1. Impact of non-ideal confinement on photon recycling effects in a confined solar-thermophotovoltaic system.
- Author
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Shimizu, Makoto, Furuhashi, Tomoya, Liu, Zhen, and Yugami, Hiroo
- Subjects
THERMOPHOTOVOLTAIC cells ,PHOTONS ,HEAT radiation & absorption ,ENERGY dissipation ,POWER density - Abstract
A possible way to realize high-efficiency solar-thermophotovoltaics (TPV) systems is to use TPV cells with high out-of-band reflectance to take advantage of the high-efficiency photon recycling effect. However, to take full advantage of this effect, a system that confine the thermal radiation from the emitter and effectively transports it to the TPV cell is required at the same time. In this study, the effect of non-ideal confinement performance is analytically demonstrated. The results suggest that a 15% energy loss in the confinement system may result in a system efficiency loss of about 10%, especially in the low input power density region. The superiority of the confined cuboid absorber/emitter system compared to the open type of the planar system is also analytically demonstrated. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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