Heat-Mirror Spectral Profile Optimization for TSC Hybrid Solar Conversion

D E Soule; S E Wood

doi:10.1117/12.938325

24 September 1986 Heat-Mirror Spectral Profile Optimization for TSC Hybrid Solar Conversion

D E Soule, S E Wood

Proceedings Volume 0653, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion V; (1986) https://doi.org/10.1117/12.938325
Event: 1986 International Symposium/Innsbruck, 1986, Innsbruck, Austria

Abstract

The efficiencies for total solar cogeneration (TSC) can be optimized by tailoring the transparent heat-mirror (HM) beam splitter spectral profile shape. The entire output is cogenerated by photovoltaic/photothermal conversions into three energy forms: electricity (PV) 18V d.c./module, high-temperature heat (HT) 400°C, and low-temperature heat (LT) 70°C. The emphasis is to maximize the high-quality energy sum PV + HT, while maintaining PV at a high level. A generalized 5-parameter double Fermi model for the HM spectral profile is investigated allowing for a wide parametric range and profile asymmetry. The projected optimized TSC conversion efficiencies are: PV = 14.3%, HT = 43.5%, and LT = 42.2% with a high-quality energy sum of PV + HT = 57.8%. The approach to this optimum HM spectral profile by experimental HM films such as ITO are discussed.

Citation Download Citation

D E Soule and S E Wood "Heat-Mirror Spectral Profile Optimization for TSC Hybrid Solar Conversion", Proc. SPIE 0653, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion V, (24 September 1986); https://doi.org/10.1117/12.938325

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