- 2 Posts
- 81 Comments
1010·6 months agoApple adheres to the principle of form over function, instead of the old but still valid form follows function design principle. But TBH I never liked their stuff or their over the top big cheese attitude. So it’s not a disgruntled apple user writing this.
Hers an interesting article on the dangers of Thorium reactors, including nuclear proliferation concerns: https://www.nature.com/articles/492031a
Here’s an article detailing why nuclear power production is not climate neutral. There a lot of CO2 emissions involved in nuclear power production: https://www.dw.com/en/fact-check-is-nuclear-energy-good-for-the-climate/a-59853315
Fossil fuel is IMHO no alternative and will only play a minimal role after 2038. Most of the countries, that have pledged to become climate neutral by 2050 will build new nuclear reactors to achieve this. So there will probably be enough energy to go around and Germany can buy such energy if the transition to 100% renewables did not work out as planned. But if it works out we will have a viable way to produce energy in climate neutral way without the hazards that accompany nuclear power production. If this can be proved to work, other countries would be able to emulate this strategy. IMHO this is an opportunity we can not let go to waste.
That’s a valid point. There is no consensus yet. But what’s the worst that would happen if we can’t achieved this goal in Germany, when we try? We will buy french nuclear power again. But what happens when it works out? Germany will be climate neutral and will be independent of nuclear power. No fission material is required, no uranium mining will be required for power production. So there’s the possibility to mitigate the negative impact of uranium mining, while getting rid of the dangers of nuclear power plants and not creating more nuclear waste for future generations to take care of. IMHO that’s a great opportunity that we should seize.
Research into this topic is fairly new, with very few studies published before 2009, but has gained increasing attention in recent years. The majority of studies show that a global transition to 100% renewable energy across all sectors – power, heat, transport and industry – is feasible and economically viable.
https://doi.org/10.1016%2Fj.apenergy.2020.116273
Can you substantiate your claim by offering a source, or is this your personal assessment?
Yes and again: Being against nuclear power production does not mean I’m a fossil fuel proponent. I think we have to get rid of both and achieve 100% renewables which is entirely feasible according to recent studies. Source: https://en.m.wikipedia.org/wiki/100%25_renewable_energy
You do know that the tens of thousands of people who developed cancer in the aftermath of the Chernobyl disaster are part of the biosphere? https://blog.ucsusa.org/lisbeth-gronlund/how-many-cancers-did-chernobyl-really-cause-updated/
I don’t agree. I think these accidents should make us aware of the dangers of nuclear power production and that there will always be a risk attached to it. There have been more than 30 nuclear power plant accidents with damage to the environment and the biosphere: https://en.m.wikipedia.org/wiki/Lists_of_nuclear_disasters_and_radioactive_incidents
So your saying the reactor was not safe and should have never been built that way? I agree.
I agree that newer reactors are more safe than old reactors but there’s still a significant risk involved. See Fukushima.
Tests will always have to be conducted to ensure normal operation. That’s nothing out of the ordinary.
I don’t think so. But I do think that Germans are more conscious about the dangers of nuclear waste as detailed in the earlier post.
Exactly and during that test the positive void coefficient caused the reactor to spiral out of control with no feedback to the control room, as detailed in the earlier post.
Here’s a paper about that: https://hal.science/hal-03117177/document
Even the nuclear power lobby organisation World Nuclear Association acknowledges that this is a massive design flaw: https://world-nuclear.org/information-library/nuclear-fuel-cycle/nuclear-power-reactors/appendices/rbmk-reactors.aspx
That’s not right. The experiment was conducted after the explosion in an effort to prove Nikolai Steinberg’s suspicion that the positive void coefficient caused the disaster. The experiment was a success and Steinberg’s suspicions have been verified.
No, I don’t think that Germans are enlightened. But I do think that the protests during the 70s and 80s led to an open public discussion about the risks of nuclear energy production and an increased consciousness of the dangers of nuclear waste.
Source: https://en.m.wikipedia.org/wiki/Anti-nuclear_movement_in_Germany
The positive void coefficient was directly responsible for the disaster: During low power operations the effect caused water vapour bubbles to be created in the reactor. Because of the lower density of the vapour the moderation of the reaction did no longer work and the reactor spiraled out of control. All the while there was no feedback to the control room about the increased reactivity, so the personal had no chance to assess the situation correctly. This lead to the uncontrolled chain reaction and the explosion of block 4.
After a while Nikolai Steinberg conducted an experiment in the other blocks of Chernobyl which showed that the positive void coefficient was causing the reactor to spiral out of control in low energy production scenarios.
Sources:
https://www.oecd-nea.org/jcms/pl_28271/chernobyl-chapter-i-the-site-and-accident-sequence
There’s a really good documentary about that, but alas it’s in German: https://www.zdf.de/dokumentation/zdfinfo-doku/tschernobyl-die-katastrophe-paradies-100.html
Nikolai Steinberg also coauthored a book about the accident: https://www.perlego.com/book/3418623/chernobyl-past-present-and-future-pdf
Of course there’s a way to store the nuclear waste. It’s stored on the surface where it is prone to environmental or other hazards. The majority of German populace don’t think this is safe.
BTW France is facing new problems for a couple of years now and had to power down nuclear power plants because the rivers had not enough water to cool them. This will probably happen a lot in the foreseeable future, so e.g. France needs to import power during the summer months.
Sources:
https://balkangreenenergynews.com/climate-change-water-scarcity-jeopardizing-french-nuclear-fleet/
The export of radioactive waste is still authorised but under much stricter rules. A nation receiving highly radioactive waste must have a deep underground repository. Such deep geological repositories do not exist anywhere in the world, the commission said, adding that none is under construction outside the EU. It takes at least 40 years to build one.
That’s objectively untrue. The RBMK reactor type as it was used in Chernobyl has a design flaw. It’s called the positive void effect:
This positive coefficient was another key aspect of the RBMK in reactor unit 4 of the Chernobyl power plant. In the events of the accident, the excess production of steam (meaning an increase of voids) caused the void coefficient to become unsafely large. When the power began to increase, even more steam was produced, which in turn led to an increase in power.[2] This led the reactor to produce over 100x its rated power output, causing extreme temperatures and pressures inside the core, and causing failure.
It’s the year of the Linux desktop.