Ansys - heat transfer within pipes and with surroundings

AI Thread Summary
The discussion focuses on analyzing heat transfer within pipes and its impact on the surrounding atmosphere, particularly for a thesis in architecture. The user seeks guidance on the appropriate ANSYS analysis for studying heat transfer between two pipes with opposing airflow and varying temperatures, while maintaining the same pressure. Recommendations include starting with a simplified model, such as an annulus, to gain initial insights into heat transfer dynamics. For more detailed simulations, using ANSYS Fluent's conjugate heat transfer model with coupled boundary conditions is advised. This approach allows for a comprehensive analysis of the geometry and flow conditions.
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ansys -- heat transfer within pipes and with surroundings

hello ,

am doing my master in architecture n currently in my thesis stage and the thesis is about heat transfer within pipes and their influence on the surrounding atmosphere.

i wish to know which is the right kind of analysis in ansys to study the effect of heat transfer between two pipes which has air flow in opposite direction and of varied temperature , but he pressure is same in both cases .

please do refer the image for more explanation.thanks in advance
 

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first study a simplified case with an analytical solution, e.g. by using the book of Lienhard:
http://web.mit.edu/lienhard/www/ahtt.html
You need to simplify your coil by an annulus or something. This will already give you a rough idea of the heat transfer in this simple counterflow heat exchanger.

In ansys (fluent?), you can use the conjugate heat transfer model with coupled boundary conditions between the coil/pipe and the air to simulate your geometry in more detail. You can use the known pressure as the inlet boundary condition for the flow.
 
thank you.
 
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