DOI:
https://doi.org/10.14483/22484728.18415Publicado:
2019-03-13Número:
Vol. 2 Núm. 1 (2019): Edición especialSección:
Visión de CasoThermosyphon effect in parabolic trough collector systems
Efecto termosifón en sistemas con colectores cilíndrico parabólicos
Palabras clave:
Colector cilíndricoparabólico, Termosifón, Fluido de transferencia de calor, Convección natural, Energía solar, Simulación de flujo (es).Palabras clave:
Parabolic trough collector, Thermosyfon, Heat transfer fluid, Natural convection, Solar energy, Flow simulation (en).Descargas
Resumen (en)
Thermosyphon effect is a natural convection phenomenon that gives a fluid the possibility to circulate inside a closed loop without any external pump sources. Numerical and simulation analysis are driven to check the behavior of thermosyphon effect in different heat transfer fluids, using parabolic trough collectors as the heating section of the system. Also, convection and radiation losses are considered. Simulations show variations in fluids density caused by different temperature and specific heat values, altering the velocity of the fluid inside the system with the same initial conditions.
Resumen (es)
El efecto termosifón es un fenómeno de convección natural que le da a un fluido la posibilidad de circular dentro de un circuito cerrado sin ninguna fuente de bomba externa. En el presente artículo de investigación se realiza el análisis numérico y de simulación para verificar el comportamiento del efecto termosifón en diferentes fluidos de transferencia de calor, utilizando colectores cilindroparabólicos como sección de calentamiento del sistema. Además, se consideran las pérdidas por convección y radiación. Se obtiene que las simulaciones muestran variaciones en la densidad de los fluidos causadas por diferentes temperaturas y valores de calor específicos, alterando la velocidad del fluido dentro del sistema bajo las mismas condiciones iniciales.
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