Print Email Facebook Twitter Fog Water Collection Efficiency Title Fog Water Collection Efficiency: The Influence of Collector Geometry Author Goense, Anna (TU Delft Civil Engineering and Geosciences) Contributor van de Giesen, Nick (mentor) Hut, Rolf (mentor) Heijman, Sebastiaan (mentor) Degree granting institution Delft University of Technology Programme Water Management Date 2018-07-23 Abstract Fog harvesting is a sustainable drinking water solution for arid climates. Previous studies have developed an analytical model to predict the fog water collection efficiency as a product of aerodynamic and deposition efficiency as independent factors. In this study, we tested the assumption that deposition efficiency stays unchanged when the geometry of the fog catcher is adjusted. We assessed the collection efficiency of both straight and curved fog water collectors using computational fluid dynamics models and performed controlled experiments in a climatic wind tunnel on sample fog water collectors. The analytical model disregards convex fog harvesters because their lower drag coefficient reduces the aerodynamic efficiency of the fog harvester. The results of the CFD models show that efficiency can be doubled if fog catchers are built convex facing the wind. The wind tunnel experiments support the results from the CFD models. The results of this study show that for convex fog harvesters, although less fog passes through the net, the deposition efficiency increases resulting in a net increase of water collection. Subject fog harvestingdevelopmentdrinking waterfogwind tunnel To reference this document use: http://resolver.tudelft.nl/uuid:4d328c3b-45ad-4a4a-9e59-2551c453ce9a Embargo date 2018-07-23 Part of collection Student theses Document type master thesis Rights © 2018 Anna Goense Files PDF Anna_Goense_Thesis_Versio ... sitory.pdf 16.38 MB Close viewer /islandora/object/uuid:4d328c3b-45ad-4a4a-9e59-2551c453ce9a/datastream/OBJ/view