Can Adding More Junctions Increase Thermoelectricity Production?

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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
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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.
 
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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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