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/sci/ - Science & Math


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File: 53 KB, 910x605, nuclear-fusion.jpg [View same] [iqdb] [saucenao] [google]
2419483 No.2419483 [Reply] [Original]

What is everyones thoughts on energy from nuclear fusion, instead of fission? I don't know a lot on the matter, but I remember a few things like the fuel is an isotope of Hydrogen (deuterium or tritium), we are striving for the break even point.

TL;DR: Info and thoughts on nuclear fusion

>> No.2419498

at first i found it quite repulsive but now it's massively attractive

>> No.2419506

>>2419498
D'OHOHOOHOHOHO!

>> No.2419527

Nuclear fusion is impossible. It's an obvious violation of the conservation of mass and energy.

So you combine Deuterium and Tritium. That's 3 neutrons, 2 protons. You get 2 protons and 3 neutrons. Where does the energy come from?

If one of the neutrons was turned into energy, I'd understand because of mass-energy equivalence, but this reeks of pseudoscience bullshit like all those perpetual motions.

>> No.2419542

Because here in 'merica, you've got people who yell and spit speculation and statistics that have little to do with or do not reflect the entire issue, they are often skewed and they never reveal what the primary observation was to have a statistic, and here goes why America only has a few Nuclear Power Stations

>> No.2419557

>>2419527
the energy comes from that extra neutron in OP's pic that gets rejected. The energy comes from the nucleus through strong and weak interactions, it takes A LOT of energy to do this and in massive amounts such as liters and liters of deuterium and tritium thats A LOT of energy released

>> No.2419564

>>2419557
>he doesn't get the joke

>> No.2419577
File: 15 KB, 220x210, 1231697676787.jpg [View same] [iqdb] [saucenao] [google]
2419577

>>2419527
>Nuclear fusion is impossible

>> No.2419580

>>2419527
If I recall, nuclear fusion has already been done many times over. The problem is that we can't maintain the temperatures necessary to keep a reactor going.

tldr: it's an engineering problem, not a question of possibility.

>> No.2419642

I know that we may be overlooking the obvious, but is fusion not the idea behind the H-Bomb? The question is how to contain the energy released from fusion rather than if we can produce fusion.

>> No.2419689

ITER, females dogs.

>> No.2420036

>>2419527
Multiply the mass of hydrogen 4 times
Subtract the mass of helium from (the mass of hydrogen times 4)
m = 4.002602g/mol - (1.00794g/mol*4)
m = 4.002602 - 4.03176
m = -0.029158g/mol

Wow, some mass has disappeared! Since E=mc^2, the energy produced when 4 mols(4.03176 grams) of hyrdogen-1 atoms are fused into Helium-4 is:
E=(0.029158g)(2.9979×10^8 m/s)^2
E=(0.000029158kg)(8.98740441×10^16 m^2/s^2)
E=2,620,547 Megajoules or 727,929 Kilowatt Hours

The average household uses in his brain
72,000 MJ per year or 20,000kWh per year

>> No.2420067
File: 23 KB, 396x304, 1278753551169.jpg [View same] [iqdb] [saucenao] [google]
2420067

>>2419527

>nuclear fusion is impossible
>stars
>my photons when

>> No.2421409
File: 24 KB, 300x273, 1293945555790s.jpg [View same] [iqdb] [saucenao] [google]
2421409

http://www.journal-of-nuclear-physics.com/?p=360