scholarly journals CALCULATIONS OF SHORT PIPELINES TAKING INTO ACCOUNT THE FLOW STABILIZATION

2021 ◽  
pp. 13-17
Author(s):  
Olena Gizha
Keyword(s):  
Water Supply ◽  
Mutual Influence ◽  
Usual Method ◽  
Water Supply Systems ◽  
Local Resistance ◽  
Pressure Losses ◽  
Economic Decisions ◽  
Factors Influencing ◽  
Flow Stabilization ◽  
Supply Systems

Analyzing the existing dependences on the calculation of short pressure pipelines in turbulent mode, significant shortcomings of these recommendations were identified. A physical model of motion is proposed, which explains the processes occurring in the area of stabilization after local resistance and allows to establish the factors influencing its length.Experiments on pipes with different roughness and different pipeline fittings made it possible to analyze the change in kinematic characteristics in the area after resistance. Studies have shown that in short pipes, the length of which is less than the length of the stabilization section, there are less pressure losses than in the calculations by the usual method, when there are simply local and length losses. Dependencies and graphs are given that take into account the mutual influence of local resistances in the case of their location at a distance less than the stabilization area. The proposed recommendations make it possible to make more informed economic decisions when designing short pressure pipelines of various water supply systems.

scholarly journals МАТЕМАТИЧЕСКАЯ МОДЕЛЬ КОРРОЗИИ ВНУТРИ МЕТАЛЛИЧЕСКИХ ВОДОПРОВОДНЫХ ТРУБ

SWorldJournal ◽  
2018 ◽  
pp. 37-44
Author(s):  
Huy Nguyen ◽  
Ngoc Nguyen
Keyword(s):  
Cast Iron ◽  
Energy Consumption ◽  
Water Supply ◽  
Water Flow ◽  
Water Supply Systems ◽  
Pressure Losses ◽  
Corrosion Intensity ◽  
Supply Systems

In water supply systems, one of the most important factors is corrosion of pipelines from steel and cast-iron pipes, an increase in pressure losses, which reduces water flow and increases energy consumption. Excessive corrosion intensity is determined by

scholarly journals МАТЕМАТИЧЕСКАЯ МОДЕЛЬ КОРРОЗИИ ВНУТРИ МЕТАЛЛИЧЕСКИХ ВОДОПРОВОДНЫХ ТРУБ

SWorldJournal ◽  
2018 ◽  
pp. 37-44
Author(s):  
Huy Nguyen ◽  
Ngoc Nguyen
Keyword(s):  
Cast Iron ◽  
Energy Consumption ◽  
Water Supply ◽  
Water Flow ◽  
Water Supply Systems ◽  
Pressure Losses ◽  
Corrosion Intensity ◽  
Supply Systems

In water supply systems, one of the most important factors is corrosion of pipelines from steel and cast-iron pipes, an increase in pressure losses, which reduces water flow and increases energy consumption. Excessive corrosion intensity is determined by

ELECTRICITY LOAD PREDICTION FOR WATER SUPPLY SYSTEMS

2008 ◽  
Vol 7 (4) ◽  
pp. 453-458
Author(s):  
Mihai Gavrilas ◽  
Gilda Gavrilas ◽  
Ovidiu Ivanov
Keyword(s):  
Water Supply ◽  
Water Supply Systems ◽  
Load Prediction ◽  
Electricity Load ◽  
Supply Systems

LAVIN NDZ-S BRONZE

Alloy Digest ◽  
1965 ◽  
Vol 14 (5) ◽  
Keyword(s):  
Water Supply ◽  
Physical Properties ◽  
Tensile Properties ◽  
Base Alloy ◽  
High Strength ◽  
Water Supply Systems ◽  
Copper Base ◽  
Valve Stem ◽  
Copper Base Alloy ◽  
Supply Systems

Abstract LAVIN NDZ-S BRONZE is a copper-base alloy recommended as a high-strength dezincification and dealuminization resistant valve stem material in water supply systems. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting and machining. Filing Code: Cu-151. Producer or source: R. Lavin & Sons Inc..

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