Optimal Design of Long Distance Pressure Water Delivery Pipeline System

Wang, Tao; Man-lin, Zhu; Zhao, Xiao‐Fan; Zhang, Yangsuo

doi:10.1109/iccit.2008.170

2008 Third International Conference on Convergence and Hybrid Information Technology 2008

DOI: 10.1109/iccit.2008.170

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Optimal Design of Long Distance Pressure Water Delivery Pipeline System

Tao Wang¹,

Zhu Man-lin²,

Xiao‐Fan Zhao³

et al.

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Cited by 3 publications

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An Improved Automated Herbicides Machine for Farmers at Oil Palm Plantation

2015

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This project improves on the existing manual herbicides tanks used by farmers at oil palm plantations. The main objective is to design and construct an automated machine that can facilitate the farmer's work of clearing grass at small scale oil palm plantations. In this project, a portable machine trolley which can be handled with ease was contructed. This machine allows the farmers to freely control the flow of herbicide directly towards the grass using one hand. The system will automatically pump the fluid inside the tank and, indicate the signal for high and low water level. The herbicides tank can accommodate 30 L at one time and regulate the pressure manually. This system is controlled by a relay circuit. As a result, the output of the pump can produce a pressure of 0.7 MPa or 7 Bar and the distance of the water from static machine can spray out up to 15 m. The maximum flow of water measured is 5.0 L per minute maximum. As a result, it gives farmers more options for clearing grass at oil palm plantations.

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An Improved Automated Herbicides Machine for Farmers at Oil Palm Plantation

2015

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The Effect of Air Bubbles in Ancient Long-Distance Pipelines

Nikolic

2019

Mouseion

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Air–water interaction in certain types of gravity-flow water pipelines, so-called inverted siphons, has the potential to disturb the flow of water significantly. If such a pipeline is laid across high points in the landscape, air bubbles can, in extreme cases, render the pipeline useless. The mechanics of air–water interaction in pipes is very complex and represents an engineering challenge even today. In antiquity, the builders of a number of aqueducts chose, nonetheless, to lay the pipelines across such high points, running the risk of air bubbles disrupting the flow of water. This article illustrates the precise phenomenon by which large air bubbles become enclosed in pipelines with intermediate high points, quantifies the problem of air bubbles for the pipelines at Pergamon, Smyrna, Alatri, and Lyon, suggests a procedure by which the ancient technicians could have identified and solved the problems associated with air pockets in the line, and points to archaeological evidence that they may, indeed, have done so.

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

Zhu¹,

Zhang²,

Wang³

2012

AMR

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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.

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Optimal Design of Long Distance Pressure Water Delivery Pipeline System

Cited by 3 publications

References 0 publications

An Improved Automated Herbicides Machine for Farmers at Oil Palm Plantation

An Improved Automated Herbicides Machine for Farmers at Oil Palm Plantation

The Effect of Air Bubbles in Ancient Long-Distance Pipelines

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

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