System Performance Projections for TPV Energy Conversion

Baldasaro, P.F.; Dashiell, MW; Oppenlander, JE; Vell, JL; Fourspring, Patrick M.; Rahner, K; Danielson, L. R.; Burger, Sven; Brown, Edward J.

doi:10.2172/837457

Cited by 2 publications

(1 citation statement)

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“…When all the cells were connected, the output power of the cell array often cannot reach the expected maximum value (defined as mismatch loss), and the output power utilization rate is also very low. [19,20] Therefore, optimizing the transport process of infrared light during energy conversion is very important to improve the irradiance uniformity of TPV arrays and the electrical output performance of the overall RTPV system. The uniformity of irradiance received by the cell array can be effectively improved by adding a reflective cavity between the heat source and the TPV cell array.…”

Section: Introductionmentioning

confidence: 99%

An Efficient Photon Utilization Radioisotope Thermophotovoltaic Based on Curled Reflectors

et al. 2023

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For radioisotope thermophotovoltaic (RTPV) to produce higher output power, it is often required that the irradiance incident on the thermophotovoltaic (TPV) cell array be more uniform. However, the irradiance received by each cell of the TPV array is relatively different under the conventional cell array surround structure of RTPV, resulting in a serious overall electrical output mismatch loss and a lower output power utilization rate. Herein, an RTPV with curled reflectors optimized by finite‐element method is proposed. It is shown in the simulation results that the irradiation uniformity of the cell array can reach 87.5%, the total output power reaches 88.12 W, which is 39.8% higher than that prior to optimization, and the mismatch loss is reduced by 69.2%. In addition, the impact of the reflectivity of reflectors is also targeted from the perspective of practical applications, and it can still produce higher output power than that of the conventional structure even at reflectivity as low as 70%. Ultimately, the RTPV prototype with reflectors is developed, and the electrical performance is tested to verify the effect of irradiance improvement. Herein, reflectors with positive gain for RTPV are proposed, which provides a new idea for the development of high‐efficiency power supplies.

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Section: Introductionmentioning

confidence: 99%

An Efficient Photon Utilization Radioisotope Thermophotovoltaic Based on Curled Reflectors

et al. 2023

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Thermophotovoltaic Array Optimization

SBurger¹,

Brown²,

Rahner³

et al. 2004

2nd International Energy Conversion Engineering Conference

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A systematic approach to thermophotovoltaic (TPV) array design and fabrication was used to optimize the performance of a 192-cell TPV array. The systematic approach began with cell selection criteria that ranked cells and then matched cell characteristics to maximize power output. Following cell selection, optimization continued with an array packaging design and fabrication techniques that introduced negligible electrical interconnect resistance and minimal parasitic losses while maintaining original cell electrical performance. This paper describes the cell selection and packaging aspects of array optimization as applied to fabrication of a 192-cell array.

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System Performance Projections for TPV Energy Conversion

Cited by 2 publications

References 0 publications

An Efficient Photon Utilization Radioisotope Thermophotovoltaic Based on Curled Reflectors

An Efficient Photon Utilization Radioisotope Thermophotovoltaic Based on Curled Reflectors

Thermophotovoltaic Array Optimization

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