Overview

The world’s ever-increasing need for fresh water has led to the use of non-conventional sources such as rain and fog water collection. Although rain water collection is relatively simple, the supply is often erratic. Passive fog water collection has been used in several parts of the world but is only relevant to certain geographical locations. Dew occurrence, however, is far more widespread, can form in most climates and geographic settings, show high frequency and prevalence throughout the year. During the past 20 years, dew collection has therefore been investigated as a serious supplemental source of fresh water. Dew Water offers a thorough review of dew, its formation characteristics and potential for dew collection, for audiences that include policy-makers, non-governmental organizations involved in development aid and sustainable development, engineers, urban planners, researchers and students. After providing a background on atmospheric water, humid air, and sky and materials emissivity, the book deals with dew formation and its estimation with a focus on the use of meteorological data. Dew measurement techniques are reviewed and discussed as well as dew collection by passive means. Computational fluid dynamics technique is described for better design of dew collectors. Dew quality (chemistry, biology) is assessed in view of potable water quality. Costs and economic aspects are also considered.

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9788793609471

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Daniel Beysens, PhD in Physics and in Engineering, is a world specialist of water collection from air. He is the co-founder and President of OPUR International Organization for Dew Utilization. He is also emeritus Director ofResearchatEcoleSup´erieuredePhysiqueetChimiePariswherehecarries outwithhisteamexperimentalandtheoreticalstudyondewcondensationand phase transition. He started the field at the Alternative Energies and Atomic Energy Commission (CEA) when he was Head of Institute. He has authored or co-authored more than 450 publications in international scientific Journals and 11 books. He was awarded many prices in Physics and Environmental Sciences and is Knight of the Order of Academic Palms.

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