当前位置: X-MOL 学术Int. J. of Precis. Eng. and Manuf.-Green Tech. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Experimental and Thermal Analysis of Solar Thermoelectric System Performance Incorporated with Solar Tracker
International Journal of Precision Engineering and Manufacturing-Green Technology ( IF 5.3 ) Pub Date : 2021-05-10 , DOI: 10.1007/s40684-021-00341-8
Tahsin Atalay , Yusuf Yakut , Yavuz Köysal , Seyda Özbektaş , Hakan Bülbül , Bahattin Topaloğlu

In this study, it is aimed to determine the energy generation capability of the designed and manufactured thermoelectric system when mounted on the two-axis solar tracking system. Thus, it was possible to compare the results obtained from current study with previous study. The system used in previous study was comprised of a thermoelectric generator (TEG) for energy conversion, a linear Fresnel lens for concentrating solar rays, and a one-axis tracking system to increase the electrical and thermal efficiency of the system. In this study, a dual-axis (two-axis) tracking system was used as a tracking system to examine the change in thermal and electrical efficiency. Therefore, experimental measurements were performed again using both two-axis and one-axis solar tracking systems on 16th October 2019 and 17th October 2019, respectively, at the location which falls at 41°14′ N and 36°26′ E. Additionally, the heat transfer and electricity generation performance of TEG was theoretically analyzed using CFD model. For this purpose, a numerical model consisting TEG with heat sink was developed. It was observed that the model data obtained and the experimental data were in good agreement. The values of parameters such as temperature, solar radiation, wind speed and TEG open circuit voltage were measured instantaneously during the measurements. The maximum open circuit voltages obtained is 1.02 and 1.13 V for one-axis and dual-axis systems, respectively. The solar radiation values were measured as 464 and 472 \(\mathrm{W}/{\mathrm{m}}^{2}\), respectively when the maximum open circuit voltages value is obtained. The duration for measurements was kept about 15 min so that the average values of these parameters were used in calculations. Thus, the values of maximum output power \(\left({\mathrm{P}}_{\mathrm{maxout}}\right)\), electrical efficiency \(\left({\upeta }_{\mathrm{e}}\right)\) and Seebeck coefficient \(\left( {\alpha _{{{\text{TEG}}}} } \right)\) were calculated and given in the paper.



中文翻译:

太阳能追踪器的太阳能热电系统性能实验与热分析

本研究旨在确定设计和制造的热电系统安装在两轴太阳跟踪系统上时的能量产生能力。因此,有可能将当前研究与以前的研究结果进行比较。先前研究中使用的系统包括用于能量转换的热电发生器(TEG),用于聚集太阳光线的线性菲涅耳透镜,以及用于提高系统电和热效率的单轴跟踪系统。在这项研究中,使用双轴(两轴)跟踪系统作为跟踪系统来检查热效率和电效率的变化。因此,分别在2019年10月16日和2019年10月17日分别使用两轴和一轴太阳跟踪系统进行了实验测量,在41°14'N和36°26'E处的位置。另外,使用CFD模型从理论上分析了TEG的传热和发电性能。为此,建立了包含TEG和散热器的数值模型。观察得到的模型数据与实验数据吻合良好。在测量过程中,即刻测量温度,太阳辐射,风速和TEG开路电压等参数值。对于单轴和双轴系统,获得的最大开路电压分别为1.02和1.13V。太阳辐射值的测量值为464和472 建立了包含热沉的TEG的数值模型。观察得到的模型数据与实验数据吻合良好。在测量过程中,即刻测量温度,太阳辐射,风速和TEG开路电压等参数值。对于单轴和双轴系统,获得的最大开路电压分别为1.02和1.13V。太阳辐射值的测量值为464和472 建立了包含热沉的TEG的数值模型。观察得到的模型数据与实验数据吻合良好。在测量过程中,即刻测量温度,太阳辐射,风速和TEG开路电压等参数值。对于单轴和双轴系统,获得的最大开路电压分别为1.02和1.13V。太阳辐射值的测量值为464和472 单轴和双轴系统分别为13V。太阳辐射值的测量值为464和472 单轴和双轴系统分别为13V。太阳辐射值测得为464和472当获得最大开路电压值时,分别为\(\ mathrm {W} / {\ mathrm {m}} ^ {2} \)。测量时间保持约15分钟,以便在计算中使用这些参数的平均值。因此,最大输出功率\(\ left({\ mathrm {P}} _ {\ mathrm {maxout}} \ right)\),电效率\(\ left({\ upeta} _ {\ mathrm { e}} \ right)\)和Seebeck系数\(\ left({\ alpha _ {{{\ text {TEG}}}}}} \ right)\)并在本文中给出。

更新日期:2021-05-10
down
wechat
bug