Abstract The paper presents a methodology of assessing performance of thermoelectric harvesters (TEH) operating at low temperature gradients using manufacturer datasheet only. Simplified and full TEH models with temperature-independent parameters are established with the former developed in the form of a two-terminal equivalent circuit, typical for renewable energy generators. Normalized expression is derived to assess maximum extractable TEH power for certain environmental conditions, heat sink thermal resistance and thermoelectric module figure of merit. Key role of the heat sink in TEH performance is revealed and corresponding design guidelines are provided. Experimental results are provided, demonstrating close match with analytical predictions, obtained by the proposed methodology.

中文翻译：

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在低温梯度下运行的热电收割机的基于制造商数据的建模和优化设计

摘要 本文介绍了一种仅使用制造商数据表来评估在低温梯度下运行的热电采集器 (TEH) 性能的方法。建立了具有温度无关参数的简化和完整 TEH 模型，前者以两端等效电路的形式开发，这对于可再生能源发电机是典型的。推导出归一化表达式以评估特定环境条件下的最大可提取 TEH 功率、散热器热阻和热电模块品质因数。揭示了散热器在 TEH 性能中的关键作用，并提供了相应的设计指南。提供了实验结果，证明与通过所提出的方法获得的分析预测密切匹配。