Optimal Design of Wavelength Selective Thermal Emitter for Thermophotovoltaic Applications

被引：24
|
作者：
Ghanekar, Alok [1 ]
Sun, Mingdi [2 ]
Zhang, Zongqin [2 ]
Zheng, Yi [1 ]
机构：
[1] Univ Rhode Isl, Dept Mech Ind & Syst Engn, Kingston, RI 02881 USA
[2] CANATAL Environ Tech Co, Res & Dev Ctr, 88 Suyuan Ave, Nanjing 21102, Jiangsu, Peoples R China
来源：
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS | 2018年 / 10卷 / 01期
基金：
美国国家卫生研究院;
关键词：
HIGH-EFFICIENCY; RADIATION; SYSTEMS;
D O I：
10.1115/1.4036790
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
We theoretically and numerically demonstrate optimal design of wavelength selective thermal emitter using one-dimensional (1D) and two-dimensional (2D) metal-dielectric gratings for thermophotovoltaic (TPV) applications. Proposed design consists of tungsten (W) and silicon dioxide (SiO2) gratings which can withstand high temperatures. Radiative properties of 1D grating were calculated using a numerical method, while effective medium approximation was used for 2D gratings. Optimal designs were obtained such that output power is maximum for GaSb photovoltaic (PV) cell at emitter temperature of 1500K and radiated energy for longer wavelengths is limited to a low value. A constrained optimization was performed using genetic algorithm (GA) to arrive at optimal design.
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页数：4
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