Dew water collector for potable water in Ajaccio (Corsica Island, France)
Dew water collector for potable water in Ajaccio (Corsica Island, France)
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DOI：
10.1016/s0169-8095(02)00100-x
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发表时间：
2002-09-01
影响因子：
5.5
通讯作者：
Louche, A
中科院分区：
文献类型：
--
作者：
Muselli, M;Beysens, D;Louche, A
我们报告的发展，一个廉价的辐射冷凝器收集大气蒸汽。根据在格勒诺布尔（法国）建立小型工作模型所获得的经验，在阿雅克肖（科西嘉，法国）建立了10 × 3 m（2）的原型。冷凝表面是由嵌入聚乙烯中的TiO 2和BaSO 4微球制成的矩形箔，并且相对于水平面成30度角。该装置的中空部分是隔热的，面向主导夜间风的方向。露水测量与气象数据进行了相关性，并与凝结在水平聚甲基丙烯酸甲酯（PMMA，有机玻璃）参考板上的露水进行了比较。该平板用作参比标准品单元，位于附近。2000年7月22日至2001年11月11日（478天），有145露天的参考板（30%），但214露天的冷凝器（45%）。这一产量相当于767升（平均每露日3.6升）。在此期间的最高产量为11.4升/天。露水质量可以拟合到一个简单的模型中，该模型可以从简单的气象数据（温度，湿度，风速，云量）预测露水的产生。1999年10月16日至2000年7月16日对从板中收集的水进行化学分析，2000年7月17日至2001年3月17日对从冷凝器中收集的水进行化学分析。研究了悬浮物、pH值、SO 42-、Cl-、K+、Ca 2+等离子浓度的变化。只有Cl-和SO 42-离子有时被发现显着。风向分析表明，Cl-是由于海水喷雾和SO 42-位于阿雅克肖海湾的发电厂的燃料燃烧。除了弱酸性（平均pH值约为6）和高浓度的悬浮固体外，露水符合法国饮用水对上述离子的要求。(C)2002 Elsevier Science B. V.保留所有权利。
We report on the development of an inexpensive radiative condenser for collecting atmospheric vapor. Based on the experience gained rising a small working model in Grenoble (France), a prototype of 10x3 m(2) was established in Ajaccio (Corsica, France). The condensing surface is a rectangular foil made of TiO2 and BaSO4 microspheres embedded in polyethylene and has an angle of 30degrees with respect to horizontal. The hollow part of the device, thermally isolated, faces the direction of the dominant nocturnal wind. Dew measurements were correlated with meteorological data and compared to dew condensed on a horizontal polymethylmethacrylate (PMMA, Plexiglas) reference plate. The plate served as a reference standard unit and was located nearby. Between July 22, 2000 and November 11, 2001 (478 days), there were 145 dew days for the reference plate (30%), but 214 dew days for the condenser (45%). This yield corresponds to 767 1 (3.6 1, on average, per dew day). The maximum yield in the period was 11.4 l/day. Dew mass can be fitted to a simple model that predicts dew production from simple meteorological data (temperature, humidity, wind velocity, cloud cover). Chemical analyses of the water collected from the plate were performed from October 16, 1999 to July 16, 2000 and from the condenser, from July 17, 2000 to March 17, 2001. The following parameters were investigated: suspended solids, pH, concentration of SO42-, Cl-, K+, Ca2+ ions. Only Cl- and SO42- ions were sometimes found significant. Wind direction analyses revealed that Cl- is due to the sea spray and SO42- to the combustion of fuel by an electrical plant located in the Ajaccio Gulf. Except for a weak acidity (average pH approximate to 6) and high concentration of suspended solids, dew water fits the requirements for potable water in France with reference to the above ions. (C) 2002 Elsevier Science B.V. All rights reserved.