Artículo
On-sun operation of a 150 kWth pilot solar receiver using dense particle suspension as heat transfer fluid
Perez Lopez, I.; Benoit, H.; Gauthier, D.; Sans, J. L.; Guillot, E.; Mazza, German Delfor
; Flamant, G.
Fecha de publicación:
11/2016
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Solar Energy
ISSN:
0038-092X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Previous studies proved the Dense Particle Suspension (DPS) - also called Upward Bubbling Fluidized Bed (UBFB) - could be used as Heat Transfer Fluid (HTF) in a single-tube solar receiver. This article describes the experiments conducted on a 16-tube, 150 kWth solar receiver using a dense gas-particle suspension (around 30% solid volume fraction) flowing upward as HTF. The receiver was part of a whole pilot setup that allowed the continuous closed-loop circulation of the SiC particles used as HTF. One hundred hours of on-sun tests were performed at the CNRS 1 MW solar furnace in Odeillo. The pilot was tested under various ranges of operating parameters: solid mass flow rate (660–1760 kg/h), input solar power (60–142 kW), and particle temperature before entering the solar receiver (40–180 °C). Steady states were reached during the experiments, with continuous circulation and constant particle temperatures. For the hottest case, the mean particle temperature reached 430 °C in the collector fluidized bed, at the receiver outlet, and it went up to 700 °C at the outlet of the hottest tube, during steady operation. A temperature difference between tubes is observed that is mainly due to the incident solar flux distribution heterogeneity. The thermal efficiency of the receiver, defined as the ratio of power transmitted to the DPS in the form of heat over solar power entering the receiver cavity, was calculated in the range 50–90% for all the experimental cases. The system transient responses to variations of the solar irradiation and of the solid mass flow rate are also reported.
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Articulos(PROBIEN)
Articulos de INST. DE INVESTIGACION Y DES. EN ING. DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Articulos de INST. DE INVESTIGACION Y DES. EN ING. DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Citación
Perez Lopez, I.; Benoit, H.; Gauthier, D.; Sans, J. L.; Guillot, E.; et al.; On-sun operation of a 150 kWth pilot solar receiver using dense particle suspension as heat transfer fluid; Pergamon-Elsevier Science Ltd; Solar Energy; 137; 11-2016; 463-476
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