A solar stove using a giant Fresnel lens has been developed in the Energy and Fuel Cell Laboratory at the University of Arizona. Solar tracking is required to control the Fresnel lens to maintain a stationary focal point on the heat transfer surface of the solar stove. A two-axis passive control system for solar tracking is adopted. Characteristics of the optical system are analyzed in order to find a reasonable tracking and adjustment frequency and overall system control accuracy. Defocus of the lens due to the angular offset (related to tracking resolution) of the lens’ axis versus the sunray and the change of the shape of the focal point on a static plate is calculated. The results of the analysis are used in the design of the control algorithm which has been implemented in the control system of the prototype solar stove. The proposed tracking scheme is expected to improve heat collection, thermal protection and thereby reduction of heat loss in the solar stove.
Skip Nav Destination
ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology
July 23–26, 2012
San Diego, California, USA
Conference Sponsors:
- Advanced Energy Systems Division
- Solar Energy Division
ISBN:
978-0-7918-4481-6
PROCEEDINGS PAPER
The Effect of Solar Tracking Resolution to the Defocus of a Giant Fresnel Lens for a Solar Stove
Matthew Mokler,
Matthew Mokler
University of Arizona, Tucson, AZ
Search for other works by this author on:
Ricardo G. Sanfelice
Ricardo G. Sanfelice
University of Arizona, Tucson, AZ
Search for other works by this author on:
Peter Kane
University of Arizona, Tucson, AZ
Matthew Mokler
University of Arizona, Tucson, AZ
Peiwen Li
University of Arizona, Tucson, AZ
Ricardo G. Sanfelice
University of Arizona, Tucson, AZ
Paper No:
ES2012-91097, pp. 327-332; 6 pages
Published Online:
July 23, 2013
Citation
Kane, P, Mokler, M, Li, P, & Sanfelice, RG. "The Effect of Solar Tracking Resolution to the Defocus of a Giant Fresnel Lens for a Solar Stove." Proceedings of the ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2012 6th International Conference on Energy Sustainability, Parts A and B. San Diego, California, USA. July 23–26, 2012. pp. 327-332. ASME. https://doi.org/10.1115/ES2012-91097
Download citation file:
6
Views
Related Proceedings Papers
Related Articles
Technical and Economic Performance Analysis of Utilization of Solar Energy in Indoor Swimming Pools, An Application
J. Sol. Energy Eng (February,2012)
Thermodynamic Analysis of Solar Low-Temperature Differential Stirling Engine Considering Imperfect Regeneration and Thermal Losses
J. Sol. Energy Eng (October,2020)
On the Thermal Performance Characteristics of Three-Dimensional Multichip Modules
J. Electron. Packag (September,2004)
Related Chapters
Experimental Investigation of Heat Transfer and Flow Characteristics in a Solar Chimney Prototype
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
Survey of Access Control on Service Computing Based on Policy
International Conference on Electronics, Information and Communication Engineering (EICE 2012)
Smart Semi-Active Control of Floor-Isolated Structures
Intelligent Engineering Systems Through Artificial Neural Networks, Volume 17