Tube banks heat transfer enhancement using conical fins

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Resumen

In this work the heat transfer and pressure drop experimental results obtained in a two step finned tube bank with conical fins are presented. The tube bank had an equilateral triangle array composed of nine finned tubes with conical fins inclined 45 degrees in respect with the tube axis. The heat exchange external area of a single tube is approximately 0.07 m2. All necessary thermal parameters, inlet/outlet temperatures, mass flows, for the heat balance in the tube bank were determined for different air velocities, Re = 3400 - 18400, and one constant thermal charge provided by a hot water flow with a temperature of 80 °C. As a result, the correlations for the heat transfer and pressure drop calculation were obtained. The experimental results were compared against the analytical results for a tube bank with annular fins with the same heat exchange area. It was found that the proposed tube bank using finned tubes with conical fins shows an increment of heat transfer up to 58%.

Idioma originalInglés
Título de la publicación alojadaASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
Páginas1745-1750
Número de páginas6
EdiciónPARTS A, B AND C
DOI
EstadoPublicada - 2010
EventoASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels - Montreal, QC, Canadá
Duración: 1 ago. 20105 ago. 2010

Serie de la publicación

NombreAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
NúmeroPARTS A, B AND C
Volumen1
ISSN (versión impresa)0888-8116

Conferencia

ConferenciaASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
País/TerritorioCanadá
CiudadMontreal, QC
Período1/08/105/08/10

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