English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/72134
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
 |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título : Assessing Sprinkler Irrigation Performance Using Field Evaluations at the Medjerda Lower Valley of Tunisia
Autor : Yacoubi, Samir; Zayani, Khemaies; Slatni, Adel; Playán Jubillar, Enrique
Palabras clave : Sprinkler Irrigation
Uniformity
Wind Drift and Evaporation Losses
Wind Speed
Pressure Head
Fecha de publicación : oct-2012
Citación : Yacoubi S, Zayani K, Slatni A, Playán E. Assessing sprinkler irrigation performance using field evaluations at the Medjerda lower valley of Tunisia. Engineering 4 (10): 682-691 (2012)
Resumen: Irrigation uniformity and wind drift and evaporation losses (WDEL) are major concerns for the design and management of sprinkler irrigation systems under arid or semi-arid conditions. Field trials were carried out to assess irrigation uniformity and WDEL under various wind velocities, sprinkler spacings and operating pressure heads. Based on experimental data, a frequency analysis was performed to infer the occurrence probability of a given uniformity coefficient (UC). In addition, statistical regressions were used to model WDEL as a function of different climatic variables. Increasing the operating pressure head improved uniformity at low wind speeds. It was shown that UC has been severely impaired at wind speeds above 4 m/s. In the prevailing wind conditions, the frequency analysis showed that a sprinkler spacing of 12 m × 12 m provided the best uniformity. In the local conditions, it is recommended to stop irrigation when wind velocity exceeds 4 m/s. Moreover, it was shown that wind speed and relative humidity were the main significant variables influencing WDEL.
Descripción : 10 Pags., 6 Figs., 7 Tabls.
Versión del editor: http://dx.doi.org/0.4236/eng.2012.410087
URI : http://hdl.handle.net/10261/72134
DOI: 10.4236/eng.2012.410087
ISSN: 1947-3931
E-ISSN: 1947-394X
Aparece en las colecciones: (EEAD) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
PlayanE_Engineering_2012.pdf803,45 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.