Research on Concentrated Solar Thermal Power Efficiency Based on Solar Elevation

Authors

  • Xiaomo Wang

DOI:

https://doi.org/10.54097/qaw6r523

Keywords:

Solar elevation, Heliostat efficiency, Optical modeling, Solar thermal power.

Abstract

This paper explores the impact of solar elevation on the reflective efficiency of heliostats in solar thermal power systems. By assuming heliostats as ideal mirrors and using detailed mathematical models, it calculates the cosine efficiency, shadow obstruction, and truncation efficiencies across different months. The study reveals how variations in solar elevation angles throughout the year affect the optimal tilt of heliostats, significantly impacting their efficiency. It also addresses the mutual shading and shadows cast by the absorber tower, proposing a model to estimate the obstructed area when heliostats are positioned vertically. The results highlight the necessity for precise positioning of heliostats to maximize solar capture and minimize losses, providing crucial insights for optimizing the layout of solar heliostat fields to enhance overall energy production and field efficiency. This research underscores the importance of strategic planning in the design of solar thermal power systems to adapt to seasonal changes in solar elevation.

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References

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Published

28-07-2024

How to Cite

Wang, X. (2024). Research on Concentrated Solar Thermal Power Efficiency Based on Solar Elevation. Highlights in Science, Engineering and Technology, 110, 132-138. https://doi.org/10.54097/qaw6r523