A radiometric method has been developed, suitable for both total power and flux density profile measurement of concentrated solar radiation. The high-flux density radiation is collected by a first optical cavity, integrated, and driven to a second optical cavity, where, attenuated, it is measured by a conventional radiometer operating under a stationary irradiation regime. The attenuation factor is regulated by properly selecting the aperture areas in the two cavities. The radiometer has been calibrated by a pulsed solar simulator at concentration levels of hundreds of suns. An optical model and a ray-tracing study have also been developed and validated, by which the potentialities of the radiometer have been largely explored.
Titolo: | Double-cavity radiometer for high-flux density solar radiation measurements |
Autori: | |
Data di pubblicazione: | 1-apr-2007 |
Handle: | http://hdl.handle.net/20.500.12079/103 |
Appare nelle tipologie: | 1.1 Articolo in rivista |