Thermoelectric generator utilizing boiling-condensation (experiment and modeling)
Thermoelectric generator utilizing boiling-condensation (experiment and modeling)
复制标题
利用沸腾冷凝的热电发生器（实验和建模）
DOI：
10.1109/ict.2003.1287571
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
S. Nishio
中科院分区：
文献类型：
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作者：
Rencai Chu;K. Kadotani;T. Shintani;T. Tanimura;T. Hatanaka;S. Nishio
本文提出了一种利用锅炉和冷凝器之间循环的热介质沸腾和冷凝的热电发电机。采用富氟惰性（FC5312）作为热介质（工质）。选择了外强制对流换热、内自然对流沸腾的立式管式锅炉。为了提高热电模块热侧温度，将热侧电极加工成低翅片的冷凝面。在风洞试验台上进行了发电试验。实验参数为冷却水入口温度、热风速度和温度。结果表明，温差为145K时，热电转换效率达到4.6%，锅炉效率（锅炉从热空气中吸收的热量与热空气初始持有的热量之比）达到57%。考虑通过热电模块的热损失，系统效率（输出功率与热风初始持有的热量之比）可达到2.2%以上。并对两种锅炉和两种热电材料进行了比较。在此基础上，提出了该热电发电机的预测方法。通过与实验结果的比较，验证了该预测方法的有效性。
A thermoelectric generator utilizing boiling and condensation of thermal medium circulating between a boiler and condensers was proposed in this study. Fuluorinert (FC5312) was used as the thermal medium (working fluid). A vertical tube type boiler with an outside forced convective heat transfer and an inside natural convective boiling was chosen. In order to increase the hot side temperature of the thermoelectric module, the hot side electrode was processed into a low-finned condensing surface. A power generating experiment was carried out in a wind-tunnel test bench. Experimental parameters were the inlet temperature of the cooling water, the velocity and the temperature of the hot air. As the results, the thermoelectric conversion efficiency reached 4.6% for a temperature difference of 145K and the boiler efficiency (the ratio of the heat absorbed by boiler from the hot air to the heat that the hot air holds initially) reached 57%. Taking account of the heat loss passing through the thermoelectric module, the system efficiency (the ratio of the power output to the heat that the hot air holds initially) can reach more than 2.2%. Moreover, two types of boiler and two sorts of thermoelectric material are compared. Further, a prediction method for this thermoelectric generator is proposed. Comparing with the experimental results, it is confirmed that the prediction method is effective.
Masanori MONDE：“浸没在饱和液体中的垂直均匀加热管中自然对流沸腾期间的临界热通量”传热 1990。
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