Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

2.7 ENVIRONMENTAL ENGINEERING, Energy and fuels

Publication Details

Applied Energy 259

Abstract

Medium operating temperature hybrid solar-biomass TPV power plant design requires complex integration of multiple high temperature processes with low band-gap TPV cells. A 0.72 eV band-gap GaSb TPV cell has been used in thermophotovoltaic (TPV) systems operating at temperatures above 1400 °C. Low band-gap TPV cells, such as InGaAs (Eg = 0.55 eV) and InAs (Eg = 0.36 eV) could enable a TPV system to operate optimally at temperatures ≈1000 °C. To examine this, two hybrid solar-biomass TPV system configurations are studied using TRNSYS simulation that incorporates a new algorithm for TPV. It is found that in a high solar fraction CSP power plant, a TPV system could recover surplus thermal energy gained from solar energy at mid-days that would otherwise be unused. Keywords: Thermophotovoltaic; Spectral control; Absorber/Emitter; Hybrid STPV

DOI

https://doi.org/10.1016/j.apenergy.2019.114181

Funder

TU Dublin; Science Foundation Ireland

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