Acoustic Optimization of Automotive Exhaust Heat Thermoelectric Generator
Acoustic Optimization of Automotive Exhaust Heat Thermoelectric Generator
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DOI：
10.1007/s11664-012-2022-9
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发表时间：
2012-04
影响因子：
2.1
通讯作者：
C. Su;B. Ye;X. Guo;P. Hui
中科院分区：
文献类型：
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作者：
C. Su;B. Ye;X. Guo;P. Hui
随着热电发电机（teg）效率的提高，汽车热电废气热回收的潜力不断增加。本研究分析了基于废气的teg的声衰减性能。从传输损失和声插入损失两方面讨论了两种不同热设计的燃气热交换器的声学特性。在一台高性能生产发动机上进行了GT-Power仿真和台架测试。结果表明，该方法可以确定并优化teg的声衰减。此外，还测试了将基于排气的teg和发动机消声器集成到排气管道中的可行性，这有助于减少空间并提高车辆的集成度。
The potential for thermoelectric exhaust heat recovery in vehicles has been increasing with recent advances in the efficiency of thermoelectric generators (TEGs). This study analyzes the acoustic attenuation performance of exhaust-based TEGs. The acoustic characteristics of two different thermal designs of exhaust gas heat exchanger in TEGs are discussed in terms of transmission loss and acoustic insertion loss. GT-Power simulations and bench tests on a dynamometer with a high-performance production engine are carried out. Results indicate that the acoustic attenuation of TEGs could be determined and optimized. In addition, the feasibility of integration of exhaust-based TEGs and engine mufflers into the exhaust line is tested, which can help to reduce space and improve vehicle integration.