NUMERICAL SIMULATION OF CONVECTIVE TRANSPORT OF FLY ASH-WATER SLURRY IN HORIZONTAL PIPE BENDS

To study the influence of slenderness on the compressive bearing capacity of autoclaved fly ash perforated brick masonry long columns and provide experimental evidences for making corresponding technical code, compression tests were conducted on 9 autoclaved fly ash perforated brick masonrys long columns of different slenderness. The damage patterns and compression performance are analyzed. The experimental results indicate that compressive capacity decreases proportionally as slenderness increases and the proposed formula of axial compressive bearing capacity for autoclaved fly ash perforated brick masonry columns is given. The nonlinear FEA program ANSYS is also adopted to simulate the behaviors of masonry columns. By comparing results find that the simulated results agree well with the test ones, the rationality and applicability of the model are verified.

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The Design of Electrostatic Precipitation for the Home Heating Boiler with Fine Coal Water Slurry Combustion

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.726-731.1972 ◽

2013 ◽

Vol 726-731 ◽

pp. 1972-1976 ◽

Cited By ~ 1

Author(s):

Li Jun Nie ◽

Yang Liu ◽

Mei Huang

Keyword(s):

Fly Ash ◽

Electrostatic Precipitation ◽

Emission Standard ◽

Dust Collection ◽

Water Slurry ◽

Fine Coal ◽

Home Heating ◽

Coal Water Slurry ◽

Tube Type ◽

Heating Boiler

The coal-water slurry produced with Datong coal was tested in a home boiler for heating. The experiment results of dust collection with the new tube type electrostatic precipitation of fly ash of coal water slurry combustion fit the emission standard of air pollutants for boilers (GB 13271-2001). The parameters for the electrostatic precipitation are as follows: the drift velocity of fly ash of coal water slurry combustion, 10.39 cm/s, the number of the tube, 64, the size of the tube, 25.6cm×25.6cm×20cm, the power, 0.24kW.

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Study of pipeline transportation of dense fly ash-water slurry

Fuel and Energy Abstracts ◽

10.1016/s0140-6701(03)81600-4 ◽

2003 ◽

Vol 44 (3) ◽

pp. 136

Keyword(s):

Fly Ash ◽

Pipeline Transportation ◽

Water Slurry

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Experimental Visualization and Numerical Simulation of Liquid-Gas Two-Phase Flows in a Horizontal Pipe

Volume 7: Fluids Engineering ◽

10.1115/imece2017-72113 ◽

2017 ◽

Cited By ~ 1

Author(s):

Milad Darzi ◽

Chanwoo Park

Keyword(s):

Numerical Simulation ◽

Gas Flow ◽

Cfd Simulation ◽

Glass Tube ◽

Flow Patterns ◽

Two Phase Flows ◽

Two Phase ◽

Mixture Flow ◽

Horizontal Pipe ◽

Flow Rates

This paper presents the results of both visualization experiment and numerical simulation for two-phase (water-air mixture) flows in a horizontal tube. A visualization experimental setup was used to observe various two-phase flow patterns for different flow rates of water/air mixture flow in a glass tube of 12 mm in diameter. Total of 303 experimental data points were compared with Mandhane’s flow map. Most of the data for stratified, plug and slug flows were found to be in good agreement. However, annular flow was observed for relatively lower gas flow rates and also wavy flow occurred at relatively higher liquid flow rates in this experiment. A three-dimensional Computational Fluid Dynamics (CFD) simulation was performed using OpenFOAM employing “interFoam” as the solver to simulate the two-phase flows in horizontal pipe based on Volume-Of-Fluid (VOF) method. The simulated and experimentally observed flow patterns for the same set of superficial velocities shows acceptable similarities for stratified, wavy, plug, slug and annular flows. Also, the computed values of the void fraction and pressure drop for the numerical simulations shows reasonable agreement with well-known correlations in literature.

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