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fission and fusion Answered

um any idays for a small power generator under this topic?

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kelseymh

4 years ago

Nope. Can't do it, unfortunately. Both methods require relatively large structures, partly to provide all the supporting systems to convert heat to electricity, and partly in the form of heavy shielding to protect against the lethal radiation produced by both processes.

If you're interested in what "small" means for fission reactors, look up the B&W "mPower" reactor design.

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Kitemankelseymh

Reply 4 years ago

Actually, it's quite easy to build a reactor core...

nuclearfission.gif
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kelseymhKiteman

Reply 4 years ago

:-)

The core itself can be small; 10 kilos or so of enriched uranium oxide. It's the moderator structure, the heat transfer system, and the heavy shielding that makes even a "small" reactor big (say, the size of a cottage).

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thematthatterkelseymh

Reply 4 years ago

I hope the OP isn't building one as an Eagle Scout Project.

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kelseymhthematthatter

Reply 4 years ago

Are Eagle Scout projects required to be original? Or is it more like I'bles, where you can do the same thing as someone else, but your take on it makes it original?

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thematthatterkelseymh

Reply 4 years ago

They have to show leadership, and benefit a community or organization other than Scouting. And the project has to be written with enough detail that anyone can come along and complete it if need be.
It doesn't have to be original, Ive cleaned about 4 or 5 cemeteries in my day. But a Boy Scout Committee has to approve the project before you can begin, or even collect stuff for it. Unique is better but having a teenager design a project that has never been done before can be challenging especially if they don't know where to start.

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KitemanKiteman

Reply 4 years ago

(Sorry, forgot to add the source: http://rudimentsofwisdom.com/pages_experiments/nuclearfission.htm)

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Jack A Lopezkelseymh

Reply 4 years ago

In the early 1960s, the Former US Army used to build "small" nuclear reactors, but I don't think they do  anymore.  I mean back then, the US Army, Navy, and the Air Force too, were all working independently their own different nuclear reactor projects.  Although it was only the Navy who managed to make the nuclear "marriage" work, i.e. they're the only branch still using nuclear reactors to power their equipment today.  Anyway, some old videos regarding the Army's reactors can be found on YouTube.  I think the highlights are the "Camp Century" promo, and also the documentary they made about the "SL-1" accident. Links below: 

City Under the Ice - 1961 United States Army in Greenland
http://www.youtube.com/watch?v=F-1t3yJhFpo

1961 Nuclear Reactor Meltdown : The SL-1 Accident
http://www.youtube.com/watch?v=FAKcWM-yBkI

Emotionally speaking, the Camp Century is more of a peppy, feel-good, flick about Former American pluck and ingenuity.  In contrast the SL-1 doc is more for folks interested in rubbernecking at a ghastly nuclear accident that involved somebody getting lethally irradiated and impaled to the ceiling of the containment building.

I think both films contain some brief footage of "small" nuclear reactors.

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steveastroukJack A Lopez

Reply 4 years ago

SL-1 jeeeeesssssiussss. Scariest thing I've seen for a long time. Interesting takeaway points. "3MW reactor, went from zero to 20,000 MW in 4milliseconds"

Second point: Allegedly very little radiation leaked from a building make from 1/4" thick sheet steel.

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Josehf Murchisonkelseymh

Reply 4 years ago

Don't tell him that, tell him yes but I'm keeping it to my self so I can be rich, rich, rich.

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Jack A Lopez

4 years ago

There's an Italian entrepreneur who has built a device about the size of a toaster oven, which he claims is nuclear.  The inputs are hydrogen gas and nickel metal, and this device supposedly outputs around 10 kW of heat, at a temperature hot enough to boil water, once it is turned on and running.

You can read more about this from the usual places:
http://en.wikipedia.org/wiki/Energy_Catalyzer
http://peswiki.com/index.php/Directory:Andrea_A._Rossi_Cold_Fusion_Generator_%28E-Cat%29

A word of warning about PESWiki: if you spend too much time there, you may wind up in a basement office with a poster on the wall that says "I WANT TO BELIEVE", as PESWiki is the kind of the place for all the science projects that are, at the time of this writing,  too kooky for mainstream science.

mulder-and-i-want-to-believe-poster.jpg
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KitemanJack A Lopez

Reply 4 years ago

If it's the size of a toaster, and he's not dying from acute radiation poisoning, it ain't nuclear.

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Jack A LopezKiteman

Reply 4 years ago

I dunno.  It might be legit, and who doesn't want their very own nuclear-toaster, or water heater?  You can sign up for the uh, whatchacallit, pre-waiting list here:
http://ecat.com/ecat-products/ecat-home

By the way, I have not yet found the courage to actually put my name on this waiting list, even though I truly do want my own nuclear-toaster-water-heater.

Although I can proudly say, I do have a copy of the "I WANT TO BELIEVE" poster on the wall of my basement office/laboratory.
;-)

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KitemanJack A Lopez

Reply 4 years ago

If it's the size of a toaster, and he's not dying from acute radiation poisoning, it ain't nuclear.

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kelseymh

4 years ago

You're not going to be able to build any kind of "safe and legal" fission reactor. Period.

Nobody knows yet how to build a fusion power generator (look up "ITER" and "NIF" for two of the research programs). However, you can build yourself a small-scale, safe and legal, plasma confinement system, which is the first step to a fusion generator.

Look up "Farnsworth fusor" for more information, and see the project in last month's MAKE magazine.

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ElectricBlue123

4 years ago

wow im ty and ok but I want it "safe and leagle"