npj clean water| 被动式扩散侧加热型单级管与多级平板太阳能膜蒸馏系统

【npj clean water| 被动式扩散侧加热型单级管与多级平板太阳能膜蒸馏系统】：原文链接：Sujon S A, Yi P. Single-stage tubular and multistage planar systems of passive permeate-side-heated solar membrane distillation[J]. npj Clean Water, 2022, 5: 1-10.近年来,被动式扩散侧加热型太阳能膜蒸馏系统被视为一种前景广阔的分布式水处理系统。1 ，比单级平面系统平均高出 71% 。三级平面系统由三个单级模块叠加而成。sys 和蒸馏量分别为 62% 和 5.01 kg m?1 throughout the year, 71% higher than the single-stage planar system on average. The three-stage planar systems were developed by overlapping three single-stage modules. Two adjacent modules shared a common copper sheet that serves as both the top of the condensation chamber of the preceding stage and the bottom of the feedwater chamber of the following stage. The copper sheet can partially transfer the condensation heat of the preceding stage to the feedwater of the following stage, thus enhancing the system energy efficiency ( ?sys and distillate flux of the three-stage systems were 62% and 5.01 kg m ?2 , 34% higher than the single-stage planar systems.Fig.1The performance of single-stage planar systems under natural sunlight.Fig. 2The schematic and photograph of the tubular passive permeate-side-heated solar membrane distillation system.Fig. 3The performance of single-stage tubular systems under natural sunlight.Fig. 4Distillate production rates of single-stage planar and tubular systems per unit area of footprint under natural sunlight.Fig. 5The schematic and photograph of the three-stage planar passive permeate-side-heated solar membrane distillation system.Fig. 6The performance of three-stage planar systems under natural sunlight.