One-Dimensional Radial Fin by Frobenius Method Versus Two-Dimensional Straight Radial Fin

Research Area: Volume 8,Issue 4,July 2019 Year: 2019
Type of Publication: Article Keywords: Extended Surfaces, Compact Heat Exchangers, Modified Power Series, Frobenius
  • Elcio Nogueira
Journal: IJEIR Volume: 8
Number: 4 Pages: 154-165
Month: July
ISSN: 2277-5668
Fins or extended surfaces are extensively used in engineering applications to increase the efficiency of heat transfer of surfaces. Recent applications in compact heat exchangers increase interest in easy and applicable models for fin systems. A generalized one-dimensional radial fin model has been developed, where the modified power series expansion, the "Frobenius" method, is applied to a specific geometry. The comparison between two models, one-dimensional and two-dimensional, was presented to determine the thermal characteristics in a simple fin system. The one-dimensional model is suitable for compact fin systems, where the ratio is relatively low (K ≤ 6) and the Biot number is not very high (Bi

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