The Experts below are selected from a list of 1212 Experts worldwide ranked by ideXlab platform
A.r. Reed - One of the best experts on this subject based on the ideXlab platform.
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the dependence of power consumption of pneumatic conveying systems upon bulk material properties Pipeline Bore and routing and mode of flow
Proceedings of the Institution of Mechanical Engineers Part E: Journal of Process Mechanical Engineering, 1995Co-Authors: T Schuster, M S A Bradley, A.r. ReedAbstract:In this paper the dependence of the power consumption of pneumatic conveyors upon conveyed materials, Pipeline route and Bore, and mode of flow has been examined. The findings are that, with different materials and modes of flow, not only is the amount of power consumed very different but it varies in different ways with Pipe Bore and routing. Additionally it has been found that, for any given conveying system, the choice of air mover also has a strong influence on the power requirement.
Mohammad Rohizat - One of the best experts on this subject based on the ideXlab platform.
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Case Study on CFD investigation of dense phase pneumatic conveying at a Pipeline enlargement
2014Co-Authors: Muhammad Rashdan, Mohammad RohizatAbstract:Pneumatic conveying is being widely used by industry for their conveying system and the most critical problem that the system has is the corrosion of the Pipeline. Some of the many engineers has develop a solution order to reduce the corrosion rate of the Pipeline that is to increase the diameter of the Pipe with objective to reduce the flow velocities as the flow velocities contribute the most in corroding the Pipeline. By using Fluent 6.3.26 simulation program, ‘Eulerian’ Computational Fluid Dynamic (CFD) model, simulating the movement of the particles is possible and by varying the three different Pipeline geometry; single Bore, abrupt step, and gradual step, constructed using Gambit 2.4.6 from a Pipe Bore of 75-100 mm. The flow behaviour of plug of material passing through the Pipeline is investigated. With 5x10-3 s time step, the solid volume fractions is recorded at 0.01 s of flow time at the point of enlargement and visualised throughout the Pipe. Supported by 5 m/s air flow, the plug movement is illustrated showing that there is a potential of stagnant zone formation with the abrupt step enlargement geometry, and on the other hand, the gradual step shows a smooth dispersed particle flow without any potential of stagnant zone formation.
T Schuster - One of the best experts on this subject based on the ideXlab platform.
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the dependence of power consumption of pneumatic conveying systems upon bulk material properties Pipeline Bore and routing and mode of flow
Proceedings of the Institution of Mechanical Engineers Part E: Journal of Process Mechanical Engineering, 1995Co-Authors: T Schuster, M S A Bradley, A.r. ReedAbstract:In this paper the dependence of the power consumption of pneumatic conveyors upon conveyed materials, Pipeline route and Bore, and mode of flow has been examined. The findings are that, with different materials and modes of flow, not only is the amount of power consumed very different but it varies in different ways with Pipe Bore and routing. Additionally it has been found that, for any given conveying system, the choice of air mover also has a strong influence on the power requirement.
M. Phil - One of the best experts on this subject based on the ideXlab platform.
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THERMODYNAMICS AND FLUID MECHANICS GROUP THE INFLUENCE OF BENDS ON FLUID TRANSIENTS PROPAGATED IN INCOMPRESSIBLE Pipe FLOW
2016Co-Authors: J. A. Swaffield, M. PhilAbstract:The influence of a bend on the fluid transients propagated by a rapid valve closure in a long Pipeline is examined by means of a short dimensional analysis and a comprehensive series of experimental tests designed to record the effects of varying in turn: the Pipeline diameter to thickness ratio (7.35 to 48), Pipe elasticity to fluid bulk modulus ratio (0.27 to 93.6), the restraint applied to the Pipeline, the bend radius of curvature to Pipe Bore ratio (0 to 5), the included angle of the bend (0 " to 135") and the initial flow velocity. From these tests the influence of a bend is found to be solely dependent on its geometry. Empirical formulae are proposed which express the reflection and transmission of a transient at a bend in terms of the bend radius of curvature to Pipe Bore ratio and included angle. The formulae are tested by varying both the angle and curvature of a series of bends mounted in turn in a steel Pipeline and found to be accurate within the limits of measurement possible. A method designed to predict the effect of a multiple bend made up of a series of bends the individual reflection and transmission coefficients of which were known or predictable is tested and found to be accurate to within &7 per cent
Muhammad Rashdan - One of the best experts on this subject based on the ideXlab platform.
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Case Study on CFD investigation of dense phase pneumatic conveying at a Pipeline enlargement
2014Co-Authors: Muhammad Rashdan, Mohammad RohizatAbstract:Pneumatic conveying is being widely used by industry for their conveying system and the most critical problem that the system has is the corrosion of the Pipeline. Some of the many engineers has develop a solution order to reduce the corrosion rate of the Pipeline that is to increase the diameter of the Pipe with objective to reduce the flow velocities as the flow velocities contribute the most in corroding the Pipeline. By using Fluent 6.3.26 simulation program, ‘Eulerian’ Computational Fluid Dynamic (CFD) model, simulating the movement of the particles is possible and by varying the three different Pipeline geometry; single Bore, abrupt step, and gradual step, constructed using Gambit 2.4.6 from a Pipe Bore of 75-100 mm. The flow behaviour of plug of material passing through the Pipeline is investigated. With 5x10-3 s time step, the solid volume fractions is recorded at 0.01 s of flow time at the point of enlargement and visualised throughout the Pipe. Supported by 5 m/s air flow, the plug movement is illustrated showing that there is a potential of stagnant zone formation with the abrupt step enlargement geometry, and on the other hand, the gradual step shows a smooth dispersed particle flow without any potential of stagnant zone formation.