Ansys - heat transfer within pipes and with surroundings

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SUMMARY

The discussion focuses on analyzing heat transfer within pipes using ANSYS, specifically for a thesis in architecture. The recommended approach involves starting with a simplified case using the analytical solutions from Lienhard's book. For detailed simulations, the use of ANSYS Fluent's conjugate heat transfer model with coupled boundary conditions is advised to study the interaction between the pipes and the surrounding air, which flows in opposite directions at varying temperatures but with the same pressure.

PREREQUISITES
  • Understanding of heat transfer principles, particularly in fluid dynamics.
  • Familiarity with ANSYS Fluent software for computational fluid dynamics simulations.
  • Knowledge of conjugate heat transfer modeling techniques.
  • Basic grasp of boundary conditions in thermal analysis.
NEXT STEPS
  • Study the analytical solutions presented in Lienhard's "A Heat Transfer Textbook."
  • Learn how to set up a conjugate heat transfer model in ANSYS Fluent.
  • Research counterflow heat exchanger designs and their thermal performance.
  • Explore the implementation of coupled boundary conditions in thermal simulations.
USEFUL FOR

This discussion is beneficial for architecture students, thermal engineers, and researchers focusing on heat transfer analysis in piping systems and their environmental interactions.

g.kailash
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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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