On-farm Sprinkler Irrigation Performance as affected by the Distribution System

In this paper, the influence of the pressurised distribution irrigation system on the performance of the on-farm sprinkler network is analysed. The pressure values at the hydrants were calculated by means of a stochastic simulation model using a random procedure to generate a large number of differe...

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Bibliographic Details
Published in:Biosystems engineering 2007, Vol.96 (1), p.99-109
Main Authors: Lamaddalena, N., Fratino, U., Daccache, A.
Format: Article
Language:English
Subjects:
Agricultural machinery and engineering
Agronomy. Soil science and plant productions
Biological and medical sciences
crop production
design
equations
equipment performance
Fundamental and applied biological sciences. Psychology
Generalities. Biometrics, experimentation. Remote sensing
irrigated farming
irrigation systems
mathematical models
nozzles
pressure
sprinkler irrigation
stochastic processes
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Summary:In this paper, the influence of the pressurised distribution irrigation system on the performance of the on-farm sprinkler network is analysed. The pressure values at the hydrants were calculated by means of a stochastic simulation model using a random procedure to generate a large number of different operating conditions. An iterative model was developed for generating the characteristic curve of the on-farm sprinkler irrigation network. The pressure variation downstream of the hydrant was computed by intersecting the characteristic curve of the latter with the generated on-farm characteristic curve. A detailed performance analysis was carried out on an existing irrigation system. This study highlighted that the performance of the on-farm sprinkler network is greatly affected by the variation in the hydrant pressure head.
ISSN:1537-5110
1537-5129
DOI:10.1016/j.biosystemseng.2006.09.002