Application of passive radiative cooling for dew condensation |
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| Authors: | Daniel Beysens Marc Muselli Iryna Milimouk Catherine Ohayon Simon M. Berkowicz Emmanuel Soyeux Marina Mileta Pascal Ortega |
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| Affiliation: | 1. ESEME, Service des Basses Températures, Commissariat à l’Energie Atomique—Grenoble, 38054 Grenoble, France;2. ESPCI-PMMH, 10, rue Vauquelin, 75231 Paris Cedex 05, France;3. Université de Corse, UMR CNRS 6134, 20000, Ajaccio, France;4. ESEME, Institut de Chimie de la Matière Condensée de Bordeaux du CNRS, 87 Ave. Dr. Schweitzer, 33608 Pessac Cedex France;5. Laboratoire d’Hydrologie—Environnement, UFR des Sciences Pharmaceutiques, 146 rue Léo Saignat, 33076 Bordeaux, France;6. Minerva Arid Ecosystems Research Centre, Hebrew University of Jerusalem, Earth Science Building, Safra Givat Ram Campus, Jerusalem, 91904, Israel;g Veolia Environnement—Direction de la Recherche, du Développement et de la Technologie, 36 rue de Liège, 75008 Paris, France;h Meteorological and Hydrological Institute of Croatia, GRIC, 10000 Zagreb, Croatia;i Université de la Polynésie Française, B.P.6570, 98702 Faaa, French Polynesia;j International Organization for Dew Utilization (OPUR), 60, rue Emeriau, F-75015 Paris, France |
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| Abstract: | Dew water was collected from several passive foil-based radiative condensers established in a variety of geographic settings: continental (Grenoble, in an alpine valley, and Brive-la-Gaillarde, in the Central Massif volcanic area, both in France), French Atlantic coast (Bordeaux), eastern Mediterranean (Jerusalem, Israel), and the island of Corsica (Ajaccio, France) in the Mediterranean Sea. In Ajaccio two large 30 m2 condensers have been operating since 2000. Additional semi-quantitative dew measurements were also carried out for Komi?a, island of Vis (Croatia) in the Adriatic Sea, and in Mediterranean Zadar and Dubrovnik (both in Croatia). Dew potential was calculated for the Pacific Ocean island of Tahiti (French Polynesia). The data show that significant amounts of dew water can be collected. Selected chemical and biological analyses established that dew is, in general, potable. Continued research is required for new and inexpensive materials that can enhance dew condensation. |
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