Hundred-Watt Implantable TEG Module for Large-Scale Exhaust Gas Waste Heat Recovery

Zhien Gu, Shi He, Xiang Li, Peng Sun, Jiehua Wu (), Haoyang Hu, Qiang Zhang and Jun Jiang
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Zhien Gu: Zhejiang Zheneng Zhenhai Gas Cogeneration Co., Ltd., Ningbo 315208, China
Shi He: Zhejiang Zheneng Zhenhai Gas Cogeneration Co., Ltd., Ningbo 315208, China
Xiang Li: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Peng Sun: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Jiehua Wu: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Haoyang Hu: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Qiang Zhang: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Jun Jiang: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China

Energies, 2024, vol. 17, issue 3, 1-10

Abstract: In this study, we have designed and developed an implantable thermoelectric generator (TEG) module tailored for large-scale flue gas waste heat recovery. We also have established a test stand to simulate diverse operational conditions, and systematically examined the influence of different operating conditions, including flue gas temperature, flue gas velocity, and cooling water temperature, on the electrical performance of the TEG module. When the flue gas temperature is 139 °C, the flue gas flow rate is 3.4 m/s, and the cooling water temperature is 20 °C, the TEG module operates at its peak performance. It achieves an open-circuit voltage of 856.3 V and an output power of 150.58 W. Furthermore, the TEG module demonstrates a notable power generation capacity of 3.86 kW/m 3 and a waste heat recovery capacity of 135.85 kW/m 3 . The results prove the TEG module as an effective solution for large-scale flue gas waste heat recovery in industrial settings, contributing to sustainable energy practices. This study supports the application of thermoelectric power generation in the industrial sector, offering significant potential for advancements in energy efficiency.

Keywords: larger-scale flue gas; flue gas waste heat; thermoelectric generator; generating performance; engineering application (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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