Memorias de investigación
Artículos en revistas:
A technical note on application of internally finned tubes in solar parabolic trough absorber pipes
Año:2011
Áreas de investigación
  • Ingenierías
Datos
Descripción
The heterogeneous incoming heat flux in solar parabolic trough absorber tubes generates huge temperature difference in each pipe section. Helical internal fins can reduce this effect, homogenising the temperature profile and reducing thermal stress with the drawback of increasing pressure drop. Another effect is the decreasing of the outer surface temperature and thermal losses, improving the thermal efficiency of the collector. The application of internal finned tubes for the design of parabolic trough collectors is analysed with computational fluid dynamics tools. Our numerical approach has been qualified with the computational estimation of reported experimental data regarding phenomena involved in finned tube applications and solar irradiation of parabolic trough collector. The application of finned tubes to the design of parabolic trough collectors must take into account issues as the pressure losses, thermal losses and thermo-mechanical stress, and thermal fatigue. Our analysis shows an improvement potential in parabolic trough solar plants efficiency by the application of internal finned tubes.
Internacional
Si
JCR del ISI
Si
Título de la revista
Solar Energy
ISSN
0038-092X
Factor de impacto JCR
Información de impacto
Volumen
85
DOI
Número de revista
Desde la página
609
Hasta la página
612
Mes
SIN MES
Ranking
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Instituto de Fusión Nuclear
  • Departamento: Ingeniería Energética y Fluidomecánica