Air mass balance for mass flow rate calculation in pneumatic conveying

Arakaki, Cecilia; Ghaderi, Ali; Sæther, Arild; Ratnayake, Chandana; Enstad, Gisle G.

doi:10.1016/j.powtec.2010.04.007

Cited by 9 publications

(12 citation statements)

References 7 publications

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“…According to the previous research and examinations [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20], preliminary analysis of discretization models has been conducted. The main parameters, that have been considered, were time of mesh generation, accuracy of the results, convergence, PC reassures and visual quality of obtained results.…”

Section: Geometry Modelling and Discretization Of The Fluid Domainmentioning

confidence: 99%

“…Babić et al [9] were considering numerical simulation of multiphase flow across the mills separator type VML.210.50, with goal to achieve the best coal dispersion and separation. CFD modeling is already proven toll in this field (see, as example, Ferrin and Saavedra [10], Dodds et al [11], Vuthaluru et al [12] or Arakaki et al [13]), and it is extensively used for optimization of PC burner design. Other similar types of scientific papers were proposed in references [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical modeling of multiphase flow inside aeromixture channel and low emission burner of boiler OB-650

Mešić¹,

Delić²,

Ganibegović³

2020

Technium

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Determination of multiphase flow inside PC boiler plant is of particular importance for the process control of the boiler and its efficient operation. Nowadays numerical modeling is used as an advanced tool in improvement of this or similar process. Separation of coal particle in aero-mixture channel, after pulverization, represent an important process which has a big effect on boiler efficiency, and its determination represents an important step. In this paper, numerical modeling of multiphase flow inside aero-mixture channel and low emission burner of boiler OB-650 are exposed in several steps from 3D modeling, discretization of fluid domain, setting the physical and mathematical model to validation of same model. Main goals of the same process is to obtain valid numerical model of observed problematic, that will give us data about model parameters that can be used for modeling of the same process with different inlet boundary conditions, and also to obtain appropriate specific process parameters that can be used for rising of level of efficiency and utility of boiler plant in some steady operating modes.

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Section: Geometry Modelling and Discretization Of The Fluid Domainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical modeling of multiphase flow inside aeromixture channel and low emission burner of boiler OB-650

Mešić¹,

Delić²,

Ganibegović³

2020

Technium

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“…Particle velocity is one of the important parameters describing gassolid flow. The accurate, real-time and continuous measurement method of the particle velocity becomes increasingly important for efficient utilization of energy and raw materials, and to optim ize particle handling and control process [1,2]. A typical example is the pneumatic conveying of coal particles, which requires an optimized conveying velocity.…”

Section: Introductionmentioning

confidence: 99%

Local particles velocity measurement using differential linear capacitance matrix

Gao¹,

Deng²,

Wang³

et al. 2018

Meas. Sci. Technol.

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A novel differential linear capacitance matrix (DLCM) was designed for measuring the velocity of the local particles within pneumatic conveying pipeline. The 3D simulation model of the DLCM was built and its sensitivity distribution was analyzed by the finite element method. The velocity measurement principle of the DLCM based on its spatial filtering effect was theoretically deduced, and the velocity of the local particles within the pipeline can be obtained by determining the narrow-band peak frequency of the output capacitance signal of the DLCM. Then the DLCM-based particle velocimeter was further developed and its performance was verified on a gravity-fed solids flow rig. Simulation and experimental results demonstrate that the measurement method is capable of measuring local particles velocity robustly with a relative error not greater than 5.5% and a repeatability less than ±7.78% over the velocity range of 2.4-5.8 m s −1 .

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“…Under normal operating conditions, the heat in the combustion zone will cause ignition of the all incoming fuel. To achieve better understanding of distribution of the coal and gas mixture through complicated mill-ducts, various experimental and numerical research have been conducted (see, for example, Shah et al [8], Dodds et al [9], Vuthaluru et al [10,11] and Arakaki et al [12]). Previous papers have shown that CFD analysis was used for analysing flow profiles and for designs or redesigns of mill-ducts with aim to improve the overall performance.…”

Section: Introductionmentioning

confidence: 99%

Numerical prediction of erosion zones in the aero-mixture channel

Mesic¹,

Delic²,

Ganibegovic³

et al. 2018

ces

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Velocity of solid particles in aero-mixture channel has been recognized as the most significant factor that has an influence on erosion. In this paper, numerical study of particle erosion in aero-mixture channel was conducted due to the main parameters that have the greatest impact. Pulverised coal boiler OB650 is supplied with an aero-mixture (pulverised coal and flue gases) through distribution channels, 2358 Amel Mešić et al. where the distribution of the same aero-mixture is regulated with a tilt of regulation dumper. These types of regulation cause the problems that have greater impact on the internal structure of the same distribution channels. It is concluded that the best way to determinate that problems is with CFD tool. In this case CFD tool was used to simulate the flow field inside the channel, using Euler-Lagrangian mathematical approach.

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Air mass balance for mass flow rate calculation in pneumatic conveying

Cited by 9 publications

References 7 publications

Numerical modeling of multiphase flow inside aeromixture channel and low emission burner of boiler OB-650

Numerical modeling of multiphase flow inside aeromixture channel and low emission burner of boiler OB-650

Local particles velocity measurement using differential linear capacitance matrix

Numerical prediction of erosion zones in the aero-mixture channel

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