Enhanced solar steam generation using carbon nanotube membrane distillation device with heat localization
Enhanced solar steam generation using carbon nanotube membrane distillation device with heat localization
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DOI：
10.1016/j.applthermaleng.2018.12.123
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发表时间：
2019-02-25
影响因子：
6.4
通讯作者：
Rao, Zhong-Hao
中科院分区：
文献类型：
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作者：
Miao, En-Dong;Ye, Meng-Qi;Rao, Zhong-Hao
通过膜的界面太阳能加热来高效地产生太阳能蒸汽是缓解淡水资源短缺的一种有前途的方法。在这项工作中，我们开发了一种膜蒸馏装置（MDD），由碳纳米管（CNT）膜作为太阳能吸收层，定性滤纸作为输水管道和气凝胶毯作为热绝缘体，以实现有效的太阳能收集和热定位，以提高水蒸发。结果表明，在1 kW·m（-2）光强下，MDD的热转换效率高达84.6%，并且在10次循环试验中表现出上级的循环稳定性。因此，自组装和可重复使用的MDD是合适的，作为一个有前途的候选人，海水淡化。
High-efficiency solar steam generation through interfacial solar heating of the membrane is a promising approach to alleviate the shortage of freshwater resources. In this work, we developed a membrane distillation device (MDD), consisting of a carbon nanotube (CNT) membrane as solar absorption layer, a qualitative filter paper as water transmission pipeline and an aerogel blanket as thermal insulator to achieve efficient solar harvesting and heat localization for enhancing water evaporation. The results illustrated that the MDD achieved a thermal conversion efficiency of up to 84.6% at a light intensity of 1 kW m(-2) and showed superior cyclic stability for 10 cycles test. As a consequence, the self-assembled and reusable MDD was suitable as a promising candidate for seawater desalination.