Arid
DOI10.1088/1748-3190/10/3/036005
Dew harvesting efficiency of four species of cacti
Malik, F. T.1; Clement, R. M.1; Gethin, D. T.3; Beysens, D.5,6,7; Cohen, R. E.4; Krawszik, W.1; Parker, A. R.2
通讯作者Malik, F. T.
来源期刊BIOINSPIRATION & BIOMIMETICS
ISSN1748-3182
EISSN1748-3190
出版年2015
卷号10期号:3
英文摘要

Four species of cacti were chosen for this study: Copiapoa cinerea var. haseltoniana, Ferocactus wislizenii, Mammillaria columbiana subsp. yucatanensis and Parodia mammulosa. It has been reported that dew condenses on the spines of C. cinerea and that it does not on the spines of F. wislizenii, and our preliminary observations ofM. columbiana and P. mammulosa revealed a potential for collecting dew water. This study found all four cacti to harvest dew on their stems and spines (albeit rarely on the spines of F. wislizenii). Dew harvesting experiments were carried out in the UK, recording an increase in cacti mass on dewy nights. By applying a ranking relative to a polymethyl methacrylate (Plexiglas) reference plate located nearby, it was found that C. cinerea collected the most airborne moisture followed byM. columbiana, P. mammulosa and F. wislizenii respectively, with mean efficiency ratio with respect to the Plexiglas reference of 3.48 +/- 0.5, 2.44 +/- 0.06, 1.81 +/- 0.14 and 1.27 +/- 0.49 on observed dewy nights. A maximum yield of normalized performance of 0.72 +/- 0.006 l/m(-2) on one dewy night was recorded for C. cinerea. Removing the spines fromM. columbiana was found to significantly decrease its dew harvesting efficiency. The spines of three of the species were found to be hydrophilic in nature, while F. wislizenii was hydrophobic; the stems of all four species were hydrophilic. The results of this study could be translated into designing a biomimetic water collecting device that utilizes cactus spines and their microstructures.


英文关键词water harvesters cacti fog dew condenser hydrophilic hydrophobic
类型Article
语种英语
国家Wales ; England ; USA ; France
收录类别SCI-E
WOS记录号WOS:000356312300014
WOS关键词WATER ; DESERT ; VAPOR
WOS类目Engineering, Multidisciplinary ; Materials Science, Biomaterials ; Robotics
WOS研究方向Engineering ; Materials Science ; Robotics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/186217
作者单位1.Swansea Univ, Coll Med, Inst Life Sci, Swansea SA2 8PP, W Glam, Wales;
2.Nat Hist Museum, Dept Life Sci, London SW7 5BD, England;
3.Swansea Univ, Coll Engn, Swansea SA2 8PP, W Glam, Wales;
4.MIT, Dept Chem Engn, Cambridge, MA 02139 USA;
5.ESPCI PMMH, F-75231 Paris, France;
6.CEA, SBT, ESEME, F-38504 Grenoble, France;
7.OPUR, F-75015 Paris, France
推荐引用方式
GB/T 7714
Malik, F. T.,Clement, R. M.,Gethin, D. T.,et al. Dew harvesting efficiency of four species of cacti[J],2015,10(3).
APA Malik, F. T..,Clement, R. M..,Gethin, D. T..,Beysens, D..,Cohen, R. E..,...&Parker, A. R..(2015).Dew harvesting efficiency of four species of cacti.BIOINSPIRATION & BIOMIMETICS,10(3).
MLA Malik, F. T.,et al."Dew harvesting efficiency of four species of cacti".BIOINSPIRATION & BIOMIMETICS 10.3(2015).
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