Peculiarities of Application Pressure Distributive Pipelines in Different Engineering Systems

Bihun, Iryna

doi:10.23939/jtbp2019.02.014

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…Perforated pipelines are widely used in various industries, in particular water supply and drainage, land reclamation, ventilation, mechanical engineering, energy, chemical production, etc. [1][2][3]. Such pipes usually work with the addition of liquid along the path (prefabricated pipelines); they serve as important structural elements of treatment facilities of water supply and drainage systems.…”

Section: Introductionmentioning

confidence: 99%

Assessing the value of the hydraulic friction factor in pipelines working with a flow connection along the path

Kravchuk

Cherniuk

Kravchuk

et al. 2022

EEJET

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The results of an experimental study of the hydraulic friction factor of perforated pipelines that work with the collection of fluid along the path are reported. Clarification of this issue will make it possible to solve an important engineering task – to devise a reliable procedure for the hydraulic calculation of perforated pipes. The experiments were carried out on an assembled experimental bench. A steel pipeline with a perforated part of 1–3 m was investigated. Perforation holes were taken with a diameter of 3.6 and 9 mm. In the experiments, fluid flow, pressure loss, and average velocity were measured. Based on the data obtained, the values of the coefficient under study were calculated. It has been established that it is significantly larger than its values with uniform movement and is variable in length of the pipeline. Experimental dependences λcol on the value of the ratio of the velocities of the flowing jets of liquid to the average flow velocity in the corresponding section (Uh/V), as well as on the design characteristics of the channel, were obtained. It is shown that the lower value of the degree of pipe perforation corresponds to the higher values of λcol. This result can be explained by the influence of the attached flow rate on the main flow. The confirmation of this conclusion is the resulting shapes of diagrams of the average flow velocity obtained in the experiments, which differ significantly from standard diagrams with uniform motion. Obviously, additional energy is spent on the reformation of the velocities, and this causes additional head losses. Dependences were obtained for calculating the considered coefficient for prefabricated pipelines, including in the presence of transit flow rate. Their use in the calculation of the pipes under consideration will increase the reliability and efficiency of the sewage treatment plant, in which they are important structural elements

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Section: Introductionmentioning

confidence: 99%

Assessing the value of the hydraulic friction factor in pipelines working with a flow connection along the path

Kravchuk

Cherniuk

Kravchuk

et al. 2022

EEJET

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Calculation of Effective Parameters of Distribution Drainage Pipelines

Kravchuk,

Velychko

et al. 2024

Lecture Notes in Civil Engineering

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Variation of Hydraulic Resistance in Pressure Pipelines of an Open-Type Hydraulic System

Sydor,

Orel

2024

Energy eng. control syst.

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Pressure distributive pipelines with path distribution of fluid are part of various technical systems. Pressure losses at abrupt and smooth pipe reductions are components of total pressure losses in these pipelines. After all, the equalization of fluid distribution along the length of distributive pipelines is achieved, in particular, by reducing their diameter in the direction of flow. Depending on the configuration of the pipe reductions, pressure losses at this pipeline element can vary. For an open-type hydraulic system, a regulatory characteristics of pressure in the pipeline has been obtained with a constant fluid flow in a general form. The influence of measures necessary to change energy losses in the pipeline on the hydraulic resistance of the unregulated section of the pipeline has been taken into account. Options for these measures have been proposed for a pressure pipeline with pipe reduction.

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Peculiarities of Application Pressure Distributive Pipelines in Different Engineering Systems

Cited by 4 publications

References 2 publications

Assessing the value of the hydraulic friction factor in pipelines working with a flow connection along the path

Assessing the value of the hydraulic friction factor in pipelines working with a flow connection along the path

Calculation of Effective Parameters of Distribution Drainage Pipelines

Variation of Hydraulic Resistance in Pressure Pipelines of an Open-Type Hydraulic System

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