me356: Reactor parameters [part 1]

    It has window and is capable of measuring Alpha, Beta and Gamma radiation types separately/together by changing different shielding.

    Edited 3 times, last by me356 ().

    I look forward to seeing pictures and video.


    The more details, the finer the details, the better.


    Sounds like you are making good progress. Keep up the good work.

    Calibration test is coming soon!


    I have all needed parts, yet I have to build the reactor now.


    I have succesfully tested my electronics now which include:
    - Transformer
    - Triac Board (will be better than thyristor) - SSR solution does not worked as expected.
    - Reactor Controller with sensors
    - Data logger and Streaming machine


    Calibration tests will show if there could be any problem, but I hope it will work very well.
    Streaming machine will stream online including realtime reactor data. So everybody can see exact measurements without any delay.


    Reactor Controller has own firmware that supports many modes, can be updated remotely, stopped, restarted, modified without touching it. It has PID regulation - already tuned.
    Same with Streaming machine. It will work separately, but will be connected online.


    Firmware is prepared even for SSMs.

    Yes, except that I have bought cheaper model. Logging feature is still there but you can't read the data in realtime. So I will be reading the data by camera and periodically from the log via USB.


    Interestingly this counter is turned on all the time, it can't be turned off. And it should last for 10+ years with this one battery charge.
    Basically it measure radiation "endlessly".

    Can somebody share tips for wrapping kanthal wire on the ceramic tube?


    It should be done very precisely to avoid local overheating.
    I have tried some methods, but it seems that wounding on the screw-thread is working fine.
    For 16mm tube it seems that M16 screw with fine pitch (1.5mm) could be good.
    So to get 10 ohms 20AWG Kanthal A1 wire 64 wraps is needed. This will take 96mm of the 100mm tube - perfect fit.

    Quote from me356

    Can somebody share tips for wrapping kanthal wire on the ceramic tube?


    It should be done very precisely to avoid local overheating.



    I would suggest to make the coil on the ceramic with 2 wires all together in close contact. The kantal one and a dummy cooper the dia of which will precisely set the pitch of the coil.
    Then remove the cooper one.

    Well, I think it could work.


    Firstly I have used lathe machine that wrapped the wire on 14mm metal tube.
    Then after placing the coil on 16mm ceramic tube I have used copper wire with proper diameter and wrapped it by hand to place kanthal wire very precisely.
    Lastly I removed copper wire carefully and the result is quite good.


    Now it is time for sealing kanthal wire with alumina cement.

    Thank you.


    There will be live data with interactive plots available for all and hopefully camera as well. So everybody can see exact details and progress.
    I am considering live stream, but YouTube is streaming with approx. 1 minute delay while our live data are plotted online with approx. 20ms delay only.


    For sure I will be using camera stream internally but we will see. In the worst case I will provide screenshots periodically.

    Edited once, last by me356 ().

    Like 2
    • Official Post

    This looks very promising @me356 !


    But take care of yourself!


    Keep in mind the dangers of LiAlH4.
    Insert a smaller amount of fuel first Maybe 10 mg in total instead of 1 g (Same ratio of Ni and LiAlH4 of course), you should still be able to detect any excess heat and possible explosions will be a lot less severe.


    Could you maybe try the following after the test in order for the theorists to be able to cross-out a number of theories?


    After the test with the electrical heater, could you try to heat the reactor in burning coal chimney?


    Just some coal from the home improvement market should be fine.
    Then blow enough air with bellows so the coal heats up to ~1000°C.


    Then after waiting some time remove the reactor from the coal and quickly put it in a heat insulation (Thick aluminum foil).


    This way we could confirm or cross-out a number of theories which state that electromagnetic fields are additionaly required to thermal heating or not for the Rossi reaction.


    Because if some of them are right the reactor will continue to run in self-sustain mode after you put it in the foil if the insulation is good enough.


    By the way: If you need metallurgical and electronical equipment I can supply you with components!

    Nice follow on suggestion, Majorana, at least in principle.


    But use Fiberfrax or its equivalent as insulation. Aluminum foil is not an insulator (its a conductor and reflector only) and melts well below 1000 degrees F, and far below 1000 C. Rather than use coal, try a propane or MAPP gas torch-- much better control, much hotter flame and even hotter for MAPP gas. Keep in mind that the Al2O3 cannot survive above about 1500 C, although some modified (for example partially yttriated) forms might go higher.


    Longview

    Thank you very much.


    I am able to test it later too.
    I want to replicate Parkhomov work first, thus I will use identical setup as much as possible.


    Indeed, safety in the first place. I think that loading the fuel is the most dangerous part of this experiment.


    I have placed my reactor to the separate building where it can't cause any damage.
    Everything is controlled approx. 50m away from my laboratory.


    At the moment I am tuning PID even more.
    Setpoint is 700°C and should be reached within one hour.

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