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Numerical simulation of a novel narrow-band metamaterial emitter for high-efficiency thermophotovoltaic power generation system
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Jianrong YANG1, Haojin WU2, Zhonghua ZHUANG1, Biao ZHANG2, Jiyu YUAN1, Shiquan SHAN2, Zhijun ZHOU2
Thermal Power Generation | 2023, 52(10) : 71 - 78
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Thermal Power Generation | 2023, 52(10): 71-78
• Thermal energy science research •
Numerical simulation of a novel narrow-band metamaterial emitter for high-efficiency thermophotovoltaic power generation system
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Jianrong YANG1, Haojin WU2, Zhonghua ZHUANG1, Biao ZHANG2, Jiyu YUAN1, Shiquan SHAN2, Zhijun ZHOU2
Affiliations
  • 1.Ningxia Shenyao Science and Technology Co., Ltd., Yinchuan 750011, China
  • 2.College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
Published: 2023-10-25 doi: 10.19666/j.rlfd.202305371
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The Shockley-Queisser (SQ) limit sets an upper limit on the efficiency of conventional semiconductor photovoltaic devices. A thermophotovoltaic system (consisting of a heat source, a spectrally selective emitter and low bandgap photovoltaic cell) can work as an alternative to break this theoretical efficiency limit. To further improve the power generation efficiency of thermophotovoltaic (TPV) systems, an emitter with a multilayer cross structure based on metamaterials was designed in this work. Through optimization of its geometric size, the emitter demonstrates an excellent narrow-band emission spectrum. This effectively reduces the loss of low-energy photons below the bandgap of PV cells and avoids the absorption of high-energy photons that exacerbate lattice vibrations to cause thermal losses. Its application to TPV systems enables a perfect match with In0.69Ga0.31As cells with a bandgap of 0.6 eV. Detailed theoretical calculations of this TPV system show that the power generation efficiency can exceed the Shockley-Queisser (SQ) limit (41%) at 1 117 ℃, and will be further improved as the emitter temperature increases. When the temperature reaches 2 000 K, the efficiency is as high as 46.75%. Additionally, the narrowband emitter shows good angular insensitivity in the range of 0~60 degrees.

thermophotovoltaic  /  narrow-band emitter  /  metamaterial  /  numerical simulation  /  efficiency analysis
Jianrong YANG, Haojin WU, Zhonghua ZHUANG, Biao ZHANG, Jiyu YUAN, Shiquan SHAN, Zhijun ZHOU. Numerical simulation of a novel narrow-band metamaterial emitter for high-efficiency thermophotovoltaic power generation system[J]. Thermal Power Generation, 2023 , 52 (10) : 71 -78 . DOI: 10.19666/j.rlfd.202305371
Funding
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  • Ningxia Provincial Key Research and Development Program(2017BY049)
  • Ningxia Provincial Key Research and Development Program(2018BCE01004)
Appendix
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Year 2023 volume 52 Issue 10
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170
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Article Info
doi: 10.19666/j.rlfd.202305371
  • Online Date：2026-01-26
  • Published：2023-10-25
Article Data
Affiliations
History
  • Revised：2023-05-24
Funding
Ningxia Provincial Key Research and Development Program(2017BY049)
Ningxia Provincial Key Research and Development Program(2018BCE01004)
Affiliations
    1.Ningxia Shenyao Science and Technology Co., Ltd., Yinchuan 750011, China
    2.College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202305371
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