Comparison Study of Two Different Sun-Tracking Methods in Optical Efficiency of Heliostat Field | Zendy

KokKeong Chong | Zendy; MingHui Tan | Zendy

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Comparison Study of Two Different Sun-Tracking Methods in Optical Efficiency of Heliostat Field

Author(s) -

KokKeong Chong,

MingHui Tan

Publication year - 2012

Publication title -

international journal of photoenergy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.426

H-Index - 51

eISSN - 1687-529X

pISSN - 1110-662X

DOI - 10.1155/2012/908364

Subject(s) - heliostat , azimuth , tracking (education) , elevation (ballistics) , ray tracing (physics) , computer science , tracing , field (mathematics) , range (aeronautics) , optics , remote sensing , physics , solar energy , aerospace engineering , engineering , geology , mathematics , psychology , pedagogy , astronomy , pure mathematics , electrical engineering , operating system

There are two sun-tracking methods widely used for the heliostat, which are conventional Azimuth-Elevation and revolutionary Spinning-Elevation methods. Following the previous study to compare the range of motion, a comparison study in optical efficiency of heliostat field for the two methods is further explored in this paper. A special algorithm using ray-tracing technique has also been developed to simulate the optical efficiency of heliostat field for both sun-tracking methods in different latitudes. With the new algorithm, comprehensive analysis to compare the optical efficiency of individual heliostat and the overall heliostat field for the two sun-tracking methods has been carried out

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