Can Intermediate

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  • Can

    Like (Post)
    Guess: a "COP" of power-out/power-in that uses a rolling average should use a window larger than the time constant of the calorimeter in order to avoid misleading excursions (both positive and negative).
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    (Quote from Argon)


    They appear to be deviating because the values themselves are constantly growing larger over time, while their ratio is only very slowly tending towards 1.
    Simply put: the 92% of 250 is 10 times smaller than the 92% of 2500.
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    (Quote from Argon)


    Here are the last 10 rows of data from those columns. The COP calculation (out/in) seems consistent with what the graph is showing.

    Date_Time Energy_Out_Wh PCE-830_Whr Cumulative_calorimetry_COP
    2017-05-27 18:15:35.919932
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    If I calculated everything correctly, the blue line in the graph below is the cumulative energy out/in COP using the PCE-830 power analyzer reported cumulative watt-hours and computing the cumulative energy out from the temperature rise at the heat…
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    Eric Walker

    No, I thought that you could get infinite COP by turning power off. /s
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    If results were supposed to be in the 1.10-1.20x ballpark then other methods would have been chosen, not water flow calorimetry with crudely insulated heat exchangers, open water buckets and 50 Kg scales.

    EDIT: the opening post of this thread by David…
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    Henry
    The expected result was something quite large like for example a COP greater 2, and possibly >10 with peaks of 40 as previously suggested by Bob Greenyer. I don't think anybody - except perhaps people on ECW - is looking at +/- 10% fluctuations…
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    Alan Smith
    Below is attached a more complete graph. More than input power, the water temperature peaks seemed dependent on water flow, which wasn't constant.
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    Argon
    I don't think water was recirculated. Input water temperature was low and rather constant.

  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    There was a problem in my previous graph (in short I thought the data sample rate was lower, without checking first). Here is one which (hopefully) truly shows a 15 minutes non-centered rolling average of the instant COP values produced during…
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    Both power meters seemed to agree on current, voltage and power, according to the data.
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    To me that reads like a flamebait attempt by another Czech-based user who often writes on LENR-Forum, not something that me356 himself wrote.
  • Can

    Post
    This is the usual graph related to this run. Since the steps were not uniform in duration I had to do some modifications to make the usual script work. Hopefully future calibrations will be done with a constant step duration (also taking into account…
  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    (Quote from Sherlock Holmes)


    Where are dollars in this comment?


    (Quote)

  • Can

    Replied to the thread me356: Photos of AURA control unit.
    Post
    (Quote from Sherlock Holmes)


    Millions of what?
  • Can

    Post
    BobHiggins
    If you're interested there's a command line utility which can generate and play sound like for example a sinewave. If this could be somehow integrated in your reactor script there would not be need anymore to have many different wave files.…
  • Can

    Post
    (Quote from David Fojt)


    Sorry, I was unclear. It was a possible answer to the question as for whether this behavior may or may not be useful for LENR.

  • Can

    Replied to the thread The Playground.
    Post
    (Quote from Ahlfors)


    Again: open your own thread in an appropriate section, perhaps even one in the same off-topic section which hosts the "Playground", so that the discussion can progress (or be made progress upon moderator request if necessary)…
  • Can

    Post
    As far as I am aware of, hydrogen initially decomposes from hydrides at the very least in atomic form, so if a large amount of hydrogen can be composed and recomposed in a short period of time, that also means that atomic hydrogen can be provided…
  • Can

    Post
    Here is data from the latest run. The vertical dashed lines denote where the calibration endpoints have been sampled (average of preceding 100 samples). Overall it seems that the calibration is about the same as the last time.





    BobHiggins
    Please…