Biaxial-Type Concentrated Solar Tracking System with a Fresnel Lens for Solar-Thermal Applications
Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 80778, Taiwan
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Academic Editor: Alejandro Pérez-Rodríguez
Appl. Sci. 2016, 6(4), 115; https://doi.org/10.3390/app6040115
Received: 28 December 2015 / Revised: 8 April 2016 / Accepted: 11 April 2016 / Published: 20 April 2016
In this paper, an electromechanical, biaxial-type concentrated solar tracking system was designed for solar-thermal applications. In our tracking system, the sunlight was concentrated by the microstructure of Fresnel lens to the heating head of the Stirling engine and two solar cells were installed to provide the power for tracking system operation. In order to obtain the maximum sun power, the tracking system traces the sun with the altitude-azimuth biaxial tracing method and accurately maintains the sun’s radiation perpendicular to the plane of the heating head. The results indicated that the position of heating head is an important factor for power collection. If the sunlight can be concentrated to completely cover the heating head with small heat loss, we can obtain the maximum temperature of the heating head of the Stirling engine. Therefore, the temperature of heating head can be higher than 1000 °C in our experiment on a sunny day. Moreover, the results also revealed that the temperature decrease of the heating head is less than the power decrease of solar irradiation because of the latent heat of copper and the small heat loss from the heating head.
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MDPI and ACS Style
Cheng, T.C.; Yang, C.K.; Lin, I. Biaxial-Type Concentrated Solar Tracking System with a Fresnel Lens for Solar-Thermal Applications. Appl. Sci. 2016, 6, 115. https://doi.org/10.3390/app6040115
AMA Style
Cheng TC, Yang CK, Lin I. Biaxial-Type Concentrated Solar Tracking System with a Fresnel Lens for Solar-Thermal Applications. Applied Sciences. 2016; 6(4):115. https://doi.org/10.3390/app6040115
Chicago/Turabian StyleCheng, Tsung C.; Yang, Chao K.; Lin, I. 2016. "Biaxial-Type Concentrated Solar Tracking System with a Fresnel Lens for Solar-Thermal Applications" Appl. Sci. 6, no. 4: 115. https://doi.org/10.3390/app6040115
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