Forum

 
  Back to OzPolitic.com   Welcome, Guest. Please Login or Register
  Forum Home Album HelpSearch Recent Rules LoginRegister  
 

Pages: 1 
Send Topic Print
Nuclear Fusion (Read 4873 times)
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Nuclear Fusion
Aug 30th, 2019 at 11:01am
 
Sort of makes messing around with thorium look like a waste of time.



World’s Largest Nuclear Fusion Experiment Clears Milestone. The International Thermonuclear Experimental Reactor is set to launch operations in 2025
By Nathanial Gronewold, E&E News on July 24, 2019

...
The International Thermonuclear Experimental Reactor is under construction in southern France. Credit: Oak Ridge National Laboratory Flickr (CC BY 2.0)

A multination project to build a fusion reactor cleared a milestone yesterday and is now 6 ½ years away from “First Plasma,” officials announced.

Yesterday, dignitaries attended a components handover ceremony at the construction site of the International Thermonuclear Experimental Reactor in southern France. The ITER project is an experiment aimed at reaching the next stage in the evolution of nuclear energy as a means of generating emissions-free electricity.

The section recently installed—the cryostat base and lower cylinder—paves the way for the installation of the tokamak, the technology design chosen to house the powerful magnetic field that will encase the ultra-hot plasma fusion core.

“Manufactured by India, the ITER cryostat is 16,000 cubic meters,” ITER officials said in a release. “Its diameter and height are both almost 30 meters and it weighs 3,850 tons. Because of its bulk, it is being fabricated in four main sections: the base, lower cylinder, upper cylinder, and top lid.”

The entire project is now 65% complete, the officials said.

The world’s first commercial-scale fusion reactor project is on track to officially launch operations at the end of 2025, said spokeswoman Sabina Griffith, but it will take at least a decade to fully power up the facility.

“The date for First Plasma is set; we will push the button in December 2025,” Griffith said. “It will take another 10 years until we reach full deuterium-tritium operations.”

Thirty-five nations are cooperating on the project to bring fusion power to the masses.



Achieving controlled fusion reactions that net more power than they take to generate, and at commercial scale, is seen as a potential answer to climate change. Fusion energy would eliminate the need for fossil fuels and solve the intermittency and reliability concerns inherent with renewable energy sources. The energy would be generated without the dangerous amounts of radiation that raises concerns about fission nuclear energy.

Officials say the ITER nuclear fusion reactor is poised to be the most complicated piece of machinery ever built. It will contain the world’s largest superconducting magnets, needed to generate a magnetic field powerful enough to contain a plasma that will reach temperatures of 150 million degrees Celsius, about 10 times hotter than the center of the sun.

Griffith said more milestones will be cleared as soon as construction continues.

“We will see the arrival of the first major Tokamak components like the first PF Coil from China (a European contribution), a Vacuum Vessel sector from Korea and first TF coils (from Europe and Japan) this autumn,” Griffith said in an email. “This will lead us to the official start of assembly in spring next year.”

Reprinted from Climatewire with permission from E&E News. E&E provides daily coverage of essential energy and environmental news at www.eenews.net.

https://www.scientificamerican.com/article/worlds-largest-nuclear-fusion-experim...
Back to top
 
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #1 - Aug 30th, 2019 at 11:04am
 
I hope it works.
meanwhile - we have plenty of Thorium that we know works.
Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #2 - Aug 30th, 2019 at 11:48am
 
But Bobby there is no money in it as the uranium horse has already bolted.

Maybe in 200 years when uranium gets scarce and if nuclear fusion still doesn't work and if India hasn't blown itself up.
Back to top
 
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #3 - Aug 30th, 2019 at 1:26pm
 
juliar wrote on Aug 30th, 2019 at 11:48am:
But Bobby there is no money in it as the uranium horse has already bolted.

Maybe in 200 years when uranium gets scarce and if nuclear fusion still doesn't work and if India hasn't blown itself up.



Juliar - you need to have faith that engineers and
scientists can solve the problems of Thorium reactors.

Fusion is another matter altogether.
You're talking of a sub-miniature star on earth.
The technical problems are orders of magnitude greater.
Back to top
 
 
IP Logged
 
Sir lastnail
Gold Member
*****
Offline


Australian Politics

Posts: 29705
Gender: male
Re: Nuclear Fusion
Reply #4 - Aug 30th, 2019 at 3:18pm
 
juliar wrote on Aug 30th, 2019 at 11:48am:
But Bobby there is no money in it as the uranium horse has already bolted.

Maybe in 200 years when uranium gets scarce and if nuclear fusion still doesn't work and if India hasn't blown itself up.


and that is what it is all about isn't socko. No money in it so it's no good. Why don't you hatch up some scam to rip us off on the air we breath since you are doing a good job poisoning it Sad
Back to top
 

In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.
 
IP Logged
 
Sir lastnail
Gold Member
*****
Offline


Australian Politics

Posts: 29705
Gender: male
Re: Nuclear Fusion
Reply #5 - Aug 30th, 2019 at 3:19pm
 
Bobby. wrote on Aug 30th, 2019 at 1:26pm:
juliar wrote on Aug 30th, 2019 at 11:48am:
But Bobby there is no money in it as the uranium horse has already bolted.

Maybe in 200 years when uranium gets scarce and if nuclear fusion still doesn't work and if India hasn't blown itself up.



Juliar - you need to have faith that engineers and
scientists can solve the problems of Thorium reactors.

Fusion is another matter altogether.
You're talking of a sub-miniature star on earth.
The technical problems are orders of magnitude greater.


the only man made fusion generator proven to work only works for a micro second and unleashes devastating forces and radiation Sad
Back to top
 

In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #6 - Aug 30th, 2019 at 3:25pm
 
Sir lastnail wrote on Aug 30th, 2019 at 3:19pm:
Bobby. wrote on Aug 30th, 2019 at 1:26pm:
juliar wrote on Aug 30th, 2019 at 11:48am:
But Bobby there is no money in it as the uranium horse has already bolted.

Maybe in 200 years when uranium gets scarce and if nuclear fusion still doesn't work and if India hasn't blown itself up.



Juliar - you need to have faith that engineers and
scientists can solve the problems of Thorium reactors.

Fusion is another matter altogether.
You're talking of a sub-miniature star on earth.
The technical problems are orders of magnitude greater.


the only man made fusion generator proven to work only works for a micro second and unleashes devastating forces and radiation Sad



Hi Nail,
I wish they would have put that fusion money into Thorium reactors.
At least they know that Thorium works.
Back to top
 
 
IP Logged
 
Captain Nemo
Gold Member
*****
Offline


Australian Politics

Posts: 8428
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #7 - Aug 30th, 2019 at 9:37pm
 
Using a magnetic field to hold the ultra-hot plasma fusion core which will be at 150 million degrees Celsius, about 10 times hotter than the center of the sun.


What could possibly go wrong?

Shocked
Back to top
 

The 2025 election could be a shocker.
WWW  
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #8 - Sep 2nd, 2019 at 1:41pm
 
The dreary Greeny scunge is emitting smelly ignorance pollution in great quantities.
Back to top
 
 
IP Logged
 
Jovial Monk
Gold Member
*****
Online


Dogs not cats!

Posts: 43612
Gender: male
Re: Nuclear Fusion
Reply #9 - Sep 23rd, 2019 at 8:12pm
 
Captain Nemo wrote on Aug 30th, 2019 at 9:37pm:
Using a magnetic field to hold the ultra-hot plasma fusion core which will be at 150 million degrees Celsius, about 10 times hotter than the center of the sun.


What could possibly go wrong?

Shocked


How much actual plasma will be in the magnetic bottle at any one time? e =mc2 remember.
Back to top
 

Get the vaxx! 💉💉

If you don’t like abortions ignore them like you do school shootings.
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #10 - Sep 24th, 2019 at 7:43am
 
Now the equally dull dreary boring uninformed Munkee is trotting out prepared Greeny replies. What a flop. A technical section is the last place a non technical body like Munkee should inhabit.
Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #11 - Sep 24th, 2019 at 8:25am
 
Now getting away from the irrelevant and back to the TOPIC.


Researchers Just Demonstrated Nuclear Fusion in a Device Small Enough to Keep at Home
MIKE MCRAE17 APR 2019

...

When it comes to the kinds of technology needed to contain a sun, there are currently just two horses in the race. Neither is what you'd call 'petite'. 

An earlier form of fusion technology that barely made it out of the starting blocks has just overcome a serious hurdle. It's got a long way to catch up, but given its potential cost and versatility, a table-sized fusion device like this is worth watching out for.

While many have long given up on an early form of plasma confinement called the Z-pinch as a feasible way to generate power, researchers at the University of Washington in the US have continued to look for a way to overcome its shortcomings.

Fusion power relies on clouds of charged particles you can squeeze the literal daylights out of - it's the reaction that powers that big ball of hot gas we call the Sun.

But containing a buzzing mix of superhot ions is extremely challenging - in the lab, scientists use intense magnetic fields for this task. Tokamaks like China's Experimental Advanced Superconducting Tokamak reactor swirl their insanely hot plasma in such a way that they generate their own internal magnetic fields, helping contain the flow.

This approach gets the plasma cooking enough for it to release a critical amount of energy. But what it gains in generating heat it loses in long-term stability.

Stellerators like Germany's Wendelstein 7-X, on the other hand, rely more heavily on banks of externally applied magnetic fields. While this makes for better control over the plasma, it also makes it harder to reach the temperatures needed for fusion to occur.


Both are making serious headway in our march towards fusion power. But those doughnuts holding the plasma are at least a few metres (a dozen feet) across, surrounded by complex banks of delicate electronics, making it unlikely we'll see them shrink to a home or mobile version any time soon.

In the early days of fusion research, a somewhat simpler method for squeezing a jet of plasma was to 'pinch' it through a magnetic field.

A relatively small device known as a zeta or 'Z'-pinch uses the specific orientation of a plasma's internal magnetic field to apply what's known as the Lorentz force to the flow of particles, effectively forcing its particles together through a bottleneck.

In some sense, the device isn't unlike a miniature version of its tokamak big brother. As such, it also suffers from similar stability issues that can cause its plasma to jump from the magnetic tracks and crash into the sides of its container.

In fact, iterations of the Z-pinch led to the chunky tokamak technology that superseded it. Given this major limitation, the Z-pinch has all but become a relic of history.


Hope remains that by going back to the roots of fusion, researchers might find a way to generate power without the need for complicated banks of surrounding machinery and magnets.

Now, researchers from the University of Washington have found an alternative approach to stabilising the plasma in a Z-pinch not only works, but it can be used to generate a burst of fusion.


To prevent the distortions in the plasma that cause it to escape the confines of its magnetic cage, the team manages the flow of the particles by applying a bit of fluid dynamics.

Introducing what is known as sheared axial flow to a short column of plasma has previously been studied as a potential way to improve stability in a Z-pinch, to rather limited effect.

Not to be deterred, physicists relied on computer simulations to show the concept was possible.

Using a mix of 20 percent deuterium and 80 percent hydrogen, the team managed to hold stable a 50 centimetre (1.6 foot) long column of plasma enough to achieve fusion, evidenced by a signature generation of neutrons being emitted.

We're only talking 5 microseconds worth of neutrons here, so don't clear space in your basement for your Z-Pinch 3000 Home Fusion Box quite yet. But the stability was 5,000 times longer than you'd expect without such a method being used, showing the principle is ripe for further study.

Generating clean, abundant fusion energy is still a dream we're all holding onto. A new approach to a less complex form of plasma technology could help remove at least some of the obstacles, if not prove to be a cheaper, more compact source of clean power in its own right.

The race towards the horizon of limitless energy production is only just warming up, folks. And it really can't come soon enough.

This research was published in Physical Review Letters.

https://www.sciencealert.com/a-breakthrough-revives-an-old-idea-for-nuclear-fusi...
Back to top
 
 
IP Logged
 
Prime Minister for Canyons
Gold Member
*****
Offline


Australian Politics

Posts: 26906
Canberra
Gender: male
Re: Nuclear Fusion
Reply #12 - Sep 24th, 2019 at 9:17am
 
Electric cars powered by elexctricity from nuclear fusion. Win Win/
Back to top
 

In a time of universal deceit — telling the truth is a revolutionary act.

No evidence whatsoever it can be attributed to George Orwell or Eric Arthur Blair (in fact the same guy)
 
IP Logged
 
Jovial Monk
Gold Member
*****
Online


Dogs not cats!

Posts: 43612
Gender: male
Re: Nuclear Fusion
Reply #13 - Sep 24th, 2019 at 12:07pm
 
juliar wrote on Sep 24th, 2019 at 7:43am:
Now the equally dull dreary boring uninformed Munkee is trotting out prepared Greeny replies. What a flop. A technical section is the last place a non technical body like Munkee should inhabit.


I take it you do not understand the implications of e = mc2

Don’t worry, most here are equally as ignorant as you, don’t feel lonely.
Back to top
 

Get the vaxx! 💉💉

If you don’t like abortions ignore them like you do school shootings.
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #14 - Sep 24th, 2019 at 4:10pm
 
BH is warming to the idea of frankfurts at tea time.

Silly old Munkee is suffering from fusion of the mind. He has not got the remotest clue about the topic. he just wants to make a noise to try to get noticed as he is usually ignored as a waste of space.

But leaving the naysayers in the dust and back to the TOPIC.





Nuclear Fusion Power
(Updated July 2019)

...

Fusion power offers the prospect of an almost inexhaustible source of energy for future generations, but it also presents so far insurmountable engineering challenges.

The fundamental challenge is to achieve a rate of heat emitted by a fusion plasma that exceeds the rate of energy injected into the plasma.

The main hope is centred on tokamak reactors and stellarators which confine a deuterium-tritium plasma magnetically.

Today, many countries take part in fusion research to some extent, led by the European Union, the USA, Russia and Japan, with vigorous programs also underway in China, Brazil, Canada, and Korea.

Initially, fusion research in the USA and USSR was linked to atomic weapons development, and it remained classified until the 1958 Atoms for Peace conference in Geneva.

Following a breakthrough at the Soviet tokamak, fusion research became 'big science' in the 1970s. But the cost and complexity of the devices involved increased to the point where international co-operation was the only way forward.

Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy.

Hydrogen, heated to very high temperatures changes from a gas to a plasma in which the negatively-charged electrons are separated from the positively-charged atomic nuclei (ions).

Normally, fusion is not possible because the strongly repulsive electrostatic forces between the positively charged nuclei prevent them from getting close enough together to collide and for fusion to occur.

However, if the conditions are such that the nuclei can overcome the electrostatic forces to the extent that they can come within a very close range of each other, then the attractive nuclear force (which binds protons and neutrons together in atomic nuclei) between the nuclei will outweigh the repulsive (electrostatic) force, allowing the nuclei to fuse together.

Such conditions can occur when the temperature increases, causing the ions to move faster and eventually reach speeds high enough to bring the ions close enough together. The nuclei can then fuse, causing a release of energy.

Fusion technology
In the Sun, massive gravitational forces create the right conditions for fusion, but on Earth they are much harder to achieve.

Fusion fuel – different isotopes of hydrogen – must be heated to extreme temperatures of the order of 50 million degrees Celsius, and must be kept stable under intense pressure, hence dense enough and confined for long enough to allow the nuclei to fuse.

The aim of the controlled fusion research program is to achieve 'ignition', which occurs when enough fusion reactions take place for the process to become self-sustaining, with fresh fuel then being added to continue it. Once ignition is achieved, there is net energy yield – about four times as much as with nuclear fission.

According to the Massachusetts Institute of Technology (MIT), the amount of power produced increases with the square of the pressure, so doubling the pressure leads to a fourfold increase in energy production.

With current technology, the reaction most readily feasible is between the nuclei of the two heavy forms (isotopes) of hydrogen – deuterium (D) and tritium (T).

Each D-T fusion event releases 17.6 MeV (2.8 x 10-12 joule, compared with 200 MeV for a U-235 fission and 3-4 MeV for D-D fusion).a On a mass basis, the D-T fusion reaction releases over four times as much energy as uranium fission.

Deuterium occurs naturally in seawater (30 grams per cubic metre), which makes it very abundant relative to other energy resources.

Tritium occurs naturally only in trace quantities (produced by cosmic rays) and is radioactive, with a half-life of around 12 years.

Usable quantities can be made in a conventional nuclear reactor, or in the present context, bred in a fusion system from lithium.b Lithium is found in large quantities (30 parts per million) in the Earth's crust and in weaker concentrations in the sea.

In a fusion reactor, the concept is that neutrons generated from the D-T fusion reaction will be absorbed in a blanket containing lithium which surrounds the core.

The lithium is then transformed into tritium (which is used to fuel the reactor) and helium. The blanket must be thick enough (about 1 metre) to slow down the high-energy (14 MeV) neutrons.

Read the full story here

https://www.world-nuclear.org/information-library/current-and-future-generation/...
Back to top
 
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #15 - Sep 24th, 2019 at 4:13pm
 
Quote:
Fusion power offers the prospect of an almost inexhaustible source of energy for future generations,
but it also presents so far insurmountable engineering challenges.



That's why we need to build 1000s of giant Thorium power stations
as quickly as possible to avoid a global catastrophe.
Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #16 - Sep 24th, 2019 at 4:21pm
 
Bobby still is dreaming about thorium. Apart from India and Netherlands nobody is much interested as uranium is much more developed.

An interesting description of the enormous complexity of Nuclear Fusion



Inside the nuclear fusion machine that could give us unlimited energy: Video reveals giant reactor with magnets the size of a 747
By ELLIE ZOLFAGHARIFARD FOR DAILYMAIL.COM  PUBLISHED: 06:29 AEST, 19 March 2016 | UPDATED: 06:59 AEST, 19 March 2016

Iter uses electric current to trap plasma inside a doughnut-shaped device long enough for fusion to occur
Engineers in France are currently building its 18 magnets that each weigh between 113,400kg and 226,800kg
Rocket scientists have been recruited to create super-strong materials that can hold these magnets in place
Construction of the nuclear reactor is expected to be completed by 2019 with trials starting as early as 2020


It is being hailed as the 'holy grail' of energy - a device that could realise the dream of create limitless supplies of power.


The International Thermonuclear Experimental Reactor (Iter) will be the world's largest tokamak nuclear fusion reactor when it's complete in 2019.

But its construction is proving a challenge.

A team of engineers in France is currently grappling with building the massive device, which has magnets that weigh as much as a Boeing 747.

A video released by the European Space Agency this week shows just how complex each component of the tokamak reactor is.

See all the awe inspiring pictures and a video here

https://www.dailymail.co.uk/sciencetech/article-3499309/Inside-nuclear-fusion-ma...
Back to top
 
 
IP Logged
 
Prime Minister for Canyons
Gold Member
*****
Offline


Australian Politics

Posts: 26906
Canberra
Gender: male
Re: Nuclear Fusion
Reply #17 - Sep 25th, 2019 at 2:20pm
 
juliar wrote on Sep 24th, 2019 at 4:10pm:
BH is warming to the idea of frankfurts at tea time.

Silly old Munkee is suffering from fusion of the mind. He has not got the remotest clue about the topic. he just wants to make a noise to try to get noticed as he is usually ignored as a waste of space.

But leaving the naysayers in the dust and back to the TOPIC.





Nuclear Fusion Power
(Updated July 2019)

https://s4.thingpic.com/images/Mi/PXbpiRM7qBfS28R8Tjyvuno7.png

Fusion power offers the prospect of an almost inexhaustible source of energy for future generations, but it also presents so far insurmountable engineering challenges.

The fundamental challenge is to achieve a rate of heat emitted by a fusion plasma that exceeds the rate of energy injected into the plasma.

The main hope is centred on tokamak reactors and stellarators which confine a deuterium-tritium plasma magnetically.

Today, many countries take part in fusion research to some extent, led by the European Union, the USA, Russia and Japan, with vigorous programs also underway in China, Brazil, Canada, and Korea.

Initially, fusion research in the USA and USSR was linked to atomic weapons development, and it remained classified until the 1958 Atoms for Peace conference in Geneva.

Following a breakthrough at the Soviet tokamak, fusion research became 'big science' in the 1970s. But the cost and complexity of the devices involved increased to the point where international co-operation was the only way forward.

Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy.

Hydrogen, heated to very high temperatures changes from a gas to a plasma in which the negatively-charged electrons are separated from the positively-charged atomic nuclei (ions).

Normally, fusion is not possible because the strongly repulsive electrostatic forces between the positively charged nuclei prevent them from getting close enough together to collide and for fusion to occur.

However, if the conditions are such that the nuclei can overcome the electrostatic forces to the extent that they can come within a very close range of each other, then the attractive nuclear force (which binds protons and neutrons together in atomic nuclei) between the nuclei will outweigh the repulsive (electrostatic) force, allowing the nuclei to fuse together.

Such conditions can occur when the temperature increases, causing the ions to move faster and eventually reach speeds high enough to bring the ions close enough together. The nuclei can then fuse, causing a release of energy.

Fusion technology
In the Sun, massive gravitational forces create the right conditions for fusion, but on Earth they are much harder to achieve.

Fusion fuel – different isotopes of hydrogen – must be heated to extreme temperatures of the order of 50 million degrees Celsius, and must be kept stable under intense pressure, hence dense enough and confined for long enough to allow the nuclei to fuse.

The aim of the controlled fusion research program is to achieve 'ignition', which occurs when enough fusion reactions take place for the process to become self-sustaining, with fresh fuel then being added to continue it. Once ignition is achieved, there is net energy yield – about four times as much as with nuclear fission.

According to the Massachusetts Institute of Technology (MIT), the amount of power produced increases with the square of the pressure, so doubling the pressure leads to a fourfold increase in energy production.

With current technology, the reaction most readily feasible is between the nuclei of the two heavy forms (isotopes) of hydrogen – deuterium (D) and tritium (T).

Each D-T fusion event releases 17.6 MeV (2.8 x 10-12 joule, compared with 200 MeV for a U-235 fission and 3-4 MeV for D-D fusion).a On a mass basis, the D-T fusion reaction releases over four times as much energy as uranium fission.

Deuterium occurs naturally in seawater (30 grams per cubic metre), which makes it very abundant relative to other energy resources.

Tritium occurs naturally only in trace quantities (produced by cosmic rays) and is radioactive, with a half-life of around 12 years.

Usable quantities can be made in a conventional nuclear reactor, or in the present context, bred in a fusion system from lithium.b Lithium is found in large quantities (30 parts per million) in the Earth's crust and in weaker concentrations in the sea.

In a fusion reactor, the concept is that neutrons generated from the D-T fusion reaction will be absorbed in a blanket containing lithium which surrounds the core.

The lithium is then transformed into tritium (which is used to fuel the reactor) and helium. The blanket must be thick enough (about 1 metre) to slow down the high-energy (14 MeV) neutrons.

Read the full story here

https://www.world-nuclear.org/information-library/current-and-future-generation/...




Wow thanks for posting that I hadn't read about fusion since the last time I read about it in my physics textbook.
Back to top
 

In a time of universal deceit — telling the truth is a revolutionary act.

No evidence whatsoever it can be attributed to George Orwell or Eric Arthur Blair (in fact the same guy)
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #18 - Sep 26th, 2019 at 1:48pm
 
BH is that the one with cooking recipes in it ?
Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #19 - Sep 30th, 2019 at 8:58pm
 
Now how about some real heavy stuff ?


Nuclear fusion
PHYSICS WRITTEN BY: Robert W. Conn

...

Nuclear fusion, process by which nuclear reactions between light elements form heavier elements (up to iron). In cases where the interacting nuclei belong to elements with low atomic numbers (e.g., hydrogen [atomic number 1] or its isotopes deuterium and tritium), substantial amounts of energy are released.

The vast energy potential of nuclear fusion was first exploited in thermonuclear weapons, or hydrogen bombs, which were developed in the decade immediately following World War II. For a detailed history of this development, see nuclear weapon.

Meanwhile, the potential peaceful applications of nuclear fusion, especially in view of the essentially limitless supply of fusion fuel on Earth, have encouraged an immense effort to harness this process for the production of power. For more detailed information on this effort, see fusion reactor.

This article focuses on the physics of the fusion reaction and on the principles of achieving sustained energy-producing fusion reactions.

The Fusion Reaction
Fusion reactions constitute the fundamental energy source of stars, including the Sun. The evolution of stars can be viewed as a passage through various stages as thermonuclear reactions and nucleosynthesis cause compositional changes over long time spans.

Hydrogen (H) “burning” initiates the fusion energy source of stars and leads to the formation of helium (He). Generation of fusion energy for practical use also relies on fusion reactions between the lightest elements that burn to form helium.

In fact, the heavy isotopes of hydrogen—deuterium (D) and tritium (T)—react more efficiently with each other, and, when they do undergo fusion, they yield more energy per reaction than do two hydrogen nuclei. (The hydrogen nucleus consists of a single proton. The deuterium nucleus has one proton and one neutron, while tritium has one proton and two neutrons.)

Fusion reactions between light elements, like fission reactions that split heavy elements, release energy because of a key feature of nuclear matter called the binding energy, which can be released through fusion or fission.

The binding energy of the nucleus is a measure of the efficiency with which its constituent nucleons are bound together. Take, for example, an element with Z protons and N neutrons in its nucleus.

The element’s atomic weight A is Z + N, and its atomic number is Z. The binding energy B is the energy associated with the mass difference between the Z protons and N neutrons considered separately and the nucleons bound together (Z + N) in a nucleus of mass M. The formula is

B = (Zmp + Nmn − M)c2,

where mp and mn are the proton and neutron masses and c is the speed of light.

It has been determined experimentally that the binding energy per nucleon is a maximum of about 1.4 10−12 joule at an atomic mass number of approximately 60—that is, approximately the atomic mass number of iron. Accordingly, the fusion of elements lighter than iron or the splitting of heavier ones generally leads to a net release of energy.

Read on here to learn the complexities of Nuclear Fusion.

https://www.britannica.com/science/nuclear-fusion#ref259117
Back to top
 
 
IP Logged
 
Prime Minister for Canyons
Gold Member
*****
Offline


Australian Politics

Posts: 26906
Canberra
Gender: male
Re: Nuclear Fusion
Reply #20 - Sep 30th, 2019 at 10:19pm
 
juliar wrote on Sep 26th, 2019 at 1:48pm:
BH is that the one with cooking recipes in it ?



No the one I got when I attended ARPANSA for radiation safety training.
Back to top
 

In a time of universal deceit — telling the truth is a revolutionary act.

No evidence whatsoever it can be attributed to George Orwell or Eric Arthur Blair (in fact the same guy)
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #21 - Oct 1st, 2019 at 1:43am
 
BH, is that microwave cooking radiation ?
Back to top
 
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #22 - Oct 1st, 2019 at 4:42am
 
juliar wrote on Sep 24th, 2019 at 4:21pm:
Bobby still is dreaming about thorium. Apart from India and Netherlands nobody is much interested as uranium is much more developed.




But fusion is always 20 years away.
It's been 20 years away every year for the last 70 years.
Even the giant ITER reactor is only a prototype.

A Thorium reactor was working in 1968.



...

Alvin Weinberg, then the director of Oak Ridge National Laboratory, marks 6000 power hours performance of his brainchild, the Molten Salt Reactor Experiment, in October 1967.
Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #23 - Oct 1st, 2019 at 8:56am
 
Yes Bobby everyone knows that.

But it was basically a prototype in the lab and was abandoned to make bombs with plutonium from nuclear reactors.

Now enormous development has gone into nuclear reactors so they are almost a package deal now being used for submarines and aircraft carriers and France has most successfully employed them.

See the catch is that there is not enough financial incentive as yet to undertake the enormous amount of costly research and development work required to bring thorium reactors up to commercial readiness. And thorium reactors are not without their operational problems.

India has been trying for nearly a century to build one without any real success and similarly the Netherlands has had a go at it.

But India and the Netherlands are technically primitive compared to the USA and until the USA decides to develop a practical commercial thorium reactor then they won't exist.

And if the nuclear fusion reactor being built right now is a success then nobody will bother with thorium.

Only time will tell.
Back to top
 
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #24 - Oct 1st, 2019 at 9:03am
 
juliar wrote on Oct 1st, 2019 at 8:56am:
Yes Bobby everyone knows that.

But it was basically a prototype in the lab and was abandoned to make bombs with plutonium from nuclear reactors.

Now enormous development has gone into nuclear reactors so they are almost a package deal now being used for submarines and aircraft carriers and France has most successfully employed them.

See the catch is that there is not enough financial incentive as yet to undertake the enormous amount of costly research and development work required to bring thorium reactors up to commercial readiness. And thorium reactors are not without their operational problems.

India has been trying for nearly a century to build one without any real success and similarly the Netherlands has had a go at it.

But India and the Netherlands are technically primitive compared to the USA and until the USA decides to develop a practical commercial thorium reactor then they won't exist.

And if the nuclear fusion reactor being built right now is a success then nobody will bother with thorium.

Only time will tell.


The Indians or Chinese will have
a working Thorium reactor in
less than 2 years.


Back to top
 
 
IP Logged
 
Sir lastnail
Gold Member
*****
Offline


Australian Politics

Posts: 29705
Gender: male
Re: Nuclear Fusion
Reply #25 - Oct 1st, 2019 at 9:33am
 
Bobby. wrote on Oct 1st, 2019 at 4:42am:
juliar wrote on Sep 24th, 2019 at 4:21pm:
Bobby still is dreaming about thorium. Apart from India and Netherlands nobody is much interested as uranium is much more developed.




But fusion is always 20 years away.
It's been 20 years away every year for the last 70 years.
Even the giant ITER reactor is only a prototype.

A Thorium reactor was working in 1968.



https://www.ornl.gov/sites/default/files/styles/main_image_style/public/news/ima...

Alvin Weinberg, then the director of Oak Ridge National Laboratory, marks 6000 power hours performance of his brainchild, the Molten Salt Reactor Experiment, in October 1967.


like hydrogen all of sockos recommendations are always 20 years away Cheesy LOL
Back to top
 

In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #26 - Oct 1st, 2019 at 9:42am
 
Sir lastnail wrote on Oct 1st, 2019 at 9:33am:
Bobby. wrote on Oct 1st, 2019 at 4:42am:
juliar wrote on Sep 24th, 2019 at 4:21pm:
Bobby still is dreaming about thorium. Apart from India and Netherlands nobody is much interested as uranium is much more developed.




But fusion is always 20 years away.
It's been 20 years away every year for the last 70 years.
Even the giant ITER reactor is only a prototype.

A Thorium reactor was working in 1968.



https://www.ornl.gov/sites/default/files/styles/main_image_style/public/news/ima...

Alvin Weinberg, then the director of Oak Ridge National Laboratory, marks 6000 power hours performance of his brainchild, the Molten Salt Reactor Experiment, in October 1967.


like hydrogen all of sockos recommendations are always 20 years away Cheesy LOL



The only reason we don't have safe, cheap,
unlimited Thorium power is that all the research
money went into Uranium reactors to make
Plutonium for evil nuclear weapons.
1000 years from now they will look back
at the criminals who made nuclear weapons
instead of cheap power and they will
be named and disgraced.
There is simply no reason why we are
still burning coal other than criminals
who run our lives.
I hope they all burn in hell.

Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #27 - Oct 1st, 2019 at 12:03pm
 
The totally loony demented crazy Greeny Scunge slides in to display her legendary ignorance.

Bobby seems to be despairing as the disappointing truth about Thorium that was beaten by uranium leaks out.

This time next century no doubt India will be still trying to get theirs going in the lab.


But hope springs eternal as there is a company in Canada that is trying to make a thorium machine.

http://www.thoriumpowercanada.com/technology/



...

Let’s produce a GWye!
(1 GWye = roughly the electricity for one million people, living by western standards, for one year)

Let us suppose it is our mission to produce electricity for a run-of-the-mill city with about 1 million inhabitants living by Western standards. This city will need about thousand megawatts of electricity, year round, in short 1GWye.

In the visual, I compare four ways to accomplish this, along with the input and output of each of the options.

For those who wonder: yes, I redrew the original scheme of Kirk Sorensen. I copied his info on the Liquid Fluoride Thorium Reactor and conventional nuclear, the Light Water Reactor.

I added two options though: coal and the IMSR. Coal is what all nuclear options should be compared to. IMSR is LeBlanc’s Integral Molten Salt Reactor, which I think is Sorensen’s main competition in new nuclear.

Read on here

http://www.daretothink.org/numbers-not-adjectives/lets-produce-a-gwye/

Back to top
 
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #28 - Oct 1st, 2019 at 12:20pm
 
Juliar proves that Thorium is the best solution.

Thanks.
Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #29 - Oct 1st, 2019 at 12:34pm
 
Wonder how the Canadian Company will go ?

Their blurb sounds good but how many of their thorium reactors have been installed ?  Are there any actually working ?  Will it all just fizzle thru lack of interest ?
Back to top
 
 
IP Logged
 
Prime Minister for Canyons
Gold Member
*****
Offline


Australian Politics

Posts: 26906
Canberra
Gender: male
Re: Nuclear Fusion
Reply #30 - Oct 1st, 2019 at 1:08pm
 
juliar wrote on Oct 1st, 2019 at 1:43am:
BH, is that microwave cooking radiation ?




Google ARPANSA first
Back to top
 

In a time of universal deceit — telling the truth is a revolutionary act.

No evidence whatsoever it can be attributed to George Orwell or Eric Arthur Blair (in fact the same guy)
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #31 - Oct 1st, 2019 at 2:38pm
 
juliar wrote on Oct 1st, 2019 at 12:34pm:
Wonder how the Canadian Company will go ?

Their blurb sounds good but how many of their thorium reactors have been installed ?  Are there any actually working ?  Will it all just fizzle thru lack of interest ?



It may require the US Govt. to kick-start it all -
private companies have been piss farting around for 50 years.
We'd never have Uranium reactors if it wasn't for the Manhattan project.
Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #32 - Oct 1st, 2019 at 7:30pm
 
ARPANSA is BH's favorite dish at Bali.

Actually that thorium company is in Canada. Wonder why they don't sell some to India and the Netherlands and Norway as they have been trying for donkey's years to get one going ?

But Bobby you are quite correct about the funding as Govt help is essential to get this sort of thing up and going.
Back to top
« Last Edit: Oct 1st, 2019 at 7:39pm by juliar »  
 
IP Logged
 
Bobby.
Gold Member
*****
Offline


Australian Politics

Posts: 95261
Melbourne
Gender: male
Re: Nuclear Fusion
Reply #33 - Oct 1st, 2019 at 7:50pm
 
juliar wrote on Oct 1st, 2019 at 7:30pm:
ARPANSA is BH's favorite dish at Bali.

Actually that thorium company is in Canada. Wonder why they don't sell some to India and the Netherlands and Norway as they have been trying for donkey's years to get one going ?

But Bobby you are quite correct about the funding as Govt help is essential to get this sort of thing up and going.



The experimental reactor in 1968 was only 1 megawatt.
A power station needs to be a Gigawatt -
which is 1000 times the size.
Back to top
 
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #34 - Oct 1st, 2019 at 8:40pm
 
Bobby now this might be a bit more encouraging for you as it seems to be fair dinkum.



A Thorium Molten Salt Reactor When and Where You Need It
05/01/2019 | James M. Hylko

ThorConIsle is an offshore 500-MWe thorium molten salt reactor constructed inside a ship’s hull, ready to provide power from navigable waterways. The ThorCon “pot” operates at a pressure of 3 bar gauge, similar to garden hose pressure, has one moving part—the pump impeller—and uses a four-loop steam cycle, attaining 45% efficiency. The design could be a game-changer for the nuclear industry.

Numerous factors are considered when screening candidate sites to construct and operate a land-based nuclear plant. Important site characteristics (such as access to cooling water, distances to large population centers, and seismic activity in the area) are verified through field reconnaissance, and weighting factors are combined with decision-analysis methods to differentiate and select acceptable sites. The process appears straightforward, but the subjective nature of balancing environmental amenities against economics, social benefits, and other agendas can create indefinite delays. A reasonable alternative to accommodate these desired site characteristics is to look offshore.

ThorConIsle
POWER has previously reported on Indonesia’s interest in ThorCon’s thorium molten salt reactors (see “Indonesia Considers Thorium Molten Salt Reactors” in the May 2017 issue and online at powermag.com). ThorCon co-founder, Robert Hargraves, recently spoke to POWER and provided an update on ThorConIsle, an offshore 500-MWe nuclear plant (Figure 1).

...
Figure 1. This plan view of ThorConIsle (with dimensions in meters) shows the fission island on the left, which takes up about one-third of the ship’s total length, turbine hall in the center, and gas-insulated switchgear (GIS) hall on the right. Pre-fabricated, modular power blocks are encapsulated inside the hull using a shipyard-style assembly process. Courtesy: ThorCon

Surface and submerged offshore nuclear plants have operated for decades, specifically by the U.S. Navy’s fleet of aircraft carriers and submarines, among others. A civilian example is the Academik Lomonosov floating nuclear plant, which is being deployed to provide power in Pevek, Russia (see “Novel Floating Power Plants on the Horizon” in the December 2018 issue).

There is also an extensive history with sodium-cooled reactors. The Los Alamos Molten Plutonium Reactor Experiment (LAMPRE) and the USS Seawolf (SSN-575) offer a couple of examples. Thus, the ThorCon design needs no new technology and reflects a scaled-up version of the molten salt reactor experiment conducted at the Oak Ridge National Laboratory in Tennessee in the 1960s (see “Molten Salt Reactors: Military Applications Behind the Energy Promises,” in the December 2018 issue).

ThorConIsle can be located on navigable waterways, with its electrical power transmitted to a land-based switching station. This is significant because half the world’s population lives within 100 kilometers of the sea, so coastal power is in high demand. A breakwater and water depth protect against maritime traffic collisions and tsunamis, respectively.

Feasibility Study: Indonesia
Indonesia is an 18,000-island archipelago in Southeast Asia. The majority of the country’s power comes from coal-fired generation (56% in 2015), with natural gas (25%), oil (9%), hydro (6%), and geothermal (4%) also in the mix. A commitment to reduce emissions by 29% is expected by 2030.


Lots more here

https://www.powermag.com/a-thorium-molten-salt-reactor-when-and-where-you-need-i...
Back to top
 
 
IP Logged
 
Prime Minister for Canyons
Gold Member
*****
Offline


Australian Politics

Posts: 26906
Canberra
Gender: male
Re: Nuclear Fusion
Reply #35 - Oct 1st, 2019 at 9:16pm
 
juliar wrote on Oct 1st, 2019 at 7:30pm:
ARPANSA is BH's favorite dish at Bali.

Actually that thorium company is in Canada. Wonder why they don't sell some to India and the Netherlands and Norway as they have been trying for donkey's years to get one going ?

But Bobby you are quite correct about the funding as Govt help is essential to get this sort of thing up and going.


So you have  no idea, congrats
Back to top
 

In a time of universal deceit — telling the truth is a revolutionary act.

No evidence whatsoever it can be attributed to George Orwell or Eric Arthur Blair (in fact the same guy)
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #36 - Oct 1st, 2019 at 9:41pm
 
BH your culinary cuisine is exquisite.
Back to top
 
 
IP Logged
 
Prime Minister for Canyons
Gold Member
*****
Offline


Australian Politics

Posts: 26906
Canberra
Gender: male
Re: Nuclear Fusion
Reply #37 - Oct 2nd, 2019 at 9:30am
 
juliar wrote on Oct 1st, 2019 at 9:41pm:
BH your culinary cuisine is exquisite.



Indeed, so is my qualification from the Radiation Safety body in this country.
Back to top
 

In a time of universal deceit — telling the truth is a revolutionary act.

No evidence whatsoever it can be attributed to George Orwell or Eric Arthur Blair (in fact the same guy)
 
IP Logged
 
Prime Minister for Canyons
Gold Member
*****
Offline


Australian Politics

Posts: 26906
Canberra
Gender: male
Re: Nuclear Fusion
Reply #38 - Oct 2nd, 2019 at 9:31am
 
juliar wrote on Oct 1st, 2019 at 9:41pm:
BH your culinary cuisine is exquisite.




I make a particularly good bremsstrahlung
Back to top
 

In a time of universal deceit — telling the truth is a revolutionary act.

No evidence whatsoever it can be attributed to George Orwell or Eric Arthur Blair (in fact the same guy)
 
IP Logged
 
juliar
Gold Member
*****
Offline


Australian Politics

Posts: 22966
Re: Nuclear Fusion
Reply #39 - Oct 2nd, 2019 at 9:58am
 
BH you are a magnificent cooking supremo.

And it is good that you are so aware of the hazard of microwave radiation when you are looking thru the glass door at your cooking masterpiece.
Back to top
 
 
IP Logged
 
Pages: 1 
Send Topic Print