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Otimização de redes de irrigação usando algoritmos genéticos
- Source :
- Repositório Institucional de Geociências-RIGEO, Companhia de Pesquisa de Recursos Minerais (CPRM), instacron:CPRM
- Publication Year :
- 2014
- Publisher :
- Scientific Research, 2014.
-
Abstract
- Mathematical-computational optimisation models of irrigation networks with a distributed flow that are capable of providing hydraulic data are important for understanding the behaviour of a system in relation to the distribution of the hydraulic head (energy) and the pressure in the pipes of the network. The objective of this study was to examine the distribution of the parameters ofhydraulic irrigation pipes, which were optimised using genetic algorithms. The degree of the op- timisation was evaluated with the help of the genetic algorithms based on the diameters of stretchof the network: two for the lateral lines, four for the derivation lines, four for the secondary lines and one for the main line. A MatLab code was developed that considered all of the losses of energy, both distributed losses and those at specific locations between the beginning of the network and the pump system. The sensitivity analysis was based on the variations in the slope of the ground (0%, 2.5% and 5%). The results show that for pipes with a distributed flow, the influence of the behaviour of the kinetic energy in the pipe contributed to the distance between the energy lines and the piezometric lines at the beginning of each stretch after the decrease in the diameter of the pipes. At the end of the pipes, the values of the energy lines and the piezometric lines were very similar, and they were essentially the same for the final emitter.
- Subjects :
- GENETIC ALGORITHMS
OTIMIZAÇÃO DE REDES DE IRRIGAÇÃO
PIEZOMETRIC LINES
CONDUITS UNDER PRESSURE
MATHEMATICAL OPTIMISATION
FRICTION TUBING
ADJUSTED F FACTOR
ALGORITMOS GENÉTICOS
COEFICIENTE DE ATRITO
COEFICIENTE DE AJUSTE F
OPTIMIZATION OF IRRIGATION NETWORKS
ENERGY LINES
CONDUÍTES SOB PRESSÃO
CARGA HIDRÁULICA
HIDRÁULICA DE CONDUTOS FORÇADOS
MICROASPERSÃO
IRRIGAÇÃO POR MICROASPERSOR
HIDRÁULICA
MULTIPLE-OUTLET PIPES
MICRO-SPRINKLER IRRIGATION
OTIMIZAÇÃO MATEMÁTICA
TUBULAÇÃO COM MÚLTIPLAS SAÍDAS
HYDRAULIC HEAD
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Repositório Institucional de Geociências-RIGEO, Companhia de Pesquisa de Recursos Minerais (CPRM), instacron:CPRM
- Accession number :
- edsair.od......3056..76db1974452357ae868f5b87eb821e19