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Thread: ZFM Advanced Explorations

  1. #51
    Senior Member Yaro1776's Avatar
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    ZFM Tech Data etc

    Hello to all,

    Sun is finally getting higher and Spring does get the energy flowing again after the winter doldrums. The ZFM BiPolar switch has been refurbished and some initial test runs completed to verify the Bemf tests with the Cole Cemf circuit. The results are very close to the prior tests and do show the previous gains. Waiting on the other capacitors before finalizing these results.

    In the interim I am posting a number of charts depicting the performance of the current ZFM model without the Cemf circuit. The Charts are as follows - apologize for the use of .pdf's.

    The first chart depicts the motor input amperage versus torque load. These amperage values are simple way of describing how the motor behaves as the load is increased. You will note that this relationship is very linear with the amperage maximized at stall or zero RPM. The minimum amperage was at no load speed indicating the minimum draw created by friction, windage, etc. In all instances the ZFM was operated at 36 volts DC for consistency.

    ZFM Chart1.pdf

    The second Chart depicts the Output Power of the motor vs. Torque Load. The physical limits of the Torque testing device precluded data over the 900 gram point and below 250 grams, however the motor still had some good bottom end power, though unmeasured. The curve does demonstrate that the motor speed is very dependent on load for a given voltage. Varying the voltage can compensate for this inherent design trait and expand the usefulness of the ZFM.

    ZFM Chart2.pdf

    The third Chart depicts the Output Power vs RPM. One can expect the curve to further flatten out as the load is increased with the RPM continuing to drop. It does appear that there is a broad range of usable RPM.

    ZFM Chart3.pdf

    The fourth Chart depicts the motor Efficiency vs. Torque load and is, perhaps, the most interesting of the charts. The basic motor Efficiency appears to remain relatively constant over a wide range of Torque load.

    ZFM Chart4.pdf

    From a flexibility perspective the ZFM is able to respond to varying voltages as needed. The power output and input curves of the motor will shift to yield more speed and with more output based on higher voltage, the reverse is true for lower voltages.

    Done with this segment, ready for tapping the maples...

    Thank you for your attention!!!
    Yaro

    "The Universe is under no obligation to make sense to you." -Neil Degrasse Tyson

  2. #52
    Networking Architect Aaron Murakami's Avatar
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    Hi Yaro,

    I've been interested in seeing what a ZFM will do with a real core, but I keep seeing evidence that full air core is the way to go.

    There was an air core motor at last year's conference in the demo/vendor room and it has come a long way. It's like an SG but with air cores, using Babcock's switching method and going up in size and voltage takes the results to another level. It can go almost 10,000 rpm, turn a very conventional DC motor used as a generator, put out a constant 20 watts from that full Lenz effect generator and the batteries stay charged up.

    It's air core, but has a lot of radiant going to a recovery battery bank that really pushes it but the coils are pretty good size and there are maybe 8 of them.

    I think if there is a ZFM 4-5 times bigger than the one you are testing and you keep the voltage up around 48-60 volts that it would have similar results. Especially, applying everything you have learned so far. You and James together have more practical knowledge about the ZFM at this point than anyone else by a longshot.

    I'm still swamped with the MWO project but at least we've been over the hump since December - I still want to build one that is a bit on the larger size and would definitely would like to consult with you when that time comes.
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

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