Author(s): John L. Merriam; Stuart Styles
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Abstract: The design following the concepts in Part I is based on an operation plan using a Limited Rate Arranged-demand schedule though it may be less effectively used with other schedules. This schedule requires the irrigator to apply in advance for a day upon which he is permitted the use of the system for the arranged irrigation farm. An assured minimum and a maximum rate (limit) is set in the design procedure by the pipeline or turnout capacity. The farmer used rate seldom is the maximum limiting rate. The required arranged schedule prevents overloading. The reasonable congestion limit provides assurance of availability under most conditions. Implicit in this design procedure is that the farm will be usually irrigated during the daytime. This condition is a very high priority among the educated (experienced) farmers using a flexible supply system. During the arranged day, the irrigator can take water as he wishes as to rate and duration--demand up to the system limiting rate, and at night if so arranged
Year: 1997