Steady-state and transient heat transfer through fins of complex geometry

• Autorzy: Taler D. , Taler J.
• Języki publikacji: EN

Abstrakty

EN

Various methods for steady-state and transient analysis of temperature distribution and efficiency of continuous-plate fins are presented. For a constant heat transfer coefficient over the fin surface, the plate fin can be divided into imaginary rectangular or hexangular fins. At first approximate methods for determining the steady-state fin efficiency like the method of equivalent circular fin and the sector method are discussed. When the fin geometry is complex, thus transient temperature distribution and fin efficiency can be determined using numerical methods. A numerical method for transient analysis of fins with complex geometry is developed. Transient temperature distributions in continuous fins attached to oval tubes is computed using the finite volume - finite element methods. The developed method can be used in the transient analysis of compact heat exchangers to calculate correctly the heat flow rate transferred from the finned tubes to the fluid.

Słowa kluczowe

EN

fin of complex geometry; fin efficiency; finite volume method; finite element method

PL

geometria złożona; wydajność; metoda objętości skończonych; metoda elementów skończonych

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2014
• Tom: Vol. 35, no. 2
• Strony: 117--133
• Opis fizyczny: Bibliogr. 26 poz., il.

Twórcy

autor

Taler D.

• Cracow University of Technology, Institute of Thermal Engineering and Air Protection, Warszawska 24, 31-155 Kraków, Poland

autor

Taler J.

• Cracow University of Technology, Department of Thermal Power Engineering, Jana Pawła II 37, 31-864 Kraków, Poland

Bibliografia

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