On the optical performance of a spherical stationary reflector/tracking absorber solar collector
The effect of specific design characteristics of the SRTA collector are discussed, such as the absorber diameter, the absorber length and the optical error from the tracking mechanism. It is found that the reduction of the absorber’s length by 29.6% leads to the reduction of the optical efficiency b...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-01-01
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| Series: | International Journal of Sustainable Energy |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/14786451.2021.1887188 |
| Summary: | The effect of specific design characteristics of the SRTA collector are discussed, such as the absorber diameter, the absorber length and the optical error from the tracking mechanism. It is found that the reduction of the absorber’s length by 29.6% leads to the reduction of the optical efficiency by about 13.7%. Increasing the absorber’s diameter is found to increase the optical efficiency, but only for diameters up to 0.05 m; further increase is found to have a negligible effect on the optical efficiency. The geometry of the studied collector is found to retain its high optical efficiency for optical errors up to 0.2o, but for higher optical errors lower efficiency is observed. This study shows that the SRTA solar concentrator can operate efficiently under a wide range of conditions and provides an insight for the design engineers of concentrated solar collectors. |
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| ISSN: | 1478-6451 1478-646X |