calculating the convective powers for the rods can be calculated.
    We do this by using Newtons law. Newtons law is given by the following formula :

    Q =…
  • LDM

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    (Quote from Shane D.)


    Thank's

    I used the average of both the values with no bias and high bias to get to about the same values as Thomas Clarke reported.
    However if you are not using the high bias (Which brings the values down), but only the normal…
  • LDM

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    (Quote from Paradigmnoia)


    Running his original code gives a COP value of about .75 for the dummy run.
    After applying the corrections the COP of the dummy run is about .85

    But TC had some possible valid arguments that apply to the dummy run.
    These…
  • LDM

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    Thomas Clarke's report corrected

    Thomas Clarke, in his report 'Comment on the report “Observation of abundant heat production from a reactor device and of isotopic changes in the fuel” by Levi et al' recalculated the COP value of runs 3 and 12 of…
  • LDM

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    (Quote from THHuxleynew)


    For your info, I was in the past on ECAT world, but moved here because in my opinion they where not allowing criticism.

  • LDM

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    (Quote from THHuxleynew)


    I did not say that I can prove that the Lugano testers made big mistakes !
    The only thing I said is that further analyzing can help to get a better understanding of what is the truth.

    But I am interested in Levi's remark to…
  • LDM

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    (Quote from Paradigmnoia)


    Let me also outline my position.
    Was the conclusion of the Lugano testers that the ECAT worked correct ?
    I don't know.
    Did the Lugano testers exactly do what was written in the report and used broadband emissivities on their…
  • LDM

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    Thomas Clarke's Band emissivity curve

    In his report Thomas Clarke calculates in his Python program the in band emissivity curve for Alumina.
    While his Python program presents this curve in a separate window, the curve was not included in his document.
  • LDM

    Replied to the thread Clearance Items.
    Post
    I am shocked.




    Sorry, it was not my intention to shock you.
    Also because you have been and are making for a long time contributions in the discussions on this forum which I realy value.
    And I hope you are continuing to do so.


    They explain explicitly
  • LDM

    Replied to the thread Clearance Items.
    Post
    (Quote from Zeus46)


    It's not about paralysis. The thing is that if some parts of the analysis is not done properly, there will be comments (and waranted) that the result of the analysis can not be trusted.
    And I am not in a hurry, do this as a hobby and…
  • LDM

    Replied to the thread Clearance Items.
    Post
    (Quote from Zeus46)


    It is about errors.
    You want to make the error band of your calculations as small as possible and that, in my opinion, warrants the fine analysis.
  • LDM

    Replied to the thread Clearance Items.
    Post

    Finer-tuned surface area and view factors may improve power estimates of the Lugano device somewhat, but do nothing for the conflation of spectral and total emissivity for the IR camera setting, by which the temperature of the Lugano reactor was
  • LDM

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    Just to clarify a bit about this:


    The calculated power of the Rods for the active portion of the demo is displayed in the Lugano report (Table 5, page 20).
    They would have had to have applied the 2/3 factor to each displayed value before inserting
  • LDM

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    Thanks !