Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
A technical note on application of internally finned tubes in solar parabolic trough absorber pipes
Year:2011
Research Areas
  • Engineering
Information
Abstract
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.
International
Si
JCR
Si
Title
Solar Energy
ISBN
0038-092X
Impact factor JCR
Impact info
Volume
85
Journal number
From page
609
To page
612
Month
SIN MES
Ranking
Participants
  • Autor: J. Muñoz (UPM)
  • Autor: Alberto Abanades Velasco (UPM)
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Instituto de Fusión Nuclear
  • Departamento: Ingeniería Energética y Fluidomecánica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)