||Minimum Cost Design of Water Distribution Systems.
Woo, Don J. ;
Charle, C. O. ;
||Kentucky Water Resources Inst., Lexington.
||RR-62; DI-14-01-0001-3285; OWRR-B-017-KY; B-017-KY(3),; 03205
Water distribution ;
Cost engineering ;
Dynamic programming ;
Pipe flow ;
Computer programs ;
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The objective was to develop the analytical tools and procedures for minimum cost design of water distribution systems. Both analog and digital means of carrying out pressure and flow calculations were developed. As a result of this effort, digital programs for pressure and flow calculations in water distribution systems were written and have been widely distributed to practicing engineers. One procedure is based on a direct solution of the basic system equations using a linearization scheme and has several advantages over conventional techniques such as the Hardy Cross method. These include avoiding the need to initially balance the network and an assured convergence of the procedure. Using this tool a procedure was developed for selection pipe diameter which will result in a minimum cost design within the prescribed constraints. The method of steepest ascent and dynamic programming concepts were used to carry out the optimization. This procedure applies to closed loop systems without internal pumping. (Modified author abstract)