Search found 6167 matches

by Skipjack
Thu Apr 08, 2021 7:47 pm
Forum: News
Topic: Helicity Space
Replies: 6
Views: 240

Re: Helicity Space

According the pdf you linked the fusion event happens in the compression coils, and the fusion power depends only on the number of plectonemic plasma beams joined together [Pf=~ N^(3/2) with N>>2 ], so mirroring would not create any additional benefit and increasing Pf would be just a matter to inc...
by Skipjack
Thu Apr 08, 2021 9:45 am
Forum: News
Topic: Helicity Space
Replies: 6
Views: 240

Re: Helicity Space

Short presentation from December: https://infuse.ornl.gov/wp-content/uploads/2020/12/You-S-2020-12-INFUSE-Workshop-Simulations-of-helical-shear-flow-stabilized-jet.pdf According to Zoominfo they have about 4 million in funding and 22 employees. Now from what I know about that site is that their numb...
by Skipjack
Thu Apr 08, 2021 9:01 am
Forum: News
Topic: In a comprehensive new test, the EmDrive fails to generate any thrust
Replies: 3
Views: 130

Re: In a comprehensive new test, the EmDrive fails to generate any thrust

Yeah, except for Shawyer himself, pretty much everyone else has given up on this now, I think.
Would have been great, but yes, the writing was on the wall.
by Skipjack
Thu Apr 08, 2021 8:58 am
Forum: News
Topic: Helicity Space
Replies: 6
Views: 240

Re: Helicity Space

Nice one! One of the properties of Helion's reactor design is that FRCs can be translated over great distances without losing stability. They make use of that to physically separate the compression chamber from the injectors and other more sensitive equipment. Helion is accelerating their plasmoids ...
by Skipjack
Thu Apr 08, 2021 1:55 am
Forum: News
Topic: Magnetic mirrors are back?
Replies: 0
Views: 97

Magnetic mirrors are back?

Ray Sedwick of the U of Maryland gave an interesting presentation on their magnetic mirror concept at the LSI Interstellar Initiative Grants Kickoff Meeting in October. Looks like (again?) a sheared flow and a rotating magnetic field are making a fusion concept more viable. They don't seem to see an...
by Skipjack
Thu Apr 08, 2021 1:54 am
Forum: News
Topic: Helicity Space
Replies: 6
Views: 240

Helicity Space

Helicity Space is a private fusion venture and member of the FIA that I have until now known very little about. Their concept does actually appear to be very interesting. It is a magneto inertial fusion concept, not unlike what Helion is doing, but with a different plasma configuration and a few oth...
by Skipjack
Wed Apr 07, 2021 8:18 pm
Forum: News
Topic: More Helion Energy news....
Replies: 243
Views: 199744

Re: More Helion Energy news....

Talking about patent, Helion tweeted today that their patent has been granted for Europe:
https://worldwide.espacenet.com/patent/ ... P3103119A2
by Skipjack
Tue Apr 06, 2021 8:43 pm
Forum: News
Topic: 2021 state of the horse race: ITER vs. dark horses
Replies: 34
Views: 2678

Re: 2021 state of the horse race: ITER vs. dark horses

I suspect that all fusion plants will look similar once the auxiliary systems are added in. Everything has trade offs. ITER looks dead commercially. I think that depends on the reactor design and fuel etc. Some (ZAP, Helion, LPPF, am I missing somone?) could be quite a bit smaller than others and s...
by Skipjack
Tue Apr 06, 2021 7:55 pm
Forum: News
Topic: 2021 state of the horse race: ITER vs. dark horses
Replies: 34
Views: 2678

Re: 2021 state of the horse race: ITER vs. dark horses

How can 1,200 MWth be "low value heat"? The thermal load will be roughly 50% of that, so around 600MWth distributed more or less over all the machine. Also according the PDF they are expecting a peak heat flux of 1 to 2 MWth/m2 (or 100 to 200 W/cm2). Making a high pressure steam recovery system ove...
by Skipjack
Tue Apr 06, 2021 8:24 am
Forum: News
Topic: 2021 state of the horse race: ITER vs. dark horses
Replies: 34
Views: 2678

Re: 2021 state of the horse race: ITER vs. dark horses

A 30% net electric output is coherent with the expected efficiencies of a direct conversion system we was discussing in the "Z-Pinch Renaissance" thread few months ago. A good chunk of the electric power will need to be used for the following cycle, and most of the heat will be low value heat that ...
by Skipjack
Tue Apr 06, 2021 4:01 am
Forum: News
Topic: 2021 state of the horse race: ITER vs. dark horses
Replies: 34
Views: 2678

Re: 2021 state of the horse race: ITER vs. dark horses

So the latest news for TAE is that Da Vinci, their first machine to demonstrate PB11 fusion is now set to begin operation in 2028 (see TAE thread for source). Copernicus is supposed to demonstrate "viability of net energy" by 2024/25 Prospective length for the commercial reactor vessel: 80 meters Po...
by Skipjack
Tue Apr 06, 2021 3:49 am
Forum: News
Topic: MIT claim they will build the SPARC
Replies: 21
Views: 27719

Re: MIT claim they will build the SPARC

Interesting presentation from "Developing a Regulatory Framework for Fusion Energy Systems".
CFS starts at page 76:
https://www.nrc.gov/docs/ML2109/ML21090A288.pdf
Some interesting tidbits on Tritium inventory and accident mitigation plans.
by Skipjack
Tue Apr 06, 2021 3:42 am
Forum: News
Topic: Small Tri Alpha news blurp
Replies: 210
Views: 187740

Re: Small Tri Alpha news blurp

Interesting presentation from "Developing a Regulatory Framework for Fusion Energy Systems".
TAE starts at page 59:
https://www.nrc.gov/docs/ML2109/ML21090A288.pdf
Da Vinci now set to begin operation in 2028. Length of commercial reactor: 80 meters.
by Skipjack
Fri Apr 02, 2021 4:14 pm
Forum: News
Topic: Tokamak Energy news
Replies: 125
Views: 144541

Re: Tokamak Energy news

Looks like their upgraded ST-40 is finally ready. Had first plasma the other day. I guess we will know the results in a few months. https://www.tokamakenergy.co.uk/tokamak-energy-on-track-to-be-the-first-private-company-to-achieve-100-million-degree-plasma-temperature-paving-the-way-to-commercial-fu...
by Skipjack
Wed Mar 31, 2021 6:24 pm
Forum: News
Topic: More Helion Energy news....
Replies: 243
Views: 199744

Re: More Helion Energy news....

All the drawings, charts and the table. At least I can't see them. They are in the version I posted.