Equation for heat transfer rate

AI Thread Summary
The discussion focuses on measuring the thermal conductivity of woody pellets using the Peltier effect, referencing the equation Q"=kA(Δt/Δl). The user seeks guidance on calculating the heat transfer rate (Q") with available parameters, including voltage and current from a power supply to determine resistance (R). They propose using the equation Q"=ΔT/R but are unsure of its validity. The user is awaiting confirmation from their university supervisor regarding their assumptions. Overall, the conversation centers on clarifying the calculation method for thermal conductivity in their experimental setup.
icecool8
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Hi,

I am trying to create an apparatus to measure the thermal conductivity of woody pellet based on peltier effect. the fundamental equation for thermal conductivity is Q"=kA(Δt/Δl), where k is thermal conductivity. A is the area of pellet, Δt is measured by using thermocouple and peltier plate and length of the pellet is known. However, I am not too sure how to calculate the Q" based on the information that I have, Could anyone give me some tips to find the Q" by using other parameters? The one I was think of is using voltage & current from the power supply to calculate the resistance (R) through the pellet , and Q" =ΔT/R, Can I use this equation? Thanks
 
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Greg Bernhardt said:
I'm sorry you are not generating any responses at the moment. Is there any additional information you can share with us? Any new findings?

I am still awaiting for the reply from my supervisor from uni to verify my assumption, but at this stage, I don't have answer...
 
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