Can Thermocouple Junctions Cool Down When Supplied with Current?

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Discussion Overview

The discussion revolves around the possibility of thermocouple junctions cooling down when supplied with current, exploring the underlying principles and potential applications, including the Peltier effect and its use in climate control technologies.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants propose that supplying current to a thermocouple junction could lead to cooling, suggesting that the junction might feel cold to the touch.
  • Another participant mentions the Peltier effect as a mechanism that supports the idea of thermoelectric cooling.
  • A participant references a climate control jacket developed by a student, which reportedly utilizes thermoelectric principles, but seeks more technical details on its operation.
  • One post provides a link to a Wikipedia article on thermoelectric cooling, indicating that such technology is commercially available in products like combination refrigerators/heaters.

Areas of Agreement / Disagreement

Participants express varying levels of agreement on the principles of thermoelectric cooling, with some supporting the idea based on the Peltier effect, while others seek clarification and additional technical information. The discussion remains unresolved regarding the specific mechanisms and applications.

Contextual Notes

Participants mention various assumptions about the technology, such as the use of semiconductors and specific temperature ranges, but do not provide detailed explanations or resolve the underlying technical complexities.

Who May Find This Useful

Individuals interested in thermoelectric cooling, climate control technologies, and the Peltier effect may find this discussion relevant.

harsh077
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is it possible that instead of heating the junction ... of thermocouple...
we supply the current n the juntion cools down...
which when touched felt cold...
according to the supply of current...??

if not then is there any method of doing that
 
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harsh077 said:
is it possible that instead of heating the junction ... of thermocouple...
we supply the current n the juntion cools down...
which when touched felt cold...
according to the supply of current...??

if not then is there any method of doing that

Try googling the "Peltier effect"
 
yes sir,
u r right its proved by peteir effect only... by mit student
n he made a climate control jacket by using thermocouple...

i have searched so much but not able to get technical details ...
how is that made possible..
they say they r using a lap top sized battery
they beark hydrogen ion..
the temp inside the jacket will be maintained from 18 to 40 degree
when the atmosphereric temp. is from -30 to 50 degree...
i think they use semi conductor too...
as per as my info...

thanks for replying...

please do replyy...
 
thank u sir..
i will tell u the ...
out come...
 

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