Allocation Of Flow To Plots In
Pressurized Irrigation Distribution Networks
Author(s)
J. Monserrat
Abstract
The method of allocating flow to plots proposed by Clément and Galand (1979)
has been revised. Mention is made of its drawbacks owing to the lack of
consideration of the specific technical-economic factors of current pressurised
irrigation systems (drip or sprinkler) in the plot. A method for fixed irrigation
systems is proposed which, based on economic considerations, determines an
optimum block area. Bearing in mind the method of irrigation in the plot, an
allocation of constant flow is proposed up to a value of maximum surface area,
and, from there on, a linear increase related to the plot area. A formula is also
presented for calculating the maximum number of blocks from variables easily
obtainable in the project phase.
Keywords: irrigation network, pressurized irrigation, allocation of flow.
1 Introduction
In the current context of high competition for water, there is a need for systems
to allow an adequate control of this resource combined with easy management. A
good solution is the use of pressurised irrigation distribution systems.
When engineers face the design of a distribution network, they start with
different size plots that have to be supplied. The design problem consists of
responding to the question of which flow to supply depending on the area of the
plot. Once this question is solved, in the case of networks organised by demand,
the probability of opening is calculated, and hence, the maximum flows in the
network sections, for a specific frequency can be obtained through Clément’s
first formula [1,3]. The following step is the calculation of the diameters of the
sections.
Keywords
irrigation network, pressurized irrigation, allocation of flow.
Related Book
Other papers in this volume
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