General Fusion in the news

Point out news stories, on the net or in mainstream media, related to polywell fusion.

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crowberry
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Re: General Fusion in the news

Postby crowberry » Sat Jan 13, 2018 5:18 pm

Progress and Plans at General Fusion talk by Michael Delage at the Fusion Power Associates annual meeting 2017: http://firefusionpower.org/Delage%20FPA%202017.pdf.

crowberry
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Re: General Fusion in the news

Postby crowberry » Mon Jul 09, 2018 8:33 pm

The talk General Fusion Program by David Plant at the First IAEA Workshop on Fusion Enterprises has been added to the web page at
https://nucleus.iaea.org/sites/fusionportal/Shared%20Documents/Enterprises/2018/Presentations/13.06/Plant.pdf. It is is good summary of where they are now.

crowberry
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Re: General Fusion in the news

Postby crowberry » Mon Sep 17, 2018 4:13 pm

General Fusion has published a new paper. It is paywalled unless you have access through a university or research institute.

Magnetized Target Fusion with a Spherical Tokamak

Abstract

With good confinement and relatively high beta (up to 40%), the spherical tokamak could be a suitable magnetized target. To illustrate this potential, the theoretical fusion yield from compressing a spherical tokamak adiabatically to fusion conditions is calculated. While it is found that the large amount of energy stored in the compressed toroidal field constrains the potential energy gain, a system can be designed to produce significant useful output by directly recovering a large fraction of the compression energy. With 80% energy recovery, an example system using 140 MJ of pressurized gas to compress the spherical tokamak plasma within a 2 m radius liquid metal flux conserver can produce a fusion yield of 140 MJ and a net output of 40 MJ per pulse. At ~ 1 Hz this would produce 40 MWelectric.



https://link.springer.com/content/pdf/10.1007/s10894-018-0180-3.pdf

crowberry
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Re: General Fusion in the news

Postby crowberry » Wed Sep 26, 2018 11:18 am

General Fusion has published two recent talks on their home page. Results for the explosive compression test PCS 16 is published in Laberges talk. There is again a steady progress compared to the best previous result PCS 14. The demonstration plant under planning will be run on deuterium when they try to demonstrate fusion conditions, which will simply things very much and be cheaper. The curves of the number of private fusion ventures and the accumulated investments are also interesting.

Dr. Michel Laberge, 12 Sep Pacific Energy Innovation Association Presentation:
http://generalfusion.com/wp-content/uploads/2018/09/20180912-PEIA-Vancouver-Michel-Laberge.pdf

Matt Miles, 20 Sep PowerGen Asia Presentation:
http://generalfusion.com/wp-content/uploads/2018/09/20180920-PowerGen-Asia-Fusion-Matt-Miles.pdf

Carl White
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Re: General Fusion in the news

Postby Carl White » Tue Oct 09, 2018 2:20 pm

Does anyone know what their funding situation is now? I cast about on the web and it seems their most recent influx of money was from a $25M grant in May of 2016. They say they'll need several hundreds of millions to build their 70% prototype.

mvanwink5
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Re: General Fusion in the news

Postby mvanwink5 » Mon Oct 15, 2018 6:56 pm

General Fusion's claim:
"The only company building demonstration plant to confirm capability to produce electricity from fusion"

"building" a demonstration plant. That is rather unambiguous. I know of no timeline details for the project, funding, location, but it looks like they are going for it based on their last presentation.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

crowberry
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Re: General Fusion in the news

Postby crowberry » Tue Oct 16, 2018 1:48 pm

According to your post mvanwink5, a bit more than a year ago, General Fusion announced then that they have started the planning work for the demonstration plant and that they will make the site decision in 2018. So maybe we will hear something about this before the end the year?

http://www.talk-polywell.org/bb/viewtopic.php?f=10&t=4529&start=390#p129866

mvanwink5
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Re: General Fusion in the news

Postby mvanwink5 » Tue Oct 16, 2018 3:29 pm

Without a site, building is tough...unless we are loose with the term 'building,' in which case I am building a moon base, just not on the moon and I have only put one 1"x1" piece of wood in place. I would hope that GF is not engaging in loose terms.

At a minimum, building should mean a site, plans for the site, purchasing of materials based on the plans, with some things undetermined that might be added later such as equipment to extract & process tritium.

I saw a picture of a compression chamber with a couple of hundred small gas powered pistons, miniatures of their full scale pistons. Presumably they have been testing to prove their fluid dynamics simulations. I think they have gone to liquid lithium as opposed to liquid lead for their compression media. Must have a lead blanket outside the compression sphere? Dunno.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

mvanwink5
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Re: General Fusion in the news

Postby mvanwink5 » Tue Oct 16, 2018 3:35 pm

Maybe the one line claim in their presentation is not meant to be an announcement of their demonstration plant, nevertheless, it serves as an announcement as it is unqualified and a huge claim.

So, yes, maybe in their upcoming presentation they will give some details.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

crowberry
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Re: General Fusion in the news

Postby crowberry » Wed Oct 17, 2018 8:21 am

General Fusion hast posted the following on Twitter and Instagram:
harrydoughty1040Can you tell us a bit more about it? The porcupine quills on this design look a lot different than other photos that I have seen.

generalfusion@harrydoughty1040 this is a lab-scale testing device, so it uses jets of compressed gas for compression rather than the pistons you may have seen on our larger compression prototypes. The "quills" are the accumulators for the gas. We will still be using pistons on the full scale machine, but they are not necessary for the work being done on a smaller scale device such as this.


jule.roy@generalfusion Do you have a rough date in mind about when the demonstration power plant would be operational and ready for demo? :)

generalfusion@jule.roy once we determine a site for the demonstration plant we're targeting a 5 year plan for construction and commissioning

Image

https://www.instagram.com/p/BofIVRUBROr/?taken-by=generalfusion

General Fusion will present at the next Annual Meeting of the Fusion Power Associates, so when the slides are published we should have an update on the new hardware and the other things they are doing.
https://aries.pppl.gov/FPA/fpn18-20.shtml

crowberry
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Re: General Fusion in the news

Postby crowberry » Sat Oct 27, 2018 7:03 am


mvanwink5
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Re: General Fusion in the news

Postby mvanwink5 » Sat Oct 27, 2018 11:42 am

General Fusion will invest at least $150 million in research and development with the potential for over $250 million in additional investment for the construction of a demonstration plant.


I can't understand why we go to such great lengths to make short comments, to fit a small box, yet to find information a wall of words has to be sifted to read one sentence that might say something...if only a couple of key words weren't left out.

For instance, is that $150M 80% spent already developing their concept? Is $250M an old number or a new one? One earlier slide presentation says they are building the demo, this sentence implies they aren't.

And it is always imponderable why '$49,317,823.17' and not a simple $50M? Further, are these Canadian dollars? One might think that.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

mvanwink5
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Joined: Wed Jul 01, 2009 5:07 am
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Re: General Fusion in the news

Postby mvanwink5 » Sat Oct 27, 2018 12:10 pm

NBF has a followup interview, no interview quotes, just 'notes'.
https://www.nextbigfuture.com/2018/10/c ... gfuture%29
General Fusion Developing Power Generating Prototype

Nextbigfuture interviewed Christofer Mowry, the CEO of General Fusion. The highlights are that General Fusion is rapidly pushing ahead to achieve commercialization and the next step is to make a 70% scale pilot plant that will prove out the viability of generating electricity from General Fusion’s magnetized target nuclear fusion.

General Fusion does not need to demonstrate fusion containment because they are pulsed power systems like a diesel engine or steampunk fusion.

The pilot system will prove three things:
1. Fusion conditions will be repeatably produced
2. There will be a kill chain from neutrons to electrons
3. Economics will be validated.

Simulations will be used to validate the economics and design specifics to move to a 100% system.

The next system after the 70% scale system will be a full commercial system.

The Demo system will cost several hundred million dollars. General fusion is fundraising now. Several existing funders (Jeff Bezos, Canadian and Malaysian government) are likely participants in the next round. However, the fundraising cannot have actual disclosure until it is completed. As of late 2016, General Fusion had received over $100 million in funding from a global syndicate of investors and the Canadian Government’s Sustainable Development Technology Canada (SDTC) fund. They now have another C$49 million from the government of Canada.

All of the individual components have been matured enough to enable integration into a prototype pilot plant.

Over the five years of the demo plant, there will be design, construction and a nominal 18 months of testing.

The plasma injector component built so far is a 2-meter plasma injector. It will be a 3-meter injector for the pilot plant.

Titanium fabrication is with GE Additive as a partner.

The current component for has 14 pistons and was not to achieve plasma compression but to work out other engineering issues.

The demo system will have several hundred pistons. Perhaps around 500.

The next system could have more or fewer pistons depending upon how experiments inform the design and how smoothly the plasma will need to be compressed.

It will be deuterium fusion.
The demo plant will not add tritium. Addition of tritium is a well-understood process and would have a predictable impact.
Tritium will be added in the follow-up commercial system.


My guess is that GF is waiting to see how much $ they can raise before designing the demo. It also looks like they are still uncertain on the compression design. I would guess that start date for the project s dependent on when funds are raised... it is a lot of cash.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

crowberry
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Re: General Fusion in the news

Postby crowberry » Wed Dec 12, 2018 5:36 pm


mvanwink5
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Re: General Fusion in the news

Postby mvanwink5 » Wed Dec 12, 2018 8:14 pm

Thank you Crowberry,
Nice details on the compression plans. Now they need the money to 'go ahead with a 10% Lawson criteria' build. I suppose that once they get that we will hear it, then maybe a project timeline. Looks promising to me.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.


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