Search found 2795 matches

by Giorgio
Tue Feb 23, 2021 9:38 am
Forum: News
Topic: More Helion Energy news....
Replies: 226
Views: 190122

Re: More Helion Energy news....

2. That divertor has a molybdenum-coated wall. 3. They have issues with high velocity plasmas causing arcing and erosion on that molybdemium coated wall. I am actually surprised that they are still experimenting with molybdenum coated divertors, this is stuff from 1980's and 1990's. There is alread...
by Giorgio
Mon Jan 25, 2021 10:26 pm
Forum: News
Topic: Polywell: "Final nail?"
Replies: 14
Views: 1751

Re: Polywell: "Final nail?"

RERT wrote:
Mon Jan 25, 2021 10:22 pm
Edits could be proposed for the Wikipedia page...
Indeed, but I have no idea how the procedure works.
If someone knows how to do it than changes should be done as that section is highly misleading.
by Giorgio
Mon Jan 25, 2021 11:48 am
Forum: News
Topic: Tokamak Energy news
Replies: 119
Views: 137539

Re: Tokamak Energy news

The direct conversion unit is still totally theoretical until now, so I would not dismiss it as a "solved issue", and this includes also the re-circulation of the injected power.
Selling Tritium could indeed be a good source of income for pushing the financing of additional research funds.
by Giorgio
Mon Jan 25, 2021 10:15 am
Forum: News
Topic: Polywell: "Final nail?"
Replies: 14
Views: 1751

Re: Polywell: "Final nail?"

I went to quickly read it back to refresh my memory. Here is the paper for everyone to read: https://ses.library.usyd.edu.au/bitstream/handle/2123/21070/bowden-reid_rd_thesis.pdf?sequence=1&isAllowed=y The Apparatus description and experimental runs start from page 53 And here is a passage of the la...
by Giorgio
Mon Jan 25, 2021 10:01 am
Forum: News
Topic: Polywell: "Final nail?"
Replies: 14
Views: 1751

Re: Polywell: "Final nail?"

If it's the final nail in the coffin for the Polywell, is it also the final nail for Lockheed Martins experiment, they have a lot in common. Did the paper also look at the results from the last EMC2 WB-X device? The test apparatus of the paper was just two magnetic coil rings parallel to each other...
by Giorgio
Wed Jan 20, 2021 11:43 pm
Forum: News
Topic: Polywell: "Final nail?"
Replies: 14
Views: 1751

Re: Polywell: "Final nail?"

I would say no. The experimental apparatus is different from a Polywell machine and the power and energy configurations are also order of magnitude smaller. The conclusions and explanation on why he didn't measure a potential well with this apparatus are indeed interesting. Interesting also the deri...
by Giorgio
Wed Jan 20, 2021 8:59 am
Forum: News
Topic: Tokamak Energy news
Replies: 119
Views: 137539

Re: Tokamak Energy news

Indeed Helion does not have to bother with divertors, but the trade off is that they need to develop a proper direct conversion energy system that is probably on the same level of engineering difficulty. But I think that their main problem will be to develop the 3He generation process (from the D-D ...
by Giorgio
Mon Jan 18, 2021 10:15 am
Forum: News
Topic: Tokamak Energy news
Replies: 119
Views: 137539

Re: Tokamak Energy news

My personal bet is that the first one that will solve "Divertor" and "First wall" engineering issues will be the winner.
by Giorgio
Mon Jan 18, 2021 10:05 am
Forum: News
Topic: Spherical Tokamaks
Replies: 32
Views: 29402

Re: Spherical Tokamaks

Yes, most of the models I saw have the tendency to have too many assumptions (mostly to reduce the computing power needed to run the simulation), but this in the end prevents to have a clear understanding of the equilibrium point of the interactions among the different forces, especially for what it...
by Giorgio
Sun Jan 17, 2021 2:39 pm
Forum: News
Topic: BLP news
Replies: 660
Views: 245341

Re: BLP news

If after all what happened in the last 20 years they are still able to find people willing to invest in their magical technology, than I can only say that those people deserve to part ways with their money...
by Giorgio
Sun Jan 17, 2021 2:37 pm
Forum: News
Topic: Tokamak Energy news
Replies: 119
Views: 137539

Re: Tokamak Energy news

Nice video indeed.
It will be be darn interesting to see the results of the 20 Tesla magnet on that DEMO4 test machine. If it follows the theoretical prediction than ST-F1 machine might indeed be the first fusion reactor of humanity.
by Giorgio
Fri Jan 15, 2021 4:31 pm
Forum: News
Topic: Spherical Tokamaks
Replies: 32
Views: 29402

Re: Spherical Tokamaks

Munchausen wrote:
Thu Jan 14, 2021 5:29 pm
Better performance is always benificial. One way or the other.
Absolutely true.
I was just pointing out that those are not data from a real machine for now but just the results of a numerical simulation, with all the limits and pitfalls of simulations.
by Giorgio
Fri Jan 15, 2021 4:23 pm
Forum: News
Topic: Spherical Tokamaks
Replies: 32
Views: 29402

Re: Spherical Tokamaks

I agree with that, but it shows that there is a path forward to do this IF engineering challenges can be resolved. Clearly there is a lower limit to the how small it can get, but it is still better than that ITER monstrosity, likely even better than ARC. Of course I fully agree. My concerns are mai...
by Giorgio
Wed Jan 13, 2021 10:54 pm
Forum: News
Topic: Spherical Tokamaks
Replies: 32
Views: 29402

Re: Spherical Tokamaks

"We find that for similar values of field and fusion power, but smaller volume, STs can have nTτΕ up to a factor of three higher and Qfus an order of magnitude higher than CTs." "Potentially our results open an alternative and faster route to fusion power based on relatively small, low power STs." ...
by Giorgio
Sun Dec 06, 2020 10:02 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 174
Views: 124059

Re: Z-Pinch Renaissance

Yes, input current needs can eventually be managed if they are able to reduce the radius of the pinch, so the MHD instabilities will be the beast to tame. I am also very happy to hear that they have enough funds to move on the research to clarify if they can make it feasible. Let's wait and see what...