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Author López, Alejandro ♦ Valera, Diego Luis ♦ Molina-Aiz, Francisco
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Multidisciplinary Digital Publishing Institute
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Social sciences ♦ Social problems & services; associations ♦ Social welfare problems & services ♦ Natural sciences & mathematics ♦ Life sciences; biology ♦ Physiology & related subjects ♦ Technology ♦ Medicine & health ♦ Human physiology ♦ Personal health & safety ♦ Agriculture & related technologies
Subject Domain (in MeSH) Physical Phenomena ♦ Biological Phenomena ♦ Biological Sciences ♦ Natural Science Disciplines ♦ Physical Sciences ♦ Technology, Industry, and Agriculture ♦ Technology and Food and Beverages ♦ Environment and Public Health ♦ Health Care ♦ Geographic Locations ♦ Geographic Locations
Subject Keyword Discipline Biotechnology ♦ Facility Design And Construction ♦ Sound ♦ Ventilation ♦ Methods ♦ Wind ♦ Climate ♦ Geography ♦ Hot Temperature ♦ Spain ♦ Thermodynamics ♦ Journal Article ♦ Research Support, Non-u.s. Gov't
Abstract The present work has developed a methodology for studying natural ventilation in Mediterranean greenhouses by means of sonic anemometry. In addition, specific calculation programmes have been designed to enable processing and analysis of the data recorded during the experiments. Sonic anemometry allows us to study the direction of the airflow at all the greenhouse vents. Knowing through which vents the air enters and leaves the greenhouse enables us to establish the airflow pattern of the greenhouse under natural ventilation conditions. In the greenhouse analysed in this work for Poniente wind (from the southwest), a roof vent designed to open towards the North (leeward) could allow a positive interaction between the wind and stack effects, improving the ventilation capacity of the greenhouse. The cooling effect produced by the mass of turbulent air oscillating between inside and outside the greenhouse at the side vents was limited to 2% (for high wind speed, u(o) ≥ 4 m s(-1)) reaching 36.3% when wind speed was lower (u(o) = 2 m s(-1)).
Spatial Coverage Spain
Description Country affiliation: Spain
Author Affiliation: López A ( Department of Rural Engineering, University of Almería, Ctra. Sacramento s/n, 04120 Almería, Spain. alexlopez@ual.es)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2011-01-01
Publisher Place Switzerland
e-ISSN 14248220
Journal Sensors
Volume Number 11
Issue Number 10


Source: WHO-Global Index Medicus