Thermal design and temperature gradient analysis for a thermoelectric energy harvest device in off-shore and marine application
Thermal design and temperature gradient analysis for a thermoelectric energy harvest device in off-shore and marine application
复制标题
近海和海洋应用中热电能量收集装置的热设计和温度梯度分析
DOI：
10.1109/eptc.2016.7861560
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
M. A. Arasu
中科院分区：
文献类型：
--
作者：
G. Tang;S. Rabeek;M. A. Arasu
本文提出了利用方位推进器内部的热润滑油与方位推进器外的冷海水之间的温度梯度来实现基于热电的能量采集系统。建立了推力器内油流动以及热油、热电机组、系统中其他固体部件和海水之间换热的流体动力学耦合模型。模拟了系统内的温度分布，提取并分析了三甘醇冷热面的温度梯度。利用较大的三甘醇外壳尺寸，在三甘醇热表面增加散热器，选择导热系数较高的润滑油，提高油液运动速度，进一步优化系统，以实现三甘醇冷热表面温度梯度较高。最后，对生物污垢层对TEG模块温度梯度的影响进行了评价。
In this study, thermoelectric based energy harvesting system which utilizes the temperature gradient between the hot lubricant oil inside the azimuth thrusters and cold sea water outside the azimuth thrusters is proposed. Coupled modeling of the fluid dynamics for the oil flow inside the thruster and heat transfer between the hot oil, thermoelectric generator (TEG) module, other solid components in the system and sea water is built. The temperature distribution in the system is simulated and temperature gradient between the hot surface and cold surface of the TEG is extracted and analyzed. The system is further optimized to achieve the higher temperature gradient between hot and cold surface of the TEG by utilizing bigger size of the enclosure for the TEG, adding a heat sink at the hot surface of the TEG, choosing the lubricant oil with higher thermal conductivity and driving higher velocity of the oil movement. Lastly, the effect of the bio fouler layer on the temperature gradient of the TEG module is evaluated.