magicsound MFMP

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  • from Santa Cruz, California USA (UTC -8)
  • Member since Jul 19th 2015
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  • magicsound

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    I spent many years specifying and testing insulation products for acoustic applications. For situations where fire resistance is a factor, my preferred product is resin-hardened fiberglass board like this:
  • magicsound

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    Quick summary of recent Mizuno calorimeter replication and adjustments.
    I braced the new smaller air diffuser with a metal tile edge and spray painted it. Installed the pitot tube.
    Built a foam blower fan cover from 2 thicknesses of R10 pink foam board,…
  • magicsound

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    RGA post-analysis of the MR2.6 cell content showed contamination of typical atmospheric composition, N2, O2, H2O and OH-. Plenty of H2 and H3+ was also seen, but very little D2. This is surprising, because the only exposure to H2 was from the use of…
  • magicsound

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    MR2.6 was uneventful. The temperature matched calibration within 1°C at each power step and no radiation above background was seen. On a positive note the new streaming format worked very well and no crashes or dropouts were encountered.
    One observation…
  • magicsound

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    Now at 160 watts. The previous step temps were all spot on the calibration temps.
  • magicsound

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    MR2.6 (60..170 Watts) is now streaming live at:
    https://www.youtube.com/watch?v=b6koatFuDAk

    The first heater power step of 60 Watts will start at 17:00 UTC
  • magicsound

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    (Quote from Paradigmnoia)


    By 'smaller fonts' are you referring to the data cell labels? They can't be any bigger and still fit. The whole layout would have to be re-done.
    The 7-segment data numbers maybe could be made bold, I'll have a look next time the…
  • magicsound

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    Blue Screen Of Death that time. Rebooting everything, please stand by....

    Better now, no more -1000 degrees

    https://www.youtube.com/watch?v=7j83AZ710fY
  • magicsound

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    (Quote from JohnO)


    In response to popular demand, I've bigened the fonts and thickened the lines. Let me know if it's adequate for prime time now.

    https://www.youtube.com/watch?v=9GapsC5evwo
  • magicsound

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    I'm testing a new data stream format and would appreciate some feedback on the layout. It will run for a few hours more tonight, and should be viewable afterwards as well.
    https://www.youtube.com/watch?v=-iHEV9syV8E
  • magicsound

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    (Quote from Paradigmnoia)


    The important factor is having the heater inside something of substantial mass and limited thermal conductivity. Just putting some heavy pieces next to the heater won't have nearly the same effect on the temp vs time behavior.
  • magicsound

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    See if you can get a 2 foot (600mm) long piece of 4 inch (100 mm) cast iron sewer pipe. Maybe from a scrap yard or plumber's.
    It will weigh about 15 lbs and you can put your heater inside it. cover the ends with foil or something to restrict convection…
  • magicsound

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    (Quote from Paradigmnoia)


    Yes, and it also says "A pair of 20 kg versions were used with the new method, one for control, and one for the active cell." Those cells are shown in Figure 5 of the paper, and were the cruciform reactors to which I referred in…
  • magicsound

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    For reference, last July LDS Vacuum quoted $417 for a cylindrical conflat reactor in the R20 size (CF 600).
  • magicsound

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    (Quote from RobertBryant)


    From the published images it looks like the "cruciform" reactor was built with standard Conflat components. The assembly used four solid end caps and four bored caps on thee tube ends. The solid end pieces in the size for 100 mm…
  • magicsound

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    Heater power is not shown, only described as "120 Watts". If we assume that the heater power is continuous over the rising part of the curve, the system clearly had not reached equilibrium after about six hours.
    There is substantial mass in the Mizuno…
  • magicsound

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    This is better than Monday Night Wrestling...and no ads either.

    Seriously, Para is replicating the calorimeter, in the same sense that I'm replicating the reactor. In both cases it's an exploration of the parameter space for the "Device Under Test". That…
  • magicsound

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    (Quote from Wyttenbach)


    Are you suggesting that Hydrogen (or D) leaks out of the reactor cell into the calorimeter? Otherwise its proportion in ambient air is negligible (~5E-6 %).
  • magicsound

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    Before and after shots of the epoxy resin feed-through seals. May be good enough for plasma.

  • magicsound

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    The run using full data. Some odd variations in cell temperatures during the mid portion (was that also reflected in radiation data?) and last power step:



    Below also including the ambient temperature section after the test: