Research on actual performance and energy recovery characteristic of capacitive deionization regeneration method for absorption air-conditioning system
Research on actual performance and energy recovery characteristic of capacitive deionization regeneration method for absorption air-conditioning system
复制标题
吸收式空调系统电容去离子再生法实际性能及能量回收特性研究
DOI：
10.1016/j.enconman.2018.06.086
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发表时间：
2018-09
影响因子：
10.4
通讯作者：
Feng Cheng
中科院分区：
文献类型：
--
作者：
Hui Zhao;Xiaosong Zhang;Xiuwei Li;Boqing Ding;Feng Cheng
吸收式空调系统有利于可再生能源的利用和绿色制冷剂的使用，是解决能源短缺和环境恶化的一个很好的措施。采用热法再生时，由于再生过程中热量损失较大，再生效果不理想。为了优化吸附剂的性能，提出了在电场作用下利用电极再生吸附剂的电容去离子（CDI）再生方法。已有的研究表明，基于CDI的系统的理论性能系数可以达到3。然而，这些结果缺乏实验支持。因此，本文对该系统的实际性能进行了实验研究.在实验中分析了浓度等参数的影响。实验结果也证实了能量回收的特性，为提高CDI系统的性能提供了一种新的途径。电力和能源模型已经开发，一些重要的参数进行了研究。实验结果给出了实际的再生能力和相应的COP。理论结果揭示了能量回收对COP的改善以及等效串联电阻、流量和电容的影响。研究发现，在适当的能量回收条件下，COP有进一步提高2倍甚至3倍的潜力，可以达到6。
In favor of renewable energy and using green refrigerant, the absorption air-conditioning system is a good measure for overcoming energy shortage and environmental deterioration. With the thermal method, its performance is not good enough because of much heat loss in the regeneration process. For optimal performance, capacitive deionization (CDI) regeneration method was proposed by regenerating absorbent with electrodes in electric field. Previous research shows the theoretical COP of the CDI based system could attain 3. However, these results lack experimental support. Therefore, this paper presents the experimental research on the actual performance. The influence of concentration and other parameters has been analyzed in the experiments. Based on the experimental results, the energy recovery characteristic also gets confirmed and it provides a new way to improve the performance of the CDI based system. Electricity and energy models have been developed; some important parameters have been investigated. The experimental results present the actual regeneration capacity and corresponding COP. The theoretical results expose the improvement of COP with energy recovery and the influences of equivalent series resistance, flow rate and capacitance. It found the COP has potential to further increase by 2 or even 3 times, could reach 6 with appropriate energy recovery.
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