Temperature variation within thermocouple in Seebeck mode

AI Thread Summary
The discussion centers on the challenges of modeling a radioisotope thermoelectric generator using Finite Element Analysis. The user has completed a model focused on conduction and radiation but is questioning the significance of incorporating thermoelectric effects due to a low heat gradient of approximately 5 K between the junctions. There is uncertainty about whether the added complexity of coupling temperatures within the device would yield meaningful results or if the thermoelectric effects would be negligible. Additionally, the user has reached out to an external expert for further insights. The conversation highlights the balance between model accuracy and complexity in thermoelectric applications.
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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