A heat transfer numerical model for thermoelectric generator with cylindrical shell and straight fins under steady-state conditions
A heat transfer numerical model for thermoelectric generator with cylindrical shell and straight fins under steady-state conditions
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DOI：
10.1016/j.applthermaleng.2014.04.018
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发表时间：
2014-07
影响因子：
6.4
通讯作者：
Minfeng Zhou;Yongling He;Yanmin Chen
中科院分区：
文献类型：
--
作者：
Minfeng Zhou;Yongling He;Yanmin Chen
本文在总结汽车尾气热电发电机（TEG）最新研究成果的基础上，提出了一种新型圆柱形壳体直翅片式TEG。建立了稳态条件下的二维有限差分传热数值模型。该模型用于预测不同模拟条件下TEG的输出性能。文中给出了输入参数对输出功率的平均贡献率CRvar，以评价不同输入参数对输出功率的影响程度。仿真结果表明，提高排气入口温度和排气入口质量流量，降低冷却剂入口温度，在一定程度上可以改善TEG的性能。本文所建立的传热数值模型也可用于其它类型TEG的数值模拟和设计初期的优化工作。
Based on summarizing the latest research of vehicle exhaust thermoelectric generator (TEG), this paper proposes a newly designed TEG with cylindrical shell and straight fins. A two-dimensional heat transfer numerical model using finite difference method is established under steady-state conditions. This model is used to predict the output performance of TEG in different simulation conditions. The average contribution rate to the output power CRvaris given in this paper to evaluate the influence level of different input parameters. Simulation results show that increasing the inlet temperature and the inlet mass flow rate of the exhaust, as well as reducing the inlet temperature of the coolant are useful methods to improve the performance of TEG in a certain extent. The heat transfer numerical model presented in this paper can be also applied to the numerical simulations and the optimization work on early designing stages of other types of TEG.