Applications of TPV Generators

Bauer, Thomas

doi:10.1007/978-3-642-19965-3_8

Cited by 2 publications

(2 citation statements)

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“…Under these circumstances a constant temperature distribution on the emitter surface can be assumed [46]. Additionally, the performance degradation of a GaSb cell under non-uniform illumination due to temperature gradients on the emitter within a TPV system has been investigated [2]. In this study, the temperature of a blackbody emitter was assumed to vary from 1510 K to 1990 K. Results from this study estimated that the temperature gradients on the emitter caused a decrease in the PV cell efficiency of only 1.5% (which corresponded to a 4.4% relative decrease in efficiency).…”

Section: Methodsmentioning

confidence: 99%

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Ellipsoidal Optical Cavities for Enhanced Thermophotovoltaics

Talebzadeh

Pirvaram

O’Brien

2022

IEEE J. Photovoltaics

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Herein we present an optical cavity in the form of a prolate ellipsoid that can greatly enhance the performance of solar thermophotovoltaic (STPV) systems. The geometrical parameters of the cavity can be designed to control the degree of photon recycling, the temperature of the emitter within the STPV system, gap distance and effective view factor between the PV cell and the emitter, and to minimize the emission losses. Numerical analysis shows the ellipsoidal optical cavity can be designed to achieve an effective view factor of 88.7% between the emitter and PV cell within a STPV system. Results show an efficiency of 5.62% in a STPV system with a GaSb PV cell and a black-body emitter under solar radiation at a concentration factor of 350X. Further, assuming the surface of the ellipsoidal optical cavity is capable of reflecting 99% of the radiation incident onto its surface, efficiencies of 15.54% can be attained when the solar concentration factor is 1400X. These results are attained for STPV systems without using selective absorbers, emitters or filters. The ellipsoidal optical cavity can be integrated into the design of advanced TPV systems and bring them closer to the high theoretical efficiencies TPV systems are capable of.

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Section: Methodsmentioning

confidence: 99%

“…HERMOPHOTOVOLTAICS (TPV) is a versatile technology with many applications including uninterruptible power supplies, self-powered heating devices and industrial waste heat recovery [1], [2]. The primary components in a TPV system are the emitter and the photovoltaic (PV) cell.…”

Section: Introductionmentioning

confidence: 99%