The Effect of Feed Solution Temperature on the Power Output Performance of a Pilot-Scale Reverse Electrodialysis (RED) System with Different Intermediate Distance
The Effect of Feed Solution Temperature on the Power Output Performance of a Pilot-Scale Reverse Electrodialysis (RED) System with Different Intermediate Distance
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DOI：
10.3390/membranes9060073
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发表时间：
2019-06-01
期刊：
影响因子：
4.2
通讯作者：
Higa, Mitsuru
中科院分区：
文献类型：
--
作者：
Mehdizadeh, Soroush;Yasukawa, Masahiro;Higa, Mitsuru
基于膜的反电渗析（RED）可以将两种溶液之间的盐度梯度能量转化为电能，而不会对环境产生任何影响。对于使用天然海水和河水的RED工艺的实际应用，RED性能取决于气候（温度）。在本研究中，我们使用两种类型的中试规模的RED堆，评估了进料溶液温度对所得RED性能的影响，这些堆由200个细胞对组成，总有效膜面积为40 m(2)，中间距离（200 μ m和600 μ m）不同。分别评估了溶液室和膜的电阻、开路电压（OCV）、最大总输出功率、泵送能量和系统随后的净输出功率与温度的关系。提高温度对所研究的所有因素都有积极的影响，并且在所有情况下都得到了有趣的线性关系，这使我们能够提供简单的经验方程来预测最终的性能。此外，温度依赖性受实验条件（如流量和烟囱类型）的强烈影响，特别是在中试规模烟囱的情况下。
Membrane-based reverse electrodialysis (RED) can convert the salinity gradient energy between two solutions into electric power without any environmental impact. Regarding the practical application of the RED process using natural seawater and river water, the RED performance depends on the climate (temperature). In this study, we have evaluated the effect of the feed solution temperature on the resulting RED performance using two types of pilot-scale RED stacks consisting of 200 cell pairs having a total effective membrane area of 40 m(2) with different intermediate distances (200 mu m and 600 mu m). The temperature dependence of the resistance of the solution compartment and membrane, open circuit voltage (OCV), maximum gross power output, pumping energy, and subsequent net power output of the system was individually evaluated. Increasing the temperature shows a positive influence on all the factors studied, and interesting linear relationships were obtained in all the cases, which allowed us to provide simple empirical equations to predict the resulting performance. Furthermore, the temperature dependence was strongly affected by the experimental conditions, such as the flow rate and type of stack, especially in the case of the pilot-scale stack.