Optimization of irrigation water distribution networks, layout included

The purpose of this paper is to develop a procedure which takes into account both the network layout and the pipe size of an on-demand water branched network in order to obtain the lowest total cost (investment and energy cost). The process begins with a main ring network which is obtained by giving consideration to the possible alternatives of branched irrigation networks, taking into account the limitations imposed by plot boundaries, gravel roads, etc. The optimization process progressively eliminates pipes to obtain the most inexpensive branched irrigation network, verifying the criteria of the economic series methodology for sizing the pipes and the design flow obtained in the pipelines according to Clémentʹs methodology. The dimensioning through the Economic Series Method determines the optimum diameter as a function of flow.