Thermoelectric Question

  • #1

Main Question or Discussion Point

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 [Broken]
produce 3 (three) times more electricity than this...
http://img519.imageshack.us/img519/148/30093508.jpg [Broken]
?

Thank you.
 
Last edited by a moderator:

Answers and Replies

  • #2
russ_watters
Mentor
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I'm not seeing the attachments...
 
  • #3
how is that? are they viewable now?
 
  • #4
563
2
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.
 

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