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Steady Heat Conduction2

This document discusses critical radius of insulation and heat transfer through fins. It introduces critical radius as the radius where insulation is no longer effective. It then covers general solutions and boundary conditions for fins, including types of fins with different tip conditions like insulated, convection, or infinite length. It discusses fin efficiency and effectiveness, and provides equations for analyzing fins with uniform cross-sections. The document aims to explain heat transfer fundamentals and how to model and analyze fins of different configurations.

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Madhurima Bhandari
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35 views24 pages

Steady Heat Conduction2

This document discusses critical radius of insulation and heat transfer through fins. It introduces critical radius as the radius where insulation is no longer effective. It then covers general solutions and boundary conditions for fins, including types of fins with different tip conditions like insulated, convection, or infinite length. It discusses fin efficiency and effectiveness, and provides equations for analyzing fins with uniform cross-sections. The document aims to explain heat transfer fundamentals and how to model and analyze fins of different configurations.

Uploaded by

Madhurima Bhandari
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Critical Radius of Insulation

What is critical radius?

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Fins
Introduction

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General Solution and
Boundary Conditions of Fins

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Infinitely Long Fin (Tfin tip = T∞)

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Insulated Tip

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Convection from Tip

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Fin Efficiency

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Fin Effectiveness

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Reference
 Book- Heat Transfer- A Practical Approach
by Yunus Cengel

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Appendix

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Second derivative of Rtotal > 0, so Rtotal has minimum value. At the end heat transfer has
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Fin Equation

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Fins with Uniform Cross Section

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