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A Transmittance-optimized, Point-focus Fresnel Lens Solar ConcentratorThe development of a point-focus Fresnel lens solar concentrator for high-temperature solar thermal energy system applications is discussed. The concentrator utilizes a transmittance-optimized, short-focal-length, dome-shaped refractive Fresnel lens as the optical element. This concentrator combines both good optical performance and a large tolerance for manufacturing, deflection, and tracking errors. The conceptual design of an 11-meter diameter concentrator which should provide an overall collector efficiency of about 70% at an 815 C (1500 F) receiver operating temperature and a 1500X geometric concentration ratio (lens aperture area/receiver aperture area) was completed. Results of optical and thermal analyses of the collector, a discussion of manufacturing methods for making the large lens, and an update on the current status and future plans of the development program are included.
Document ID
19840020159
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Oneill, M. J. (ENTECH Corp. Dallas-Fort Worth Airport, TX, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1984
Publication Information
Publication: JPL Proc. of the 5th Parabolic Dish Solar Thermal Power Program
Subject Category
Energy Production And Conversion
Accession Number
84N28228
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19840020155Collected WorksProceedings of the Fifth Parabolic Dish Solar Thermal Power Program
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