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Science Nuclear Power and Nuclear Energy, Dirty, Dangerous and Expensive

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SUSjoe_star
post Oct 14 2009, 01:51 AM

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QUOTE(DeniseLau @ Oct 12 2009, 08:28 PM)
Edit:
Unless I'm mistaken, E=mc^2 is not usable when we talk about nuclear power generation. We're not destroying the mass of uranium to create that energy. We're using the materials radiated heat to boil water and make steam which powers the turbine.
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I beg to differ. Mass balance of the released components of a fission reaction will show a small loss of mass from the original element+neutron. This lost mass is converted to pure energy by that famous equation of Einstein. The energy(in the form of heat) is then fed to a process fluid (liquid sodium) in the common manner as any power generation plant.

Most of the concerns regarding its application have been very well discussed by DeniseLau already. I would like to add that I feel Malaysia is a little late to jump onto the bandwagon. This initiative would have been a good idea perhaps 20 years ago (but then, we did not, and still dont really have the know how).

Imo, nuclear fission power production will eventually reach a dead end, similar to fossil fuels. The future lies in nuclear fusion. The conspiracy side in me says that its already been discovered, but not revealed to protect "certain" interests tongue.gif

This post has been edited by joe_star: Oct 14 2009, 02:00 AM
SUSjoe_star
post Oct 15 2009, 11:51 PM

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QUOTE
Tiny 'nuclear batteries' unveiled
Nuclear battery and a US dime
The team hopes to make nuclear batteries much smaller still

Researchers have demonstrated a penny-sized "nuclear battery" that produces energy from the decay of radioisotopes.

As radioactive substances decay, they release charged particles that when properly harvested can create an electrical current.

Nuclear batteries have been in use for military and aerospace applications, but are typically far larger.

The University of Missouri team says that the batteries hold a million times as much charge as standard batteries.

They have developed it in an attempt to scale down power sources for the tiny devices that fall under the category of micro- and nano-electromechanical systems (Mems and Nems).

The means to power such devices has been a subject of study as vigorous as the development of the devices themselves.


http://news.bbc.co.uk/2/hi/technology/8297934.stm

I remembered this article when someone mentioned nuclear energy on a small scale.

 

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