THE CONVERSION OF SOLAR ENERGY BY MEANS OF FLUORESCENT COLLECTORS - CONSTRUCTION OF A PROTOTYPE COLLECTOR OF SEVERAL W POWER OUTPUT
The state of development of the fluorescent collector is now sufficiently advanced, that the construction of large area collectors has become possible. The aim of this project was to demonstrate that fluorescent collectors can already be meaningfully incorporated in certain special applications. A prototype collector with an area of 1 m**2 and a peak power output of 10 W was developed for this purpose and was tested for more than a year. Standard silicon solar cells, rather than specially optimized ones, were used, in order that the economic goals could also be attained. The highest total efficiency measured to date for a fluorescent collector with GaAs cells was 4 % (40 W/m**2). The long term measurements show on the one hand, that the stability of the collector had been improved sufficiently for this application, and on the other hand, that the fluorescent collector has a distinct advantage over conventional Si systems for low irradiation levels. The cause for this is the dependence of the solar cell efficiency on the intensity and spectral distribution of the sunlight. The concentration and selective absorption of the fluorescent collector result here in a clear advantage compared to Si solar cells.
Bibliographic Reference: EUR 9839 DE (1985) NF, 30 P., BFR 150, BLOW-UP COPY BFR 200, EUROFFICE, LUXEMBOURG, POB 1003
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Record Number: 1989124076500 / Last updated on: 1987-01-01
Available languages: de