World: r3wp
[Tech News] Interesting technology
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AdrianS 26-Apr-2011 [6053] | With all the recent problems in Japan and the rapidly increasing cost of oil, something that is this close to being usable in production is being totally ignored. |
Henrik 26-Apr-2011 [6054] | interesting... I have never heard of this process. |
AdrianS 26-Apr-2011 [6055x2] | Neither has 99.9% of the rest of the world - totally crazy |
actually there should be a bunch more 9's after the decimal point | |
Henrik 26-Apr-2011 [6057] | have you heard about Polywell? |
AdrianS 26-Apr-2011 [6058x2] | no, is this something pretty recent? |
oh - looks like this is conventional fusion | |
Henrik 26-Apr-2011 [6060x2] | actually, it's close to 20 years old, but it was not revealed until around 2005. it has gone silent again a year ago. |
what I wonder, if that any one of these projects will work, what happens to ITER. if they will keep funding ITER, that is perhaps the most crazy part. | |
AdrianS 26-Apr-2011 [6062] | I'm not too optimistic about hot fusion, based on what I've read. |
Henrik 26-Apr-2011 [6063] | polywell is kinetic fusion, not hot fusion, so it's a different process. |
AdrianS 26-Apr-2011 [6064] | why did it go silent if results were promising? |
Henrik 26-Apr-2011 [6065] | because the US Navy is funding it. |
AdrianS 26-Apr-2011 [6066x3] | well, the Navy has also had positive results with LENR - they're into whatever will give them cheap power |
the nice thing about the Rossi process is that it is dirt cheap - can be done in your kitchen, basically | |
the technology needed is not much above what you'd see in a chemistry lab | |
Henrik 26-Apr-2011 [6069x3] | They funded the early research too from 1992 to 2005, but funding ran out in 2005 and a lack of results could not get the research funding renewed. It's a near miracle that the research started again. this happened, because the main researcher, Robert Bussard was going through test data from their last burnt out prototype and discovered interesting numbers that suggested that the principle actually works. Still no funding, and Bussard went public to get funding, even setting up a paypal account. Bussard then died in 2007 and other researchers took over the funding issue. They got the US Navy to start funding it again, built another prototype to verify the results and they turned out good. After this a plan was posted for more prototypes and then they went silent. |
What I find amusing is that Robert Bussard worked on ITER early on, saw that it wouldn't work and left and basically worked in a garage for 10 years with speaker magnets for pocket money, while ITER received billions for barely any progress. | |
Polywell is gigawatt class fusion and is not likely to be something you put in your car, so LENR might supplement it well, if it can be done small-scale. | |
AdrianS 26-Apr-2011 [6072x2] | The planned 1MW plant using the Rossi process will have about 300 units that produce about 4 kW each. The units have about 50cc. With some shielding around them, that still doesn't amount to much space. |
to be clear, though - the output is steam - if you want to convert to electricity, you're talking about 30% of that | |
Henrik 26-Apr-2011 [6074] | Polywell is advantagous over ITER in that the design is much, much simpler. The output is electricity and helium, so no conversion is needed to put it on a grid. There are still arguments over whether neutron radiation will be produced, when used with the pb11 fuel, but if not, then none will be produced, as there will be with ITER. The disadvantage is the requirement for size, which probably is going to be more than 3x3x3 meters for a small-scale system, but it's still small enough to put in a submarine or a ship. The other disadvantage is that you probably will need 1-10 MW plant in front of it to start it, but once the process starts, it runs on its own. Another point is safety: If you add too much or too little fuel, the process simply stops. |
AdrianS 26-Apr-2011 [6075] | Sounds pretty interesting, but when will we see commercial deployment? Rossi is planning for October, this year, for his process. A Greek company is investing 200 million euros in the plant. |
Henrik 26-Apr-2011 [6076] | We won't know, as the state of development is still in understanding the physics and there is no public device that has worked for longer than a few milliseconds. After that, there are still engineering issues to overcome to build a production device. The researchers last said that the first real device could be in operation within 5-10 years, which still is 50 years before ITER. As far as I can tell, LENR is further ahead. But from what I can see, they are not in direct competition with eachother and there is a need for real table-top fusion. |
AdrianS 26-Apr-2011 [6077x3] | I'm not sure what the maximum output from the Rossi process can be, but from what I've been reading it can actually produce much higher output than what is planned for the initial plant. For now, it is being limited it in order to have it operate in a safe range. The demonstration done in January showed about 12-15kW. It seems it can be self sustaining, but that might come after the theory behind the process is understood. As it is, it is a controllable process that can generate a known amount of energy given a set of operating parameters. |
to clarify, the Jan demo showed that output from one unit of about 1 litre capacity | |
Now that I looked over the wikipedia article on Polywell, I remember coming across it a few years back - I watched the Google talk that Bussard gave - but it fell off my radar when not much seemed to happen around the process. | |
Maxim 26-Apr-2011 [6080x2] | I like working experiments which look like this: http://pesn.com/2011/02/22/9501770_Rossi_cold_fusion_reactor_achieves_15_kW_for_18_hours/ it means we'll be able to build time-travelling deLoreans ourselves :-) |
the thing I like about this experiment, is that they seem to be doing all they can to avoid calling it a "cold fusion" device... probably to limit the media circus act. | |
Henrik 26-Apr-2011 [6082] | I don't understand the need for patenting the device, but I may not have the whole story. |
AdrianS 26-Apr-2011 [6083x2] | Rossi is an engineer - he's spent a good amount of his life on this and lots of his own finances - up until now, it's been out of his pocket. Why doesn't it seem reasonable to want to profit from something like this? |
the best discussion on this subject is on the vortex list. If the subject is of interest, start around mid-January when the news broke and work forwards. You'll find lots of very qualified people discussing Rossi. My take from what I've read is that this isn't a scam - there's been lots of precedent over the last two decades. Rossi has finally gotten a repeatable, consistent process, that's all. http://www.mail-archive.com/[vortex-l-:-eskimo-:-com] | |
Robert 26-Apr-2011 [6085] | I'm wondering why he isn't telling how it's working. If he want to protect it, he has to file a patent, which makes the thing public anyway. |
AdrianS 26-Apr-2011 [6086x4] | Also, the many comments on Rossi's blog (look at the Jan conference post with 825 comments, in particular), The Journal of Nuclear Physics, are telling. There's lots there to read between the lines. |
he has filed for a patent, but there's been issues as the patent application is way too vague | |
the main IP he's trying to protect is in the composition of the catayst he uses along with the main ingredients of the reaction, regular hydrogen and nickel | |
the post for the Jan conference is here. Start at page 1 and work forward and you'll get a very good sense for how this whole thing is being perceived http://www.journal-of-nuclear-physics.com/?p=360#comments | |
Henrik 26-Apr-2011 [6090] | He says, he's already heating one building using this method. If it were to be that he was to cover his investments, I would probably rather try to have it installed in dozens of buildings, by selling the device to select people. If he's trying to make millions beyond his investments by completely preventing other people from building it, I would not find that particularly noble. |
Geomol 26-Apr-2011 [6091] | Licensing |
Maxim 26-Apr-2011 [6092x2] | Henrik, in most cases that I know of patents do not allow you to "prevent" other people from benefiting from your inventions, it forces them to license the invention from you |
and usually, the terms have to be "reasonable" | |
AdrianS 26-Apr-2011 [6094] | he has had a prototype unit (about 10kW if I recall) heating a building for about a year prior to the public announcement. The plant(s) (there will be one in Greece and one somewhere else, I think) coming this year, hopefully, will be the validation of the process everyone is demanding. If you read at the above links, you'll see that his intent isn't to stop the technology from being used by as many people as possible. |
Robert 26-Apr-2011 [6095] | Any information about the costs? |
AdrianS 26-Apr-2011 [6096] | yes, at the above links |
Maxim 26-Apr-2011 [6097] | by what I've seen, he wants this tech to be licenced as much as possible ... I've read that he admits he must "give back to the americans who allowed him to do his research" his own govt sent him to jail on previous "greener" energy attempts... which is downright imbecile. |
AdrianS 26-Apr-2011 [6098] | the initial cost of the energy is supposed to be around one US cent/kWh |
Robert 26-Apr-2011 [6099] | And no VCs jumped on the wagon yet? Can't believe it. |
Maxim 26-Apr-2011 [6100] | Robert, production is ~ 0.01/kwh so very cheap... and the minimal size is the actual device we see... 50x50x100 cm... this is very cool... it means we could actually see "home-sized" units in time. |
AdrianS 26-Apr-2011 [6101] | he's not looking for investment - other than for people looking to build plants |
Robert 26-Apr-2011 [6102] | I would know a dozend companies that would use it immediatly. |
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