Probleeme seal jagub. Antud reaktoriga genereeriti 2.05 MJ -> 3.14MJ soojusenergiat. Laserite enda sisendenergia oli suurusjärgus 384 - 400 MJ nii et "kordades" üksi ei aita kuigi palju.Madis Reivik kirjutas: ↑14 Dets, 2022 13:53 Ei maksa järeldusi teha, äkki leitakse mingid resonantsid ja neeldumislainepikkused ja saadakse "impulsineeldumist" kordades kõrgemaks.
Teadus selle taga on veel lapsekingades ja uurimist palju.
Another factor working against IFE is the cost of the fuel. Even as Nuckolls was developing his earliest calculations, co-workers pointed out that if an IFE machine produces 50 MJ of fusion energy, one might expect that a shot could produce perhaps 10 MJ of power for export. Converted to better known units, this is the equivalent of 2.8 kWh of electrical power. Wholesale rates for electrical power on the grid were about 0.3 cents/kWh at the time, which meant the monetary value of the shot was perhaps one cent. In the intervening 50 years the price of power has remained about even with the rate of inflation, and the rate in 2012 in Ontario, Canada was about 2.8 cents/kWh.[72]
Thus, in order for an IFE plant to be economically viable, fuel shots would have to cost considerably less than ten cents in year 2012 dollars.
Direct-drive systems avoid the use of a hohlraum and thereby may be less expensive in fuel terms. However, these systems still require an ablator, and the accuracy and geometrical considerations are critical. The direct-drive approach still may not be less expensive to operate.
Kui sisse pandi 400MJ=111,1111111kWhGideonic kirjutas: ↑14 Dets, 2022 14:10 ... Antud reaktoriga genereeriti 2.05 MJ -> 3.14MJ soojusenergiat. Laserite enda sisendenergia oli suurusjärgus 384 - 400 MJ nii et "kordades" üksi ei aita kuigi palju. ...
Katset korrati, kasum mõnevõrra suurem? https://www.err.ee/1609054709/usa-teadl ... sperimentiGideonic kirjutas: ↑14 Dets, 2022 14:10Probleeme seal jagub. Antud reaktoriga genereeriti 2.05 MJ -> 3.14MJ soojusenergiat. Laserite enda sisendenergia oli suurusjärgus 384 - 400 MJ nii et "kordades" üksi ei aita kuigi palju.Madis Reivik kirjutas: ↑14 Dets, 2022 13:53 Ei maksa järeldusi teha, äkki leitakse mingid resonantsid ja neeldumislainepikkused ja saadakse "impulsineeldumist" kordades kõrgemaks.
Teadus selle taga on veel lapsekingades ja uurimist palju.
Kindlasti väga vajalikud katsed, isegi kui antud viisil pigem tavareaktorit ei ole võimalik arendada.Kriku kirjutas: ↑07 Aug, 2023 13:22 Katset korrati, kasum mõnevõrra suurem? https://www.err.ee/1609054709/usa-teadl ... sperimenti
Kaks korda on tootmist kiirendatud, aga 4x oleks veel vaja, kui lubatud tähtajast tahavad kinni pidada.Technicians painstakingly wound the tape into 16 coils, which were then assembled into a “pancake stack” to create a toroidal field magnet that could surround a section of tokamak. In September 2021, at MIT’s Plasma Science and Fusion Center, the team energized the magnet and watched as the field it produced strengthened to an intense 20 tesla—about 400,000 times as strong as the typical value for Earth’s magnetic field, and more than strong enough to lift an aircraft carrier out of the water. The team kept the magnet energized in a steady state for about 5 hours.
“We showed that we could basically hand-build 16 winding coils and assemble them into one high-performing magnet,” says Sorbom. “But can we do that over and over again, and do it very quickly?”
To magnetize Sparc, the CFS team will need to duplicate that feat 18 times. Near the Sparc site, a magnet-assembly facility is ramping up production. “We’ve cut the assembly time in half, but we’ll need to cut that time again by a factor of four to crank them out on schedule,” Sorbom says. Each of the winding packs will be built and tested, then integrated into toroidal field coils and moved to a final-assembly hall, where the 18 identical coils and surrounding structures will be consolidated and then installed around the tokamak.
But, unlike the fusion reactions themselves—where the physics theory is well-established, if only partially executed—many fundamental questions remain unanswered when it comes to producing electricity from nuclear fusion. The engineering challenge of building complex systems that can harvest the energy and convert it to electricity without being destroyed by radiation poses a series of tall engineering and materials-science hurdles.
Among them is a means to extract heat from the device for generating electrical power. At this point, CFS’s preferred approach is to use a blanket of molten salt, which could also breed tritium (also known as hydrogen-3), a rare isotope used to fuel magnetic confinement reactors.
The working design calls for a continuously flowing loop of salt to be pumped into a tank surrounding the plasma chamber, where it absorbs radiated neutrons. The molten salt is then pumped outside the tokamak, where its heat energy is transferred into a fluid that drives a turbine to generate electricity. Because nearly all of the power that Arc produces will be absorbed in the molten-salt blanket, the load on the magnet-cooling system is minimized.
The molten salt will likely be a mixture of lithium fluoride and beryllium fluoride, known as FLiBe. This combo allows the salt to do double duty as a breeding medium in which some of the fusion neutrons interact with lithium atoms and change them into tritium. The tritium is then filtered out of the blanket and recycled into fusion fuel.
FLiBe is the focus of an ongoing research partnership with MIT’s Plasma Science and Fusion Center, funded by ARPA-E. It’s one of several DOE programs that are pushing fusion research forward with grants and pairings between private industry and DOE’s national laboratories. But whether FLiBe will work better than other approaches—if at all—is still an educated guess.
https://tehnika.postimees.ee/8161239/va ... hiaastatelPärast põhjalikku asukohavalikut on Commonwealth Fusion Systems (CFS) teatanud plaanist ehitada maailma esimene võrgumastaabis tuumasünteesijaam, mis hakkab tootma 400 megavatti pidevat puhast energiat. Jaam, nimega ARC (Affordable, Robust, Compact), rajatakse Virginia osariigis Chesterfieldi maakonnas asuvale 100 aakri (40 hektari) suurusele maatükile ja plaanide kohaselt alustab see tööd 2030. aastate alguses.