Can Adding More Junctions Increase Thermoelectricity Production?

  • Thread starter Thread starter matthewgill
  • Start date Start date
  • Tags Tags
    Thermoelectric
AI Thread Summary
Adding more junctions in thermoelectric systems can potentially increase electricity production, but this is contingent on reducing overall contact resistance. While more junctions can enhance amperage, they do not necessarily increase voltage output. The effectiveness of additional junctions is limited due to the already low contact resistance in current designs. Therefore, significant gains in thermoelectric efficiency are unlikely with the addition of junctions alone. Overall, careful consideration of contact resistance is crucial in thermoelectric module design.
matthewgill
Messages
15
Reaction score
0
Just a quick question:

It is the seebeck effect whereby a directly proportional voltage to the temperature dif is produced. I am wondering whether adding more junctions in that style would produce more electricity.

Would this...
http://img156.imageshack.us/img156/3140/54089643.jpg
produce 3 (three) times more electricity than this...
http://img519.imageshack.us/img519/148/30093508.jpg
?

Thank you.
 
Last edited by a moderator:
Physics news on Phys.org
how is that? are they viewable now?
 
Adding junctions will only increase the electricity produced if the overall contact resistance goes down. That will increase the amperage but not the voltage. Contact resistance is a significant consideration when designing and producing thermoelectric modules and is typically very, very low so there isn't much to be gained over present art.
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
View full post »

Similar threads

Astounding new discovery on Electrical Heat
Replies
7
Views
3K
Alternative electricity generation for aircraft
Replies
5
Views
2K
How Does Adding More Springs Affect Extension in Hooke's Law Experiments?
Replies
4
Views
9K
How can I enhance RLD circuits with an LED for period doubling?
Replies
6
Views
2K
Engineering Two easy circuit-analysis problems
Replies
1
Views
6K
Advanced iron oxide production questions
Replies
4
Views
2K
A In light of new evidence, what might be behind the Casimir Effect?
Replies
46
Views
4K
How Does Tokamak Plasma Heating Work and Can Reactive Power Improve Efficiency?
Replies
9
Views
3K
Inner Product Definitions Galore?
Replies
7
Views
2K
[Nuclear Rocket]Idea to increase Isp and thrust of nuclear rocket
Replies
5
Views
3K

Hot Threads

Recent Insights

Back
Top