Holcomb Energy Systems:Breakthrough technology to the world

[bistander]

One last comment on this and then I'll shut up about it.

Bi,
Why not use stainless? Cost. Mu-metal could block the path by increasing the reluctance.

Cadman,

Just the opposite. Reluctance is inversely proportional to permeability. Mu metal has much higher permeability than electrical grade steel. Therefore replacing core or shaft material with mu metal will lower reluctance.
bi

[Feb2006]

I think a linearly traveling magnetic field within a magnetic field
is one of the keys to the HES or am I wrong ?


HES does it one way, here's another way.
https://www.youtube.com/watch?v=uf_Z57gAJTc

[onepower]

Feb2006

I think a linearly traveling magnetic field within a magnetic field
is one of the keys to the HES or am I wrong ?
HES does it one way, here's another way.
https://www.youtube.com/watch?v=uf_Z57gAJTc

That's an excellent video and explains a traveling magnetic field really well. However this technology has been around a while and one would think if there was an anomaly it would have been found by now. I was doing some similar experiments on shaded poles which can also produce a traveling magnetic field but the shading coils produce more losses.

Regards
AC

[SolarLab]

Hello Bistander,

Yes, Ok, exactly like you have said..."to control the Flux pathways"...thanks, I understand that I am setting an air gap between them, however, when magnetic circuit is closed by rotor, it will comprehend more stronger (related to flux strength/flow) the tooth which are closer gap to rotor drum face...is what I believe...am I wrong?

You or Solar Lab could put that design in FEMM and see what I mean.

Yes, first graph is wrong related to number of tooth...it is supposed to reach 6 tooth, like shown on second image.
Remember the field according to brushes angle I have, have two positions for the -/+ electric poles which defines the field angle, which I could narrow or set it wider, I only have two positions.

Regards

Ufopolitics

Not a comprehensive anything - simply a 2 cent approach comment.

Download Ansys Electronics Desktop Student (no registration or login or email required). Simply download and install.

https://www.ansys.com/academic/students/ansys-electronics-desktop-student 

Run Ansys EM Student 2022 R2 | Ansys Electronics Desktop 2022R2. 

{Optional step: Open examples - Maxwell | Actuators | Rotational_actuator.aedt  => should be ready to analyze.}

Project | New [from the ribbon] Maxwell pulldown | Maxwell 3D (opens design desktop) 

From the "top" ribbon - "Help" | Maxwell PDFs | Maxwell Help 

In the PDF, Chapter 9 - RMxprt UDPS (user defined primatives) and Chapter 26 - Getting Started with RMxprt [read]

Next, back to Ansys program (still open) | from upper ribbon select "Draw" | User Defined Primative > RMxprt, now
select the type of rotor, core, coils, etc for your design. Fill in the parameters as required.
Note the bottom line of the parameters list usually has a "multiple choice number" to select options [0:core; 1:solid core
and so forth]. {Only a starting point to get you going.}

This is an aid in setting up your design - motor orientated - but you can select the windings, current, terminals, etc.
to accomplish your Holcomb configuration. 

Student version might not have enough poop to do a complete rotary design configuration - so some intuition might be needed.
Maybe restricting the mesh size, etc. and partitioning will keep your size limits within student limitations, don't know. Try it, very
little to loose and you might learn something in the process. 

Holcomb used a CAE firm/university in Australia to assist in his development.

Why bother with this approach (it's an option, even if you're the smartest person on earth and know every bit theory and practice
there is to know) because - you know your design will work before spending one dime; you have the drawings for the laser cutter
(saves money on backend engineering and Laser GCode generation) and you have a serious head start on the insitu testing and
varification! You know how it works, what to look for, and how to look.

Just a 2 cent comment on a tried and proven approach, that's all!

[SolarLab]

 Noticed the "open examples" - maxwell | actuators | rotational_actuator.aedt  opens desktop in a reduced window;
maximize this window. 

Also, the model is in wire frame - right click on a blank spot and select "View" then select "Render" (near the bottom
of the list) | "Smooth shaded", or just use (F7). 

Project Manager | Rotational actuator (Magnetostatic) already contains "Results" plots and "Field Overlays" | "B" | - Vector1 and B1
cartoons - but the solution must be obtained first to display these === right click "Analysis" and select
"Analyze All" - save the design in a temp location first.

To quickly see the solve time, results, etc (lower ribbon | Results | Solution Data. Profile shows solution took
about 01:23 on this PC - memory 62.1 M, Tetrahedra: 24954.  (well below student limit)

Some good Tutorial example videos, etc. are found on YT (Bishwas Basnet, kamyar K, etc.)