Search found 3140 matches

by TallDave
Wed Jan 10, 2024 5:30 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

Making some reasonable assumptions about Polaris dimensions, an accepting particle densities similar to those achieved with previous generations, I obtain that Polaris' tau(n) ~ 2.5 ms... So, 1 ms of fusion per second for Polaris thanks charlie, that sounds plausible to me For starters, Bremsstrahl...
by TallDave
Mon Jan 08, 2024 2:32 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

thanks mvan and charlie, I am a bit more interested in the compressed (fusing) plasma lifetime (since that's when power is produced), but the total pulse length might help us estimate utilization factor (the proportion of time that a reactor can spend producing power) which could then give us an ide...
by TallDave
Fri Jan 05, 2024 3:41 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

yes, instantaneous conversions are confusing... you have to mix energy (joules sitting in the capacitors pre-pulse) with power (watts flowing into the Polaris system to do various pulse-related things such as compress or accelerate the plasma (essentially transferring the energy), then flowing back ...
by TallDave
Tue Jan 02, 2024 9:36 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

thanks Skip, much appreciated been looking over Kirtley's paper, this seems to be the crux https://media.springernature.com/full/springer-static/image/art%3A10.1007%2Fs10894-023-00367-7/MediaObjects/10894_2023_367_Fig15_HTML.png so if that's accurate they expect usable power to be about 3x combined ...
by TallDave
Fri Dec 01, 2023 8:48 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

Well rail and road. Rail only gets you so far... depends what you're doing, heavy industry has traditionally been located along rivers and railroads for that very reason not unusual to find coal power plants with dedicated tracks the last mile problem has been around forever of course they probably...
by TallDave
Mon Nov 27, 2023 8:37 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

Sure, you can, but they won't fit through underpasses, you need special permits, it slows things down tremendously. Helion wants to produce (eventually) 20 machines a day. That is a lot of machines to transport. Tactics wins a battle, logistics wins the war. yes Kirtley says in the last video they ...
by TallDave
Mon Nov 27, 2023 4:48 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

Helion's magnets are just standard aluminum magnets. Not super conducting. I can't unfortunately give more details in their past magnet experiments. The alternative to stronger magnets are bigger machines. From what I understand, there is currently no noticeable limit for how big you can make them ...
by TallDave
Tue Nov 21, 2023 3:55 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

hmm otoh their machine is pulsed and I see LANL has achieved 100T(!) in a pulsed magnet, though apparently not SC and I'm not sure for how long so now I'm not really sure how hard 30T would be for FRC reactors Helion's probably thought about this a lot more than I have though, maybe they'll share so...
by TallDave
Tue Nov 21, 2023 3:45 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

fwiw Skipjack, agree it will be technically difficult to achieve 30T, suspect they are hoping Polaris results keep them under 20T for the next model 20T still seems to be practical maximum for SC magnets, but even at that size you'd have to worry about flux creep larger than that and you're trying t...
by TallDave
Mon Nov 20, 2023 5:27 pm
Forum: News
Topic: Helion Energy to demonstrate net electricity production by 2024
Replies: 660
Views: 104452

Re: Helion Energy to demonstrate net electricity production by 2024

the final magnet size would depend on a number of factors, they probably want to keep that as small as possible given how it drives final cost Trenta was 8T, and Polaris is 15T, so 30T is probably a reasonable guess for the first demonstrator plant ideally we'd see a commercial reactor eventually wo...
by TallDave
Thu Aug 30, 2018 9:46 pm
Forum: News
Topic: EMC2 news
Replies: 440
Views: 453683

Re: EMC2 news

Thanks for sharing crowberry.
by TallDave
Fri Jan 29, 2016 2:33 pm
Forum: News
Topic: LENR Is Real
Replies: 1780
Views: 811223

Re: LENR Is Real

parallel -- Thanks for keeping up on this in the face of a lot of negativity. Have you seen anything suggesting smaller units might be available soon? I worry that with the larger units Rossi may be at a price point where legitimate questions of reliability and controversy will prevent much success ...
by TallDave
Fri Sep 11, 2015 7:48 pm
Forum: News
Topic: LENR Is Real
Replies: 1780
Views: 811223

Re: LENR Is Real

Admit it, we all laughed when the MFMP device blew up on a live feed. It was funny. Well, it would have been less funny without the shield. http://energycatalyzer3.com/news/e-cat-replication-attempt-ends-in-explosion It's interesting we never heard back from Ahern. Oh wait, uh oh... Nice history her...
by TallDave
Wed Jun 17, 2015 7:43 pm
Forum: News
Topic: EMC2 has published a polywell preprint on arXiv
Replies: 145
Views: 159049

Re: EMC2 has published a polywell preprint on arXiv

Not that exciting, we already knew wiffleball confinement is a real thing, but nice to finally see this published.

It's interesting they talk about a reactor with 250MW input and 2GW output. That's a pretty hefty machine! I wonder what loss scaling assumptions went into that.