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Pipelines for Flexible Deliveries

by John L. Merriam, California Polytechnic State Univ, San Luis Obispo, CA, USA,



Document Type: Proceeding Paper

Part of: Hydropower: Recent Developments

Abstract:

The use of pipelines facilitates flexible deliveries for projects and flexible distribution on the farm. Pipelines have the advantage relative to canals in that they do not have to follow contour grades so can be laid on straight lines and up and down hills. Further, they need less right-of-way and maintenance, and can be operated in conjunction with pump systems under pressure. They are classified as (1) closed and (2) semi-closed (float valve) systems which can transmit pressure and flow rate information and so are suited for automation, and (3) as open systems from which the inflow rate turned in at the upper end must be taken out and therefore is not suitable for automation. Many existing open systems can be upgraded by converting to semi-closed operations.

Subject Headings: Irrigation systems | Water supply systems | Water pipelines | Automation and robotics | Pipelines | Flexible pipes | Control systems

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