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Author Topic: Serious HES derivative project proposal  (Read 29496 times)

SolarLab

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Re: Serious HES derivative project proposal
« Reply #120 on: April 09, 2023, 02:20:55 AM »
B-H Loop Operation Efficiency (Several Methods)

Reference:   Steered Flux Generator   -  US 20140265709A1
https://patents.google.com/patent/US20140265709A1/en?oq=US+2003%2f0168921+A1

[0239] Additionally, the overall efficiency is also affected
by core loss. This occurs due to hysteresis and eddy currents
in magnetic material. Such as 3% silicon steel laminations.

For simplicity, the BH loops shown in FIGS. 1, 4, 44, 45, 46.
and 47 are shown as straight lines. However, they are actually
loops as shown in FIGS. 38 and 39
. The loops are caused by
the energy required to reverse the individual magnetic
domains within the laminations. The area enclosed by the
loops is proportional to the energy required. This lost energy
shows up as heat in a generator.
 An equation that expresses loss in watts per cubic-meter when
frequency is expressed in Hertz and flux density is expressed
in Tesla:
    P=5.63*(Freq 1.532)*(B11904-B20.904)

 [0243] CEPG generators have bipolar flux and saturate the
material in both directions. In that case B2=-B1 which results
in a large flux density change of B2+B1 and therefore there is
lots of loss.

This can be seen in FIG. 38. The large enclosed
area as 1 represents the loss for a traditional generator.

In contrast, the Switched flux generator of the present invention
uses unipolar flux operating on a minor loop. In that case, B2
is the same sign as B1 for a small flux density change of
B2-B1 and the loss is substantially reduced.

This can be seen in FIG.39. The small enclosed area identified
as 1 in FIG.39 represents the loss.

From computer simulations and the equation noted above,found
that B1 =1.329 Tesla and B2 =1.142 Tesla. Therefore, it is believed
that the ratio of loss for traditional generators to switched flux
generators could be as high as 7.104.

In other words, because of operating on a small minor loop, and
based on the above equation, it is expected that structures of
the present invention can achieve up to a seven-fold reduction
in core loss for each kilogram of material.

NOTE: Eddy Current Loss is reduced by using compressed powdered materials (SMC)
and Hysteresis Loss is reduced as shown above.


SL

SolarLab

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Re: Serious HES derivative project proposal
« Reply #121 on: April 11, 2023, 02:52:26 AM »
SMC Press Update

Very impressed with the fancy 30 Ton Press (expensive and heavy [~90lbs] but well worth it).

Busy doing some adamix compounds, etc. and testing - but becoming convinced this is a GO!
Easy to use and the preliminary results look good - cost effective powders and much quicker
than cutting, stacking and clamping laminations. Plus, the results, so far, are remarkably similar.

Attached a paper that sheds some light on why this 30 Ton (~420 MPa) might just do the trick.
Note the included "Final Pressure" and "Three Phases" graphs. Going to 60 Ton (~ 820 MPa) may
not be worth it for lab development work; production, probably worth it.

Well, this kind of wraps things up for me with respect to the "LinGen" fabrication approaches.

Hope Ya'All had a great Easter break!
SL


rakarskiy

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Re: Serious HES derivative project proposal
« Reply #122 on: April 11, 2023, 08:10:51 AM »
Hello SolarLab

Quote
https://overunity.com/19375/serious-hes-derivative-project-proposal/msg576334/#msg576334

I think my material will be useful to you:

https://rakatskiy-blogspot-com.translate.goog/2022/11/blog-post.html?_x_tr_sl=ru&_x_tr_tl=en&_x_tr_hl=ru&_x_tr_pto=wapp

*****
https://en.wikipedia.org/wiki/Flux_switching_alternator

The generators OU at Flynn (USA) and Kornilov (RF) are built on this principle. Currently, both are dead and the technology is classified or destroyed.

the first machine on a similar principle was built in Germany (1934-35):

https://patents.google.com/patent/US2116353A/en

kolbacict

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Re: Serious HES derivative project proposal
« Reply #123 on: April 11, 2023, 06:32:15 PM »
Well,here is picture of magnetic field within stator having single winding.
Maybe anyone will be interesting.  There is nothing rotating,but rotor nevertheless rotate.
the gap of line on the scope is where placed short circuit winding.

p.s.
Quote
the first machine on a similar principle was built in Germany (1934-35):
I have that on the benzin electric generator. :)

Cadman

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Re: Serious HES derivative project proposal
« Reply #124 on: April 12, 2023, 03:02:48 PM »
SMC Press Update

Very impressed with the fancy 30 Ton Press (expensive and heavy [~90lbs] but well worth it).

Busy doing some adamix compounds, etc. and testing - but becoming convinced this is a GO!
Easy to use and the preliminary results look good - cost effective powders and much quicker
than cutting, stacking and clamping laminations. Plus, the results, so far, are remarkably similar.

Attached a paper that sheds some light on why this 30 Ton (~420 MPa) might just do the trick.
Note the included "Final Pressure" and "Three Phases" graphs. Going to 60 Ton (~ 820 MPa) may
not be worth it for lab development work; production, probably worth it.

Well, this kind of wraps things up for me with respect to the "LinGen" fabrication approaches.

Hope Ya'All had a great Easter break!
SL

Hey SL,

Are you pressing laminations or a solid core? Any tips to share?

My build is almost ready to take take off. The laminate molds are done and the coil bobbins are printed and will be ready to wind as soon as the support material is cleaned off.
The rest of the powdered iron has been delivered, both kinds, and the 26ga wire is in transit.


SolarLab

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Re: Serious HES derivative project proposal
« Reply #125 on: April 16, 2023, 05:17:39 AM »
Hey SL,

Are you pressing laminations or a solid core? Any tips to share?

My build is almost ready to take take off. The laminate molds are done and the coil bobbins are printed and will be ready to wind as soon as the support material is cleaned off.
The rest of the powdered iron has been delivered, both kinds, and the 26ga wire is in transit.


Hi Cadman,

Looking forward to hearing how your laminate molds work out - a "first pass" is always exciting and a major step! Be it  :)
or  :( - either way...

Tried a slab with some sample powder mix (a bag some firm sent me but don't really know what it's composed of; you know, the old
proprietary, super secret stuff) but it worked out ok. Except a bit of mold sticking; probably due to not an even PAM spray mold coating.
Cut the slab and briefly measured the square blocks B-H - encouraging so far.

Will be tied up for a few (likely) weeks as I move into a new Lab with a seperate Fab area. PITA since the CNC Machines have to be moved,
tramming can take a few days or more; plus, sorting (playing) with all the stuff I'd put in the corner and forgotten about. Should be quite
nice however so it will be worth the time taken.

Good Luck (fingers crossed for ya) !

SL





floodrod

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Re: Serious HES derivative project proposal
« Reply #126 on: May 13, 2023, 04:22:22 AM »
Cadman-

How's she coming?

Cadman

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Re: Serious HES derivative project proposal
« Reply #127 on: May 13, 2023, 02:00:15 PM »
Hi floodrod,

Slowly making progress.

Narrowly avoided disaster last weekend, I screwed up the resin mix by thinning with too much denatured alcohol. It took 4 days for the castings to harden enough to remove from the molds. For awhile I thought the molds were ruined for sure. I hope to restart casting this weekend.

More electronics have arrived and the pole changing, pulse/pwm/recovery circuitry is nearing the assembly stage.
 
Finished winding the coils just last night. 36 coils, 4 ‘pies’ per coil, 100 turns per pie, 14,400 turns total.

Still have to learn how to use the STM32 but I don’t anticipate any difficulty with it.

Getting there. Thanks for asking.


kolbacict

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kolbacict

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Re: Serious HES derivative project proposal
« Reply #129 on: May 21, 2023, 09:48:10 AM »
For what do all these motors have an iron laminated ring between the stator and rotor?
After all, this shunts part of the stator magnetic flux.Making the magnetic flux weaker.

bistander

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Re: Serious HES derivative project proposal
« Reply #130 on: May 21, 2023, 05:39:04 PM »
For what do all these motors have an iron laminated ring between the stator and rotor?
After all, this shunts part of the stator magnetic flux.Making the magnetic flux weaker.

Hi kolbacict,
Verify pieces are ferrous. Look like Aluminum alloy to me.
bi

kolbacict

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Re: Serious HES derivative project proposal
« Reply #131 on: May 21, 2023, 08:11:24 PM »
Nope. Tried with a magnet. iron.
I will even say more, I removed this ring.
As a result, the current consumption has doubled, and the motor began to rotate poorly.

bistander

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Re: Serious HES derivative project proposal
« Reply #132 on: May 21, 2023, 08:34:20 PM »
Nope. Tried with a magnet. iron.
I will even say more, I removed this ring.
As a result, the current consumption has doubled, and the motor began to rotate poorly.

Interesting. Rotor appears to be cast cage type for induction motor. Perhaps interpolar shunts cause delay flux simulating RMF. How are the 4 coils wired to source? AC or DC? No clues from where it came?
bi

{edit}

It is a shaded pole induction motor. Google search (images) displays examples of iron surrounding rotor like that. It is not obvious where the shorting(shading) coils are, perhaps cast into the housing end caps on the rotor bearings. Single phase AC fed.
« Last Edit: May 21, 2023, 10:52:10 PM by bistander »

kolbacict

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Re: Serious HES derivative project proposal
« Reply #133 on: May 22, 2023, 08:57:18 AM »
Perhaps interpolar shunts cause delay flux simulating RMF. How are the 4 coils wired to source? AC or DC? No clues from where it came?

It don't have interpolar shunts.
Very often used in tape recorders and record players.

rakarskiy

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Re: Serious HES derivative project proposal
« Reply #134 on: May 22, 2023, 11:55:26 AM »
It don't have interpolar shunts.
Very often used in tape recorders and record players.

Want to check if the pump will work?  ;)
https://www.youtube.com/watch?v=vZX0m6BV_v0&t=1s