Discussion on Operation Mode of Long Distances Gravity-Fed Pressure Diversion Project

Abstract:

The characteristics of long distance gravity-fed pressure water-conveying projects are long pipe length, huge changes in rise and down of pipeline arrangement, and complex hydraulic conditions. It is the water hammer that mainly influences the safe operation of such projects. Based on a real long distance gravity-fed pressure water conveying pipeline system, fluid transients processes under different operation modes were analyzed by using the method of characteristics. The pipeline longitudinal arrangement is high in two ends and low in the middle part. The research puts forward that for such pipeline arrangement using valve set in the midway of the pipeline to control the system is evidently better than that of valve at the downstream end of pipeline. In this way, pipeline working pressure can be effectively reduced, in turn, the pipe pressure grade can be decreased and the investment of the project can be reduced.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 7125-7130
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.7125
• Online since: January 2012
• Authors: Man Lin Zhu, Yan He Zhang, Tao Wang
• Keywords: Gravity-Fed Pressure Water Convey, Method of Characteristics, Operation Mode, Plunger Valves

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DOI: 10.1109/iccit.2008.170