Nuclear Energy: all your questions!

[Cuicui]

solar thermal energy to produce electricity and at best trivial in France.

In my view, make electricity with thermal sun is complicated. It is better to use solar thermal energy to directly heat water or housing, especially in combination with photovoltaic panels to cool them.
In my case, I stuck 40 m2 thermal solar on my roof not to make electricity, but to save. 2 hours of sunshine full pot 1000 give me the hot water, the rest goes to a small indoor pool that contributes to heating the house.
Since 30 years that the system works, I saved a lot of kWh that EDF did not need to happen.
Why not add to the existing solar thermal collectors in France and to count the nuclear units they can save?

[dedeleco]

This observation and experience by cuicui is very important, I am curious about the practical experience of cuicui since 30ans and must make it known, with its real savings, in hot water and heating, for an investment of how much 30 years ago, very rare at that time.
We must convince generalize thermal heating to more homes.
2% savings per year in France a nuclear power plant gives less !!
If all had French flags as cuicui, 40m2 of how thermal panels would save us, with not too expensive panels for a worthwhile investment, even if the performance is not optimal ????
The actual cuicui of practical experience can be very motivating to copy !!

The dream (very possible) is to store solar energy in the summer heat for the winter in the ground, which can become very profitable, if you put up a micro driller cheap robot, based on a perforator, servomotors, trade controls and microprocessors that exist and that it is enough to combine. !!

[Cuicui]

The dream (very possible) is to store solar energy in the summer heat for winter

It was actually my original dream, but too complicated to achieve.
As was to redo the roof 1980, I fully processed solar southern slope, in self-construction. 40 m2 water collectors (absorbers while copper Martell-Catala alas longer manufactured) with automatic drain for not using glycol, 120 air sensors m2 (simple black painted metal), recently partially replaced by 26 m2 of photovoltaics. I never calculated that saves here, but I consume little electricity. For water sensors, a circulator W 120 enough. Heating only by wood stove.

[jlt22]

A site answering all your questions about nuclear power:

http://www.stormsmith.nl/

and dispelling any misconceptions about emissions CO2:

Chapter 1 (151 kb)

Emissions CO2 nuclear life cycle

We devote Chapter 1 of one of the most contentious issues in the current debate on the environment: emissions CO2. We calculate the ratio of emissions CO2 induced by the use of nuclear energy and that of a gas-fire plant of the same net (electrical) capacity.

If the uranium consumed by the system of nuclear energy was extracted from ores rich in CO2 report (nuclear / CO2 (gas) is less than unity, giving the impression that the application of nuclear energy would solve the problem of global warming.

However, as of rich ores are depleted this ratio increases until it finally becomes greater than one, which makes the use of nuclear energy unfavorable compared to simply burning fuels (like) directly fossils. In the long term, the use of nuclear energy gives us no solution.

[Cuicui]

In the long term, the use of nuclear energy gives us no solution.

Furthermore, EDF is careful not to mention CO2 emissions necessary to prospect, extract, transport, process nuclear combustble, and to build plants.

[chatelot16]

solar thermal energy to produce electricity and at best trivial in France.

In my view, make electricity with thermal sun is complicated. It is better to use solar thermal energy to directly heat water or housing, especially in combination with photovoltaic panels to cool them.
In my case, I stuck 40 m2 thermal solar on my roof not to make electricity, but to save. 2 hours of sunshine full pot 1000 give me the hot water, the rest goes to a small indoor pool that contributes to heating the house.
Since 30 years that the system works, I saved a lot of kWh that EDF did not need to happen.
Why not add to the existing solar thermal collectors in France and to count the nuclear units they can save?

the power given by the sun is limited to about 1000w per meter caré in full sun, but is not limited in temperature ... (or very high limit)

if we are content to flat panel is only hot water

if we do the same parabolic surface we get exactly the same thermal power, but at high temperature, we can run a steam engine that will make 20% in electricity and leave the 80% in heat as with planar sensor. So it is better, remains to industrialize to do it not too expensive

[chatelot16]

and if I ask a question in my turn probably very stupid:

is it possible to recover heat that requires so pretty these cooling towers to produce electricity ... (own )

first, the steam plume turn nothing dirty ... which is not unique to the nuclear waste is only

for maximum efficiency of the reactor tower cooling temperature should be as low as possible: is this the almost cold lukewarm heat, nothing good

to make useful heat, it must voluntarily increase this temperature, thus reducing the production of elevctricité: that heat will be a low price, but not free

if the heat user is next to the plant, the use of this heat, counting the reduction of electricity production is always profitable

if you must transport heat to heat the city, there will be a lot of loss will require a very high temperature departure ... and total return will be worse than leaving the maximum cooling, and let customer heating with heat pump!

district heating by nuclear power plant is a long time in Russia

everyone knows that the radio activity does not pass through the electric son, I do not know if customers would be many in France to want hot water directly from the nuclear power plant

[sen-no-sen]

jlvx wrote:
and if I ask a question in my turn probably very stupid:

is it possible to recover heat that requires so pretty these cooling towers to produce electricity ... (own Mr. Green)

It is quite possible, and this is one of the basic principle of the tower vortex intrinsically safe, such a device permettrais to multiply the power of a nuclear power plant by 2.
https://www.econologie.com/forums/tours-aerogeneratrices-a-effet-vortex-synthese-t3801.html

... remains that the vortex tower would "overshadow" the EPR too much, hence the lack of its development ...

[Christophe]

Monitoring and technical information on nuclear accidents in Japan in March 2011: https://www.econologie.com/forums/accident-n ... 10579.html

[Obamot]

[...] I am not manipulated by the "nuclear lobby"
However as I see a nuclear plant built in the United Arab Emirates, it worries me ...

Bein here, a good question. But those who defended the nuclear beak and fingernail and who went further, like PB2488, using turns that were sophism (but not always), since they posted about this type of arguments: "[...] He had to see the side of the Arab countries, the ones who have the sun, they choose nuclear power, why? Although they have all the money needed to invest as they would like in renewables and oil aplenty ... [...] "And add it as a formal and absolute proof of the profitability of nuclear VS all other forms of energy! Well they will no longer be able to use this argument!

Since the largest solar complex in the world, has just been inaugurated in ... Saudi Arabia:

The company GREENoneTEC produced solar panels with a total area of ​​36 000 m2.
Two Austrian companies have set up in Saudi Arabia the largest solar energy complex in the world, which will provide the energy needed to supply hot water to a university campus in Riyadh, they announced Friday.


The company GREENoneTEC installed in Sankt Veit (southern Austria), produced solar panels with a total area of ​​36 000 m2, for a total value of € 3,6 million (4,7 million).

These panels had to follow specific standards, with glass and a special mounting system, especially to withstand sandstorms, explained the company's boss, Robert Kanduth.

With the head of the research institute AEE Intec, Werner Weiss, Robert Kanduth said the facilities were in the test phase since the end of the year 2011, for a period of six months.

The complex, two times more than the world's largest installation to date in Denmark must provide the energy to power the campus "Princess Noura Bint Abdulrahman" in Riyadh, which houses almost 40 000 students and teachers.

This complex in Riyadh could be a first step for GREENoneTEC: it would be in negotiations with a copper mining group in the Atacama Desert in Chile, for an even bigger complex than that of the Saudi capital.

© Agence France-Presse

Source: ...>

And of course support at the time, that nuclear power was "Without danger" ....

Here, laughing this unearthing wire, Christophe ...: we see how much Addrelyn - carved in the same wood since working in the nuclear and defending him as such - was so confident to believe that he there would never again be a major accident ...:

Anyway dedeleco if ever another similar accident at Chernobyl arrives, it's the end of the nuclear industry (and ANPE for me).

... Only 8 months later barely there would Fukushima ...! There are times when we would have liked to be wrong.