tarre

14 ms·

31.
by tarre 14y ago
Atomic mass is totally different thing than density
32.
by tarre 14y ago
The record low in Stockholm is -26, not -16 C. At least according to wikipedia.
33.
by tarre 14y ago
Long story short. For breeder reactors getting neutron balance on to critical level is very challenging. You need one neutron to breed fertile material into fissile and another neutron to split the fissile nucleus. Usually 2-2.5 neutrons ar
34.
by tarre 14y ago
We agree on older plants being not as safe as new ones. My original sentence was about things you just can't prepare for (with any reasonable means). After that I just wanted to say, that it is possible to build plane-safe NPP.
35.
by tarre 14y ago
None of Germany's nuclear power plants is built after 2001. Before that hardly anyone cared about planes, when designing nuclear power plant.
36.
by tarre 14y ago
At least in European Union new nuclear power plants are designed to withstand a collision of any currently used commercial airplane.
37.
by tarre 14y ago
As I said, I don't know the safety systems of CANDU :) Large heat sink buys you time to get the cooling working again. Ultimately the heat must be transferred out somehow. In modern reactor designs these systems are usually designed to pass
38.
by tarre 14y ago
>Generally when talking about how safe a given sort of nuclear power is the most important thing to consider is whether it has a positive void coefficient or not. The void coefficient is only appropriate, when you are dealing with a cri
39.
by tarre 14y ago
>CANDU runs on natural uranium so the waste products are actually less radioactive than what we take out of the earth, as well CANDU can burn nuclear waste from light water reactors alleviating the need for Yucca mountain. There is less
40.
by tarre 14y ago
The activity of those filters is so low, that burying it a couple of meters into the ground works well.
41.
by tarre 14y ago
I don't know about other countries, but at least in Finland nuclear power companies pay the nation annually a deposit, which is used to take care of the spent fuel and to decommission the power plants. For now there is more than 1.5 billion
42.
by tarre 14y ago
I do hope, that we will have thorium reactors soon, but I don't completely agree with the reduced proliferation risk. In thorium reactor you would have weapon-grade uranium (isotope 233 and a hint of 232), which can be chemically isolated.
43.
by tarre 14y ago
In nuclear power plants you just don't walk in and install new equipment. When upgrading control room to digital, you pretty much also need to upgrade the automation of the plant to be digital and qualifying it to be used in NPP is a real n
44.
by tarre 14y ago
That was even said in the same interview, which was very interesting in my opinion. Sadly most people will only watch the least interesting 20 seconds of it.
45.
by tarre 14y ago
Half-life of plutonium-238 is 87.7 years so there should be approximately half of the original power left after that time. Nowadays the power of the device is about 75 % of original.
46.
by tarre 15y ago
You have it right. 20 % of electricity use means, that on average power is the same 20 %. When it is blowing in large areas, more than 50 % of electric power is produced by wind turbines and when it's not blowing the percentage may be very
47.
by tarre 15y ago
I'm not sure, if I'm thinking this way too simply, but I don't think any of those countermeasures work in this case. I don't know, if satellite gets signals from GPS-device (I don't think so), when using military signal, but anyway it will
48.
by tarre 15y ago
I think there is no need to hack the signal. It can be done by capturing and delaying signals. What you need for that is 1) the location of satellites. You can probably get it from the commercial signal. 2) transmission system, which overpo