Admiral Tzemesce wrote:
Another big reason the nuclear power hasn't become more widespread is because of the waste it produces. Too many states take a NIMBY aproach when it comes to deciding where to store the "spent" fuel rods.
True. Honestly though, the waste, and the cost to deal with the waste is far less of an environmental problem than any viable alternative we have available to us right now. Also, in terms of volume nuclear waste is very very minimal. This issue is really just an offshoot of the "no nukes" stigma that nuclear power has in this country. It's bizarre IMO.
Quote:
I say "spent" because these rods still have a significant majority of their radioactive fuel left in them. Civilian reactors are horribly inefficient, and the fuel rods needs to be replaced fairly often. Military reactors, the kind that are found on submarines and aircraft carriers, are much more efficient and can run for decades before needing their fuel rods replaced.
Civilian reactors are just as efficient as those used by the military. Honestly, nuclear power generation really just isn't that complicated at all. There are tradeoffs based on maximum and sustained output desired and longevity and maintenance costs that drive the method of reaction and the type of reactor. The reason military reactors seem so efficient is because they are designed for a completely different purpose. They're relatively enclosed idiot-boxes which produce a relatively small amount of power/heat for a relatively long period of time before they are replaced. They're essentially nuclear batteries.
That works great if you're using them as effectively plug-in power modules for something the size of a ship. If you want to power a city, you need something larger with a much much higher maximum power output. That's going to require a more active reactor, greater reactor output range, a whole host of components to regulate the output, and a mechanism to refuel the reactor that doesn't require simply building another one and plugging it in. Hence, fuel rods. That's an element of the efficiency of a civilian reactor, not the other way around. We re-use the bulk of the reactor components and just replace the nuclear fuel itself. A military reactor is simply replaced entirely when it's no longer able to produce sufficient power. You don't know, much less see where they store those, so you don't think about it.
It would be much much more "efficient" for military reactors to use a fuel rod system as well. But this would require building reactors which could be refueled in port, rather than in drydock, which would make the reactors themselves more susceptible to damage during battle. Which is a "bad thing". Military reactors used on ships are not designed for efficiency, but for absolute security and stability.
Quote:
The military won't allow its reactor technology to be used in the civilian sector for whatever reason. Until then, our current reactors will have to do, complete with their huge real estate footprint, cooling towers, and "spent" fuel rods.
Again. Those have nothing to do with some super-secret military technology. The design for large city-powering nuclear reactors are the way they are because that is the best way to fulfill the needs of those reactors. Technology and design has improved over the last 40 years, as has safety. Civilian reactors are absolutely fine for generating power IMO.
Quote:
EDIT: I am pro-nuclear power, btw. I think we should be replacing coal powered generating stations with nuclear ones.
As am I. I'm frankly mystified as to why this is even a question. The efficiency, total power, cost, and environmental impact are all positives in favor of nuclear power. If we could just get past the knee-jerk reactions and look at them realistically in the context of the alternatives.
Edited, Jun 4th 2009 9:21am by Tzemesce[/quote]