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THE FEUTEX TOOLKIT

Straight Fin with Adiabatic Tip

Estimate fin efficiency and heat transfer using a uniform cross section.

Thermal workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
Formulam=√(hP/kAc); η=tanh(mL)/(mL); Q=√(hPkAc)θb tanh(mL).
Sources and model references

Worked example

Inputs

Convection coefficient
10 W/(m²·K)
Wetted perimeter
0.04 m
Cross section area
0.0001 m²
Thermal conductivity
200 W/(m·K)
Fin length
0.05 m
Base minus ambient temperature
50 K

Expected results

Fin efficiency
0.9836600546
Heat transfer
0.9836600546 W

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter every input in the labeled units; use measured or independently specified properties.
  2. Check the stated model assumptions before calculating.
  3. Interpret the output as a model estimate and verify it independently for the intended application.

Try this example

{
  "h": 10,
  "perimeter": 0.04,
  "area": 0.0001,
  "k": 200,
  "length": 0.05,
  "delta": 50
}

Accuracy and scope

Uniform conductivity and convection, negligible tip loss, one-dimensional fin conduction. Educational engineering estimate only; not structural or safety certification, equipment selection, or operating recommendations.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.