Fusjon

Diskusjon om teknologi, teknologiske fremskritt, ny vitenskap, etc.

Fusjon

Innlegg QIQrrr 09 Nov 2010, 06:06

Lawrence Livermore National Laboratory (LLNL), November 8, 2010: The National Nuclear Security Administration's National Ignition Facility (NIF) has set world records for neutron yield and laser energy delivered from laser-driven capsules to an inertial confinement fusion (ICF) target. The neutron yield record was set on Sunday, Oct. 31, when the NIF team fired 121 kilojoules of ultraviolet laser light into a glass target filled with deuterium and tritium (DT) gas. The shot produced approximately 3 x 1014 (300 trillion) neutrons, the highest neutron yield to date by an inertial confinement fusion facility. Neutrons are produced when the nuclei of deuterium and tritium (isotopes of hydrogen) fuse, creating a helium nucleus and releasing a high-energy neutron. On Tuesday, Nov. 2, the team fired 1.3 megajoules of ultraviolet light into a cryogenically cooled cylinder called a hohlraum containing a surrogate fusion target known as a symmetry capsule, or symcap. This was the highest-energy laser shot and was the first test of hohlraum temperature and capsule symmetry under conditions designed to produce fusion ignition and energy gain. Preliminary analysis indicated that the hohlraum absorbed nearly 90 percent of the laser power and reached a peak radiation temperature of 300 electron volts (about six million degrees Fahrenheit) -- making this the highest X-ray drive energy ever achieved in an indirect drive ignition target - World's largest laser sets records for neutron yield and laser energy

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"Atlas was permitted the opinion that he was at liberty, if he wished, to drop the Earth and creep away; but this opinion was all that he was permitted" - Franz Kafka
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Re: Fusjon

Innlegg QIQrrr 12 Nov 2010, 12:48

Sandia National Laboratories, November 11, 2010: A new X-ray imaging capability has taken pictures of a critical instability at the heart of Sandia’s huge Z accelerator. The effort may help remove a major impediment in the world-wide, multidecade, multibillion dollar effort to harness nuclear fusion to generate electrical power from sea water. “These are the first controlled measurements of the growth of magneto-Rayleigh-Taylor [MRT] instabilities in fast Z-pinches,” said project lead Daniel Sinars. MRT instabilities are spoilers that arise wherever electromagnetic forces are used to contract (pinch) a plasma, which is essentially a cloud of ions. The pinch method is the basis of the operation of Z, a dark-horse contender in the fusion race. A pinch contracts plasma so suddenly and tightly that hydrogen isotopes available from sea water, placed in a capsule within the plasma, should fuse. That’s the intent. Instead, the instability rapidly crimps the cylindrically contracting plasma until it resembles a string of sausages, or shreds the plasma into more fantastic, equally useless shapes. This damaged contraction loses the perfect symmetry of forces necessary to fuse the material - Sandia effort images the sea monster of nuclear fusion: the Rayleigh-Taylor instability

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"Atlas was permitted the opinion that he was at liberty, if he wished, to drop the Earth and creep away; but this opinion was all that he was permitted" - Franz Kafka
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Re: Fusjon

Innlegg QIQrrr 12 Nov 2010, 18:44

Eric J. Lerner er mannen bak dette spennende prosjektet:

    Lawrenceville Plasma Physics, Inc., November 11, 2010: Experiments this month gave further confirmation of our basic theoretical model of the Dense Plasma Focus (DPF). ICCD images showed the pinched filament kinking into a plasmoid and gave us clearer estimates of the plasmoid radius and density. X-ray emission energy continues to increase, giving us more confidence for our spin-off X-ray generator applications. Our replacement trigger heads were completed and tested, making us ready to return to 12-capacitor firing. For the first time, we have captured images of the kinking process that leads from the pinched filament column to the formation of the plasmoid. This process, portrayed in the Focus Fusion Society animation of DPF functioning, is critical to our theoretical understanding of how the plasma in the pinch region gets further concentrated into the donut-like plasmoid. While others have observed plasma columns kinking in different and larger devices, this process has never before, to our knowledge, been directly observed in the DPF - Progress and a Good Report

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"Atlas was permitted the opinion that he was at liberty, if he wished, to drop the Earth and creep away; but this opinion was all that he was permitted" - Franz Kafka
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Re: Fusjon

Innlegg QIQrrr 10 Jan 2011, 23:09

University of Warwick, January 10, 2011: Researchers at the University of Warwick’s Centre for Fusion Space and Astrophysics and the UK Atomic Energy Authority’s Culham Centre for Fusion Energy may have found a way to channel the flux and fury of a nuclear fusion plasma into a means to help sustain the electric current needed to contain that very same fusion plasma - Wave Power Could Contain Fusion Plasma
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"Atlas was permitted the opinion that he was at liberty, if he wished, to drop the Earth and creep away; but this opinion was all that he was permitted" - Franz Kafka
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Re: Fusjon

Innlegg QIQrrr 12 Jan 2011, 10:53

Lerner beveger seg stadig nærmere målet:

    Eric J. Lerner, Focus Fusion Society, January 11, 2011: LPP’s Focus Fusion project has demonstrated that ions with more than 100 keV energy (equivalent to more than 1 billion degrees C) are confined in a dense plasma focus. This breakthrough is based on both new evidence from the past month and a re-analysis of shots made earlier in the year, and resolves a long-standing controversy within the field on whether the ions are confined in a small space, and thus can potentially heat the fusion fuel up to ignition, or are in a beam running freely through the cold background plasma of the chamber. A combination of evidence from many instruments, fit together like a jig-saw puzzle, has demonstrated that the ions are trapped in circulating beams in very dense plasma. The evidence ruled out the unconfined beam model. The 100-keV energy is sufficient to burn pB11 fuel, once we start running with that fuel in the coming year, and makes us confident that we will be able to achieve at least significant pB11 fusion yield. A press release on these results will be forthcoming shortly. The results will be submitted to the leading physics journal, Physical Review Letters - LPP December 2010 Report - Summary

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"Atlas was permitted the opinion that he was at liberty, if he wished, to drop the Earth and creep away; but this opinion was all that he was permitted" - Franz Kafka
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Re: Fusjon

Innlegg BHS 03 Feb 2011, 08:56

Interessant om kald fusjon:

http://peswiki.com/index.php/Directory: ... _Generator

Eng. Andrea A. Rossi and Professor Sergio Focardi of the University of Bologna, have announced to the world that they have a cold fusion device capable of producing more than 10 kilowatts of heat power, while only consuming a fraction of that. On January 14, 2011, they gave the Worlds' first public demonstration of a nickel-hydrogen fusion reactor capable of producing a few kilowatts of thermal energy. At its peak, it is capable of generating 15,000 watts with just 400 watts input required.

They don't use the term "cold fusion" do describe the process, be refer to it as an amplifier or catalyzer process.

Focardi states:

"Experimentally, we obtained copper; and we believe that its appearance is due to the fusion of atomic nuclei of nickel and hydrogen, the ingredients that feed our reactor. Since hydrogen and nickel 'weigh' with less, copper must have released a lot of energy, since 'nothing is created or destroyed.' Indeed, the 'Missing Mass' has been transformed into energy, which we have measured: it is in the order of a few kilowatts, two hundred times the energy that was the beginning of the reaction." [1]
They also claim to be going into production, with the first units expected to ship by the secong quarter 2011, with mass production commencing by the end of 2011.

This would become the world's first commercially-ready "cold fusion" device. Licensees are mentioned, with contracts in the USA and in Europe. Mass production should escalate in 2-3 years. Presently Rossi says they are manufacturing a 1 megawatt plant composed of 125 modules. These modules should begin shipping in about three months. On January 31st, 2011, Rossi wrote: "The cost to produce the catalyzer is 1 cent per MWh generated; the life expectancy is 20 years; the cost impact is between 1 and 1.5 cents per MWh." [2]

In describing the operation of the device, he said: "To start up the reactor you have just to turn on a switch. The reactor works with enormous margins of safety, so there is no need of a particular skill. Just follow the instructions. The refuelling is every 6 months and will be made by our dealers."

According to Rossi, the demonstrated device shown on January 14, 2011 is their industrial product that is claimed to be reliable and safe. In normal operation it would produce 8 units of output for every unit of input. Higher levels of output are possible, but can be dangerous. They will soon start serial production of their modules. Combining the modules in series and parallel arrays it is possible to reach every limit of power. The modules are designed to be connected in series and parallels.

Rossi also says that they have had one reactor that has run continually for two years, providing heat for a factory. It reduced the electric bill by 90%. Also, the reactors can self sustain by turning off the input, but they prefer to have an input. The device will be scheduled for maintenance every six months. You control it "just as you turn on and off your television set."

Convinced they have already adequately proven this to the necessary parties, they are not in a hurry to give demonstrations to curious scientists. On Junuary 21, 2011, Rossi wrote: "Yes there will be a Scientist talking about us, no demo anyway: no more demos before the start up of the 1 MW plant."

se mer under linken:
http://peswiki.com/index.php/Directory: ... _Generator
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Re: Fusjon

Innlegg QIQrrr 07 Apr 2011, 19:48

BHS skrev:Interessant om kald fusjon...

Svenske fysikere har undersøkt saken:

Børge Svanstrøm Amundsen

"Atlas was permitted the opinion that he was at liberty, if he wished, to drop the Earth and creep away; but this opinion was all that he was permitted" - Franz Kafka
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Re: Fusjon

Innlegg André Risnes 12 Apr 2011, 20:28

Svindel. Rossi er tidligere dømt for en liknende sak. De som har sett noen "free energy scams" før ser at denne følger det vanlige mønsteret.
A still more glorious dawn awaits: not a sunrise, but a galaxy rise - a morning filled with four hundred billion suns.
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Re: Fusjon

Innlegg BHS 08 Mai 2011, 17:51

André Risnes skrev:Svindel. Rossi er tidligere dømt for en liknende sak. De som har sett noen "free energy scams" før ser at denne følger det vanlige mønsteret.

De svenske vitenskapsmennene (som har vært tilstede under eksperiment med E-cat) anser det for svært usannsynlig at det er en "scam" i dette intervjuet.
http://www.youtube.com/watch?v=Vt2JqEmaUGc
Disse svenskene skal også få eksemplarer av E-cat til Sverige for å kjøre "kald fusjons"-reaktoren selv.

Ansrea Rossi har forøvrig nå fått godkjent patent på denne "kald fusjons"-reaktoren (E-cat)
http://www.e-catworld.com/2011/05/08/it ... the-e-cat/

Flere Youtube klipp om saken:
http://www.youtube.com/watch?v=POZrKGpipmo
http://www.youtube.com/watch?v=NzL3RIlc ... r_embedded
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Re: Fusjon

Innlegg QIQrrr 12 Mai 2011, 03:09

Bilde

Cosmic Log, May 10, 2011: A Navy-funded effort to harness nuclear fusion power reports that its unconventional plasma device is operating as designed and generating "positive results" more than halfway through the project. [...] EMC2 Fusion doesn't have tens of millions of venture capital to play with — but it does have a $7.9 million Navy contract to test a plasma technology known as inertial electrostatic confinement fusion, also known as Polywell fusion. The idea is to accelerate positively charged ions in an electrical cage to such an extent that they occasionally spark a fusion reaction, releasing energy and neutrons. The concept was pioneered by the late physicist Robert Bussard, and carried forward by the EMC2 Fusion team in Santa Fe, N.M. - Fusion goes forward from the fringe
Børge Svanstrøm Amundsen

"Atlas was permitted the opinion that he was at liberty, if he wished, to drop the Earth and creep away; but this opinion was all that he was permitted" - Franz Kafka
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Re: Fusjon

Innlegg BHS 30 Okt 2011, 20:47

Ny oppdatering om Andrea Rossis Cold Fusion (eller LENR som det også blir kalt). Vellykket forsøk med 1MW kreftverk ble gjennomført 28. oktober:

On October 28, 2011, Andrea Rossi demonstrated his 1 megawatt E-Cat system to his first customer, who had engineers/scientists on hand to test/validate its performance. Due to a glitch, it provided 479 kW of continuous power for 5.5 hours during the self-sustained mode.

http://pesn.com/2011/10/28/9501940_1_MW ... uccessful/

http://peswiki.com/index.php/News:Octob ... 28.2C_2011

http://www.e-catworld.com/2011/10/e-day ... -customer/

http://www.e-catworld.com/2011/10/what- ... t-achieve/

http://www.e-catworld.com/2011/10/a-cas ... ing-rossi/
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Re: Fusjon

Innlegg André Risnes 31 Okt 2011, 11:51

Rossi hevder ikke at dette er kald fusjon, men en ny type energikilde som involverer "weak interactions between nuclei, without actual fusion happening". Denne mekanismen er ukjent for vitenskapen, systemet er ikke testet som en "black box" av uavhengige, og ingen uavhengige har fått tilgang til systemet. De testene som har vært delvis tilgjengelige for offentligheten har vært tvilsomme:

The problem with this 'test' is that it still (from what I can tell) utilizes the same flawed methodology as previous ones. They don't measure the actual quantity, quality, temperature and pressure of the steam output. In other words, they don't measure the amount of energy coming out of the device. Rather they're measuring the (supposed) amount of water coming out and subtracting that from the water going in, assuming the rest is saturated steam. Also, the machine leaks(!). (And frankly, the quality of some of the 'reports' on this thing are lower than I'd expect from an undergrad student project).

It's a non-trivial thing to calculate the amount of energy in steam. As I said a week ago (and others have apparently pointed out), it would be much easier to just up the water flow rate to keep the thing at below-boiling temperature and just measure the outgoing water temperature, which would avoid the difficulties with steam and make a much simpler (and thus more convincing case). But Rossi hasn't done that. Why not?


Jeg leste rapporten fra Essén og Kullander. De går i samme fellen som vitenskapsmenn så ofte gjør når de skal undersøke svindlere og paranormale fenomener. De er vant med å undersøke naturfenomener, og er eksperter i å ikke la seg lure av naturen eller seg selv, men de har ingen trening i å avsløre mennesker som med vilje prøver å lure dem. De som er interessert i denne problemstillingen kan finne mye info i James Randi sitt arbeide med diverse svindlere.

Det tok meg 5 minutter å finne opp 2-3 måter å fake testen beskrevet i rapporten.
A still more glorious dawn awaits: not a sunrise, but a galaxy rise - a morning filled with four hundred billion suns.
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Re: Fusjon

Innlegg BHS 26 Jul 2012, 13:48

.
For en oppdatering på de siste måneders utvikling innen "cold fusion" (nå kalt LENR), se slideshowet i følgende link:

http://www.e-catworld.com/2012/07/lenr- ... uwelingen/
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Re: Fusjon

Innlegg QIQrrr 17 Sep 2012, 20:44

Sandia National Laboratories, September 17, 2012: Magnetically imploded tubes called liners, intended to help produce controlled nuclear fusion at scientific “break-even” energies or better within the next few years, have functioned successfully in preliminary tests, according to a Sandia research paper accepted for publication by Physical Review Letters (PRL). To exceed scientific break-even is the most hotly sought-after goal of fusion research, in which the energy released by a fusion reaction is greater than the energy put into it — an achievement that would have extraordinary energy and defense implications - Dry-run experiments verify key aspect of Sandia nuclear fusion concept

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