BEYSENS, Daniel; MILIMOUK, Irina; NIKOLAYEV, Vadim; MUSELLI, Marc; MARCILLAT, Jacques

doi:10.1016/S0022-1694(03)00025-8

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

http://creativecommons.org/licenses/by-nc-nd/

BEYSENS, Daniel
Physique et mécanique des milieux hétérogènes [PMMH]
Service des Basses Températures [SBT ]

MILIMOUK, Irina
ESEME : Équipe du Supercritique pour l'Environnement, les Matériaux et l'Espace : Équipe commune CEA-CNRS (2000-2014)

NIKOLAYEV, Vadim
Service de physique de l'état condensé [SPEC - UMR3680]
Service des Basses Températures [SBT ]

Langue

Article de revue

Ce document a été publié dans

Journal of Hydrology. 2003-05-15, vol. 276, n° 1-4, p. 1-11

Elsevier

Résumé en anglais

An inexpensive radiative condenser for collecting atmospheric vapor (dew) was tested in Grenoble (France). The surface temperature measurements are correlated with meteorological data (wind velocity, air temperature) and compared to the corresponding surface temperature of a horizontal Polymethylmethacrylate (Plexiglas) reference plate located nearby. The condenser surface is a rectangular foil (1 x 0.3 m 2) made of TiO2 and BaSO4 microspheres embedded in polyethylene. The foil has an angle with respect to horizontal. The backside of the device, thermally isolated, faces the direction of the dominant nocturnal wind. Both a 2-D numerical simulation of the air circulation around the foil and experimental measurements shows that the 30° angle is a good compromise between weak wind influence, large light-emission solid angle and easy drop collection. The study was conducted from November 25, 1999 to January 23, 2001. In comparison to the reference plate, it is found that water yield can be increased by up to 20 % and water collection greatly facilitated.< Réduire

Mots clés en anglais

Airflow

Hydrometeorology

Heat transfer

Hydrodynamics

Water

Atmospheric deposition

Dew

Métadonnées

Licence d’utilisation du document

Using radiative cooling to condense atmospheric vapor: a study to improve water yield

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

DOI

Origine

Unités de recherche