APPLICATION OF PIPE NETWORKS IN IRRIGATION SYSTEM

Abstract

The objective of this dissertation is to analyze planning and design of pipe networks to irrigate a farm or field where irrigation water is not easily assessable to the farmers from nearby canal due to undulating topography. Pipe flow has large frictional losses and is generally costlier as compared to open channel flow section. But pipes can be preferred in undulating sand dunes, depression areas and where head loss is not a problem. Specialized structures are needed on pipelines for smooth water supply and protect them against damage. Pipeline on sloping land may develop excessive pressure heads that must be controlled by standpipes (Float valve stand, over flow stand) or regulating valves, collection gallery (box stand). Particular emphasis needs to be given in closed pipe systems to the analysis of water hammer, and in open and semi closed pipe systems to the determination of the size and pressure control structures.