Temperature variation within thermocouple in Seebeck mode

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SUMMARY

The discussion centers on the creation of a Finite Element model for a radioisotope thermoelectric generator, focusing on the impact of temperature gradients within the thermoelectric device. The current heat gradient is approximately 5 K between the hot and cold junctions. Participants debate whether incorporating thermoelectric effects into the model is beneficial, despite the added complexity, or if the effects are negligible. The conversation also includes a reference to John Shanahan from www.pyrosales.com.au for further insights.

PREREQUISITES
  • Finite Element Analysis (FEA) principles
  • Thermoelectric effects and their implications
  • Understanding of heat transfer mechanisms (conduction and radiation)
  • Basic knowledge of thermoelectric generators
NEXT STEPS
  • Research the impact of thermoelectric effects on performance in thermoelectric devices
  • Explore advanced modeling techniques in Finite Element Analysis
  • Study the principles of thermoelectric materials and their efficiency
  • Investigate methods to enhance temperature gradients in thermoelectric systems
USEFUL FOR

Engineers, researchers, and students involved in thermoelectric technology, thermal management, and Finite Element modeling will benefit from this discussion.

elt93
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Hi guys,
I posted a thread a while ago asking for advices to create a Finite Element model of a radioisotope thermoelectric generator. I've basically finished this model mainly using conduction and radiation at the boundaries. I am wondering something though: currently my heat gradient is very low between the hot and cold junction ~5 K. Would it be worth coupling the temperatures inside the thermoelectric device with the thermoelectric effects knowing that it will complicate a lot the model or will the effects be really small and not worth it ?
Thank you for your help!
 
elt93 said:
Hi guys,
I posted a thread a while ago asking for advices to create a Finite Element model of a radioisotope thermoelectric generator. I've basically finished this model mainly using conduction and radiation at the boundaries. I am wondering something though: currently my heat gradient is very low between the hot and cold junction ~5 K. Would it be worth coupling the temperatures inside the thermoelectric device with the thermoelectric effects knowing that it will complicate a lot the model or will the effects be really small and not worth it ?
Thank you for your help!

I have notified the owner of www.pyrosales.com.au about your question and hopefully I will be able to provide you with some important info/feedback.The owner is John Shanahan.

Hopefully this is OK with the website and Greg.
 

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