natmaka

57 ms·

631.
by natmaka 4y ago
20.1% of France's uranium come from Kazakhstan. https://www.lemonde.fr/les-decodeurs/article/2022/01/24/l-in...
632.
by natmaka 4y ago
AFAIK the KONVOI became part of the EPR design, which at the time was the result of a France-Germany association.
633.
by natmaka 4y ago
There is not a single industrial adequate recycling reactor, after 70 years of intensive R&D. Can you name one?
634.
by natmaka 4y ago
There is a gorilla in this room: the more we obtain uranium (prospecting, mining, milling...), the more we add to the associated carbon footprint. Known reserves or uranium may provide for the current reactor fleet at best for the upcoming
635.
by natmaka 4y ago
Russia and its allies are major providers of uranium. This impacts even the US: https://www.reuters.com/business/energy/exclusive-us-utiliti... Kazakhstan is the main uranium provider of France.
636.
by natmaka 4y ago
> they turn off sometimes when the wind stops blowing or the sun isn’t shining. Spreading production at continental scale has a major beneficial impact, and such a huge grid is highly beneficial to any type of source (even nuclear). htt
637.
by natmaka 4y ago
Not sure 96 minutes will be sufficient in all load-following cases (bar a huge and therefore very expensive fleet of reactors). A gas turbine is way ahead here. Moreover in existing reactors the frequency of such adjustments is limited, f
638.
by natmaka 4y ago
... and one has to mass-manufacture them in order to lower the total cost. Outages at multiple nuclear plants can be correlated. Right now: https://www.theenergymix.com/2022/06/29/corrosion-problem-sh...
639.
by natmaka 4y ago
If renewables are adequate there is no need for this hot rubbish.
640.
by natmaka 4y ago
https://en.wikipedia.org/wiki/Asse_II_mine
641.
by natmaka 4y ago
https://global.kawasaki.com/news_211209-2e.pdf
642.
by natmaka 4y ago
https://edition.cnn.com/2022/08/01/world/water-battery-switz...
643.
by natmaka 4y ago
The more we obtain uranium (prospecting, mining, milling...), the more we add to the associated carbon footprint. Therefore a sustained growth of installed nuclear capacity will lead us to exploit mines at always lowering ore grades => m
644.
by natmaka 4y ago
Can you name a single industrial satisfyingly-working breeder reactor? AFAIK, and after ~70 years of research (juge investments in many nations) there is none.
645.
by natmaka 4y ago
Sorry bit I wrote "less lethal", not anything about telling from where the shot is coming, muzzle flash, recoil or anything in your answer full of correct statements (especially "nobody who has the option shoots unsuppressed&
646.
by natmaka 4y ago
It even makes many weapons less lethal as it is nearly useless with supersonic projectiles ('bang'), and using more adequate subsonic ones reduces the kinetic energy, and therefore expansion.
647.
by natmaka 4y ago
>> Indeed (this is a work in progress, and may indeed not be possible), however the industry already uses huge amounts of H (therefore short-term storage for intermittency compensation is possible), and more and more vehicles do so (t
648.
by natmaka 4y ago
> most big transit projects in Canada are over budget and over schedule. As far as I understand the main reasons are that many unplanned difficulties arise because work has to be done in populated areas, creating (sometimes) huge surpris
649.
by natmaka 4y ago
> estimates are not actual costs On matters such as those (vast, gov-funded, lengthy and intrinsically new projects) largely under-estimating seems way (way!) more probable to me. > Nobody has successfully deployed a hydrogen grid sto
650.
by natmaka 4y ago
> Not really 6 times - 3.3 to 12.6 billion is about 4 times 12.6 billions € are the construction costs right now (the reactor isn't running: they may raise), not the total cost which includes financial fees. Delayed delivery means
651.
by natmaka 4y ago
Quoting https://en.wikipedia.org/wiki/Fukushima_disaster_cleanup#Sco... : In 2016, Japan's Ministry of Economy, Trade and Industry estimated ((...)) decontamination costs estimated to rise from ¥2.5 trillion (US$2
652.
by natmaka 4y ago
The adequacy of Fukushima's ongoing cleanup is disputed, and it will cost $470 to $660 billion. https://en.wikipedia.org/wiki/Fukushima_disaster_cleanup#Cos... AFAIK nobody (here) advocates fossil fuel. Usually i
653.
by natmaka 4y ago
In 2004 France started a project aiming at building an industrial seed for its new reactor ("EPR"). Construction started in 2007, for a delivery scheduled in 2012. Its total cost is already nearly 6 times its budget, and will not
654.
by natmaka 4y ago
There is no need for each location to deploy each and every type of production unit: each region has its own geography and preferences. Those benefiting from huge potential for hydro, offshore wind or solar (deserts...) are at an advantage.
655.
by natmaka 4y ago
Spreading out production units of a mix (wind, solar, hydro, geothermal...) is key. For the sole wind: https://www.imperial.ac.uk/news/180592/european-cooperation-... Then comes storage, curtailment, and backup (a
656.
by natmaka 4y ago
I use it, maybe once a year since 2008 or so, in order to create illustrations for technical documentations, however I found myself playing with it. It is way more than a set of pencils and brushes, as it eases up many fundamental actions (
657.
by natmaka 4y ago
Many, however Inkscape is somewhat magical to me because while I have no talent (nor real interest) for drawing, it always enables me to quickly obtain something adequate.
658.
by natmaka 4y ago
This is about green hydrogen ( https://en.wikipedia.org/wiki/Green_hydrogen )
659.
by natmaka 4y ago
This is at best not very pertinent, for many reasons. 1/ Losses vary according to the way the hydrogen is produced then used, and there are multiples paths. Overview: https://assets.siemens-energy.com/siemens/asset
660.
by natmaka 4y ago
> Why are we putting all of our eggs in one basket? AFAIK because there is no other basket (hydrogen, the more promising, is far behind electricity, mainly because it is difficult to distribute and store).

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