Comparing plastic foils for dew collection : Preparatory laboratory-scale method and field experiment in Kenya

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Tuure , J , Korpela , A , Hautala , M , Rautkoski , H , Hakojarvi , M , Mikkola , H , Duplissy , J , Pellikka , P , Petaja , T , Kulmala , M & Alakukku , L 2020 , ' Comparing plastic foils for dew collection : Preparatory laboratory-scale method and field experiment in Kenya ' , Biosystems Engineering , vol. 196 , pp. 145-158 . https://doi.org/10.1016/j.biosystemseng.2020.05.016

Title: Comparing plastic foils for dew collection : Preparatory laboratory-scale method and field experiment in Kenya
Author: Tuure, Juuso; Korpela, Antti; Hautala, Mikko; Rautkoski, Hille; Hakojarvi, Mikko; Mikkola, Hannu; Duplissy, Jonathan; Pellikka, Petri; Petaja, Tuukka; Kulmala, Markku; Alakukku, Laura
Contributor organization: Department of Agricultural Sciences
Agrotechnology
Mikko Hautala / Principal Investigator
Institute for Atmospheric and Earth System Research (INAR)
Polar and arctic atmospheric research (PANDA)
Helsinki Institute of Physics
Department of Geosciences and Geography
Department of Physics
Helsinki Institute of Sustainability Science (HELSUS)
Date: 2020-08
Language: eng
Number of pages: 14
Belongs to series: Biosystems Engineering
ISSN: 1537-5110
DOI: https://doi.org/10.1016/j.biosystemseng.2020.05.016
URI: http://hdl.handle.net/10138/345744
Abstract: Passive dew collection could be a viable option as a source of irrigation water in arid areas. The plastic foil acting as a condensing surface plays a key role in the passive dew collection regime. A laboratory method for comparing various plastic foils for dew collection was prepared and tested. The focus was on creating a method for measuring the attributes affecting dew condensation and the flow of dew droplets on the measured surface. A low-density polyethylene foil designed for dew collection, white polyethylene plastic, black polyethylene plastic, and white polyvinyl chloride plastic were used as the test plastics. The laboratory dew yields were compared with model calculations. In addition, field trials were conducted in arid conditions in Maktau, Kenya, to compare with the laboratory measurement. Results from the hardware model tests were not reflected in the results obtained from the field conditions. The laboratory tests showed that the dew-harvesting quality of plastic foils is difficult to evaluate using the laboratory test rig. A more comprehensive evaluation regime requires tests performed in field conditions or further development of the test rig used here. (C) 2020 IAgrE. Published by Elsevier Ltd. All rights reserved.
Subject: Dew harvesting
Plastic foil
Drought
WATER
ISLAND
VAPOR
MODEL
1182 Biochemistry, cell and molecular biology
216 Materials engineering
Peer reviewed: Yes
Rights: cc_by_nc_nd
Usage restriction: openAccess
Self-archived version: acceptedVersion


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