Economic Pipe Sizing in Pumped Irrigation Systems

by Roland P. Perold, Prof.; Dept. of Agric. Engrg., Univ. of Stellenbosch, Stellenbosch, Republic of South Africa,

Serial Information: Journal of the Irrigation and Drainage Division, 1974, Vol. 100, Issue 4, Pg. 425-441

Document Type: Journal Paper


The method whereby the most economical pipe sizes in a pumped system is found by determining the flow rates at which pipe sizes should be changed from one size to the next, according to the time pumped per year is developed for general application. Use of the method in the design of branched flow systems is examined for both fixed head and variable head pumping plants. The method, as illustrated by an example, is found to be convenient and gives the best solution fairly rapidly.

Subject Headings: Irrigation systems | Economic factors | Pipelines | Pumps | Pumping stations | Pipe flow | Flow duration | Flow rates

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