Spectrally selective beam splitters designed to decouple quantum and thermal solar energy conversion in hybrid concentrating systems: Final report, Phase 1 and 2

Technical Report · Wed Jun 01 00:00:00 EDT 1988

OSTI ID:6971067

Osborn, D E

The technical feasibility and flexibility of developing elements that separate concentrated solar irradiation into specific spectral regions matched to specific photoquantum processes have been shown. These elements, spectrally selective beam splitters or filters, are designed to decouple quantum and thermal solar energy conversion in hybrid concentrating systems. Both interference filters and liquid absorption filters were investigated for use as spectrally selective beam splitters. Spectral selectivity is investigated for a variety of quantum systems with various spectral windows utilizing interference and absorption filters designed. Detailed analysis of one typical quantum system is provided consisting of a model of the silicon cell photovoltaic/photothermal hybrid system using spectral selectivity. The performance benefits of this approach are shown. Interference filters show the greatest flexibility and ability to match specific spectral windows. Liquid absorption filters appear to be a lower cost option, when an appropriate spectrally selective solution that can be used as a heat transfer fluid is available. 18 refs., 88 figs., 9 tabs.

• Research Organization: Solar Energy Research Inst., Golden, CO (USA); Sandia National Labs., Albuquerque, NM (USA); Arizona Univ., Tucson (USA). Solar and Energy Research Facility
• DOE Contract Number: AC04-76DP00789; AC02-83CH10093
• OSTI ID: 6971067
• Report Number(s): SAND-8016916; ON: DE88016916
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR ENERGY CONVERSION
RESEARCH PROGRAMS
SOLAR THERMAL CONVERSION
BEAM SPLITTING
DESIGN
DETOXIFICATION
FILTERS
HEAT TRANSFER
HELIOSTATS
LASERS
PERFORMANCE
PROGRESS REPORT
SPECTRAL RESPONSE
CONVERSION
DOCUMENT TYPES
ENERGY CONVERSION
ENERGY TRANSFER
EQUIPMENT
SOLAR EQUIPMENT
140500* - Solar Energy Conversion