You’re right about the slowness of building ITER, but it should be realised that it is a very simple machine compared with a electricity generating reactor which would need the addition of neutron multipliers, tritium breeding modules, heat extraction for the generators, and separate processing plants for the tritium and the multiplier/breeding materials. The complexity of all this speaks for itself, and the costs will be astronomical - even for smaller planned spherical machines.
Students are being taught to memorize and regurgitate prepackaged answers to set questions but they are not being taught to comprehend ideas and relationships.
@@raymondlancaster3355 I can know this because of my experience working on a fusion energy project decades ago. Because I finished first in my class in Physics at a school I chose for the reactor on campus. Because I've read and understood the scientific and technical basis of the energy requirements to build and operate fusion reactors, as well as the refineries needed for Deuterium, Tritium, and like reaction elements, and so forth and so on. It's been well understood for forty years that the best outcome possible is still two orders of magnitude less energy out than energy in, for fusion. If you need proof, do it the way I did: get a degree in the subject and work in the field.
@@raymondlancaster3355 He’s absolutely right. Briefly the problems include cost, tritium breeding and handling, 14 MeV neutron damage to sensors, insulators and metals (inducing swelling and brittleness), safety (tritium/lithium - both nasty), heat loads onto the diverters, plasma interactions with the first wall (erosion and dust), and finally the lack of any ways of testing components and systems (eg, tritium breeding efficiency) before construction.
4:24 The problem is ITER has taken too long to deliver. If it had been at its present stage 15 years ago, which is more or less what people envisioned back in 1989, the present gap between the closure of JET and the beginning of ITER operations would have probably not happened. I'm not getting into the reasons, which have more to do with bad organisation and poor planning than with science. What this video didn't report is that replies to the petition have already been issued by the UKAEA and EuroFusion, explaining why there are technical and economic reasons why JET will have to be decommissioned, which is a shame indeed. Having said that, the experience with D-T reactions acquired by the JET team will be hard to preserve until 1935, when ITER is planning to start such experiments. Parallel D-T experiments should have been planned, but they were suppressed in favour of funding ITER. Now the community will have to bear the consequences, I'm afraid.
The old saw "fusion is the energy of the future and it always will be" has been around since hector was a pup. I propose a new one. "No child born this day will ever live so long as to see one watt of fusion produced electricity flow from their wall outlet." Wheel spinning and money spending has been the 70 year arc for fusion energy since Lyman Spitzer toyed with the first stellarator in the 1950's. In 1938 we knew nothing of fission. Naturally, its first demonstrable power use was in a weapon of unheard of power in 1945. (7 years after fission's discovery) the first distributed fission electrical energy was in Russia in the early 1950's followed quickly in the US. ~15 years after the discovery of fission!! Fusion was demonstrated in the early 1930's. Nuff said...
Tokamaks are such a giant waste of money. They cost too much and it falls apart so quickly no matter how much money they throw at the project. The same money would fund 10 different approaches. they should have a contest instead of giving these screw up professors more money.
Thank you for the updates! The day will come!
Yay Fusion news! Ty. Always a joy to see this. : )
Always looking forward to this news, especially when presented by Dr. Kesler :)
ITER development is _so_ very slow. Although I suppse that's to be expected with it comprising a million+ parts and over 20k tons of steel.
You’re right about the slowness of building ITER, but it should be realised that it is a very simple machine compared with a electricity generating reactor which would need the addition of neutron multipliers, tritium breeding modules, heat extraction for the generators, and separate processing plants for the tritium and the multiplier/breeding materials. The complexity of all this speaks for itself, and the costs will be astronomical - even for smaller planned spherical machines.
The byline says 21 comments but I only count 12. Some there on the 15th have today (16th) disappeared!
I just tried posting a comment and it never appeared. Unusual. It was about Helion.
ruclips.net/video/_bDXXWQxK38/видео.htmlsi=sd5Tc8j6DFR7Fbiu
Students are being taught to memorize and regurgitate prepackaged answers to set questions but they are not being taught to comprehend ideas and relationships.
Commercial fusion power will never be feasible. While it's a fascinating topic for nuclear nerds, people need to be reminded of this fact.
How can you know this? The best way to look foolish is to make dramatic statements without proof.
@@raymondlancaster3355 I can know this because of my experience working on a fusion energy project decades ago. Because I finished first in my class in Physics at a school I chose for the reactor on campus. Because I've read and understood the scientific and technical basis of the energy requirements to build and operate fusion reactors, as well as the refineries needed for Deuterium, Tritium, and like reaction elements, and so forth and so on.
It's been well understood for forty years that the best outcome possible is still two orders of magnitude less energy out than energy in, for fusion.
If you need proof, do it the way I did: get a degree in the subject and work in the field.
@@raymondlancaster3355 He’s absolutely right. Briefly the problems include cost, tritium breeding and handling, 14 MeV neutron damage to sensors, insulators and metals (inducing swelling and brittleness), safety (tritium/lithium - both nasty), heat loads onto the diverters, plasma interactions with the first wall (erosion and dust), and finally the lack of any ways of testing components and systems (eg, tritium breeding efficiency) before construction.
So it's still 5 years away.
*30
@@AffidavidDonda always. Lol
No D-T experiments at ITER until 2035? Why bother?
Science. Gems of all color at the discovery price it's found at.
FIRST
plasma
¡Se ha tomado una anfetamina esta mañana! ¡Habla como si estuviera en una carrera de fórmula 1!
4:24 The problem is ITER has taken too long to deliver. If it had been at its present stage 15 years ago, which is more or less what people envisioned back in 1989, the present gap between the closure of JET and the beginning of ITER operations would have probably not happened. I'm not getting into the reasons, which have more to do with bad organisation and poor planning than with science. What this video didn't report is that replies to the petition have already been issued by the UKAEA and EuroFusion, explaining why there are technical and economic reasons why JET will have to be decommissioned, which is a shame indeed.
Having said that, the experience with D-T reactions acquired by the JET team will be hard to preserve until 1935, when ITER is planning to start such experiments. Parallel D-T experiments should have been planned, but they were suppressed in favour of funding ITER. Now the community will have to bear the consequences, I'm afraid.
The old saw "fusion is the energy of the future and it always will be" has been around since hector was a pup. I propose a new one. "No child born this day will ever live so long as to see one watt of fusion produced electricity flow from their wall outlet." Wheel spinning and money spending has been the 70 year arc for fusion energy since Lyman Spitzer toyed with the first stellarator in the 1950's.
In 1938 we knew nothing of fission. Naturally, its first demonstrable power use was in a weapon of unheard of power in 1945. (7 years after fission's discovery) the first distributed fission electrical energy was in Russia in the early 1950's followed quickly in the US. ~15 years after the discovery of fission!!
Fusion was demonstrated in the early 1930's. Nuff said...
Useless big huge spending on this mattter will never deliver anything usefull.
Fusion News
Nothing new for the next 50 years😒
Tokamaks are such a giant waste of money. They cost too much and it falls apart so quickly no matter how much money they throw at the project. The same money would fund 10 different approaches. they should have a contest instead of giving these screw up professors more money.