Community > Forum > Technology & Science > Thermopower Wave: Nanotube Electron Entrainment

Thermopower Wave: Nanotube Electron Entrainment

Posted by: sanman - Tue Mar 09, 2010 2:23 am
Post new topic Reply to topic
 [ 2 posts ] 
Thermopower Wave: Nanotube Electron Entrainment 
Author Message
Space Walker
Space Walker
avatar
Joined: Tue Sep 15, 2009 11:59 pm
Posts: 188
Post Thermopower Wave: Nanotube Electron Entrainment   Posted on: Tue Mar 09, 2010 2:23 am
Apparently, carrying out an exothermic reaction along the length of a nanotube can result in a "thermopower wave" which results from "electron entrainment" (a wave propagating along the nanotube which pushes electrons along, resulting in a power spike)

http://www.physorg.com/news187186888.html


So what can this be used for? What is the efficiency of conversion of the chemical energy into electrical energy?

Is there some special conversion efficiency advantage being achieved here because of nanotubes being an alleged "quantum wire"?

Could you use this as a bulk electrochemical material to power an ion engine and obtain very high thrust without using a nuclear reactor?

Could it be used to power tactical laser weapons maybe?

Could it be used to power krytron-style ignition devices for multi-stage vehicles?


Back to top
Profile
Space Walker
Space Walker
avatar
Joined: Tue Sep 15, 2009 11:59 pm
Posts: 188
Post Re: Thermopower Wave: Nanotube Electron Entrainment   Posted on: Tue Mar 09, 2010 8:53 pm
Here's a BBC news article with a video embedded:

http://news.bbc.co.uk/2/hi/science/nature/8556656.stm

To me, this thing is like a "quantum wire" ("quantum fuse"?)

It's exploiting the fact that the electrons are confined to the tube/wire, and stampeding them along it, like forcing a pressure wave through a tight channel.

The electrons and the wave that's driving them can't just go in any old direction, so the wave's energy is then amplifying the electrons' energy, to give the current more power. They're claiming 100 times more energy than a Lithium-ion battery.

So obviously this system is not reversible, so you only use it once, like a match.

But this "quantum fuse" is then able to drive a powerful current. I'm wondering if it could power a VASIMR-style plasma-thruster instead of a nuclear reactor. Things like plasma-thrusters need a lot of power to operate:

http://www.space.com/businesstechnology ... 00305.html


Back to top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 
 

Who is online 

Users browsing this forum: No registered users and 27 guests


© 2014 The International Space Fellowship, developed by Gabitasoft Interactive. All Rights Reserved.  Privacy Policy | Terms of Use