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cfd model of the coal carbonization process

CFD model of the coal carbonization process ScienceDirect

2015-6-15  The model of the coal carbonization process is based on the following assumptions. • The process is modeled in 2D. • The coke chamber charge is assumed to be a porous medium. The gaseous mixture flowing in the pores is treated as an ideal gas. • The diffusion of the moisture in the charged coal

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CFD model of the coal carbonization process ScienceDirect

The model considers a range of aspects associated with the carbonization process, such as the evaporation and condensation of the water, the evolution of the volatile components, the change in the density and the flow resistance during the coking process. Conductive, convective and radiative types of heat transfer are included in the model.

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CFD model of the coal carbonization process Request PDF

Request PDF On Jun 15, 2015, Łukasz Słupik and others published CFD model of the coal carbonization process Find, read and cite all the research you need on ResearchGate

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Sensitivity analysis of the computational model of the

2017-3-5  The coal carbonisation process is analysed using the developed CFD model. • The model is verified and tuned employing temperature measurements. • Simulated temperatures are in satisfied agreement with measured ones. • Sensitivity of important model parameters on the simulated temperatures is presented. •

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Numerical modeling of the carbonization process in the

CFD model of the coal carbonization process. Thirty PAN-fiber tows moving at a constant linear speed emitted off-gas and their porosity increased during carbonization. The CFD model included

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A combined numerical and experimental approach to

2019-8-31  A combined numerical and experimental approach is developed to study carbonization process. • The approach integrates experiments, a DEM model and a CFD model. • The approach is applied to low-rank coal ellipsoidal briquettes in a pilot-scale coke oven. • Effects of briquettes packing structure on carbonization are identified. •

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CFD analysis of the drying process of coal blend during

This paper deals with the computational model and its experimental validation of the paper vacuum drying process. Proposed numerical approach is based on the commercial CFD software package, FLUENT.

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Sensitivity analysis of the computational model of the

Request PDF On Dec 1, 2016, Łukasz Słupik and others published Sensitivity analysis of the computational model of the coal carbonisation process Find, read and cite all the research you need

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CFD simulation of particle size change during the coal

2018-1-1  However, for the coal type (PITTSBURGH NO.8) and composition that was used in this study, Johnson reported a model based on the shrinking core model that matched the data collected experimentally at Gas Technology Institute and therefore is capable of describing the process we simulated in our paper. On the other hand, the shrinking core model

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Carbonization of Coal EOLSS

2017-1-16  The prepared coal is charged into carbonization chambers by a larry car. The coals in the carbonization chamber are carbonized by heat transferred from the combustion chamber. When the coking process is completed, the oven doors are opened, the pusher is spotted opposite the pusher-side door, and the hot coke is forced out of the oven by means of

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CFD analysis of the drying process of coal blend during

This paper deals with the computational model and its experimental validation of the paper vacuum drying process. Proposed numerical approach is based on the commercial CFD software package, FLUENT.

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CiteSeerX — Numerical Simulation for Coal Carbonization

CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): A Computational Fluid Dynamic model is analyzed for coking process in a coke oven charge using PHOENICS CFD package (Version 3.2). The model reported in this paper consists of a combination of a two- dimensional model for coke oven gas phase flowing in porous media and a one-dimensional model for semi-coke phase

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CFD SIMULATION OF THE REACTING FLOW PROCESS OF

2020-10-13  MODEL DESCRIPTION A comprehensive CFD model is established to describe the gas-particle reacting flow of coal pyrolysis in hydrogen plasma in this work, which includes the k-ε turbulence model for gaseous turbulent flow with heat and mass transfer, the discrete phase model (DPM) for momentum, heat and mass transfer between gas and particles, the

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Carbonization of Coal EOLSS

2017-1-16  The prepared coal is charged into carbonization chambers by a larry car. The coals in the carbonization chamber are carbonized by heat transferred from the combustion chamber. When the coking process is completed, the oven doors are opened, the pusher is spotted opposite the pusher-side door, and the hot coke is forced out of the oven by means of

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28 COKE MAKING A numerical modelling of non-

2020-11-26  the upper part of the oven. The coal/coke fixed bed is of a parallelepiped shape, the typical dimensions being approx. 1 m in height, 4 m in width and 15 m in length. The carbonization process of the coal be gins at the top and at the bottom of the fixed bed. Then the carbonization front will move continuously through the bed.

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Development of process model of a rotary kiln for

2012-11-28  Development of process model of a rotary kiln for volatile organic compound recovery from coconut shell 1675 Korean J. Chem. Eng.(Vol. 29, No. 12) to raise the gas temperature. Instead, the carbonization process of coconut shell uses external heating [3-5]. When the internal burner used in coal pyrolysis is used in the VOC recovery process, the re-

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Optimization and simulation of low-temperature

2015-12-8  A two dimensional transient model of coal carbonization was developed by Wei et al. to simulate the coking process including heat transfer and fluid flow in the coking chamber. Raiee et al. [ 13 ] had studied the optimization of the angle of curvature for a Ranque–Hilsch vortex tube, using both experimental and Reynolds stress turbulence

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CFD simulation of particle size change during the coal char

2018-1-1  CFD simulation of particle size change during the coal char gasification process using the population balance model with Powder Technology ( IF 5.134) Pub Date : 2018-01-01, DOI: 10.1016/j Emad Ghadirian, Javad Abbasian, Hamid Arastoopour

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Mathematical models of the thermal decomposition of

The correlation gives good agreement with published values for the thermal conductivity of amorphous carbon as a limiting case. The model of heat transfer in a coke-oven charge is one-dimensional and uses, as submodels, the descriptions of the physical properties and chemical changes in coal during its decomposition to coke as given previously.

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CFD Modeling of Combustion in Cement Kiln CFD Flow

Process in Cement Kiln. In the cement plant, the Pre-calcined raw material is supplied to the rotary kiln where a series of physical and chemical reaction (combustion) take place to form the clinker. After that, Hot clinker is sent to the cooler. The energy required for clinker formation is achieved by burning fuel (coal, oil, gas) at the

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CFD SIMULATION OF THE REACTING FLOW PROCESS OF

2020-10-13  MODEL DESCRIPTION A comprehensive CFD model is established to describe the gas-particle reacting flow of coal pyrolysis in hydrogen plasma in this work, which includes the k-ε turbulence model for gaseous turbulent flow with heat and mass transfer, the discrete phase model (DPM) for momentum, heat and mass transfer between gas and particles, the

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Energies Free Full-Text 3-D CFD Modeling for

Three-dimensional computational fluid dynamics (CFD) modeling of the gasification performance in a one-stage, entrained-bed coal gasifier (Shell Coal Gasification Process (SCGP) gasifier) was performed, for the first time. The parametric study used various O2/coal and steam/coal ratios, and the modeling used a commercial code, ANSYS FLUENT. CFD

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CFD Studies on Biomass Thermochemical Conversion

2015-11-24  CFD sub-models of Biomass Thermochemical Conversion Process Biomass thermochemical conversion refers to the processes of biomass gasification for gaseous fuel or syngas, fast pyrolysis for liquid bio-oil, carbonization for solid carbon or combustion for heat

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Carbonization of Coal EOLSS

2017-1-16  The prepared coal is charged into carbonization chambers by a larry car. The coals in the carbonization chamber are carbonized by heat transferred from the combustion chamber. When the coking process is completed, the oven doors are opened, the pusher is spotted opposite the pusher-side door, and the hot coke is forced out of the oven by means of

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Mathematical models of the thermal decomposition of coal

Mathematical models of the thermal decomposition of coal. 5. One of the main uncertainties in analysing the coking process is the path followed by the volatile gases as they leave the oven. study was to make a first attempt at developing a model for determining the gas flow distribution within an oven during carbonization. The model

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CFD simulation of particle size change during the coal char

2018-1-1  CFD simulation of particle size change during the coal char gasification process using the population balance model with Powder Technology ( IF 5.134) Pub Date : 2018-01-01, DOI: 10.1016/j Emad Ghadirian, Javad Abbasian, Hamid Arastoopour

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Assessment of coal gasification in a pressurized fixed bed

2020-10-6  CFD model to simulate the gasification process in the lower suction gasifier. The model includes drying, pyrolysis, combustion, and gasification. In this paper, a multiphase Euler–Euler model is used, considering the change of momentum, mass, and energy. The simulation results are compared with the experimental data, and there is a good

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Critical analysis of underground coal gasification models

The most important may be divided into three groups: equilibrium, kinetic and CFD models. The purpose of this work was the detailed critical analysis of more advanced approaches (than equilibrium considerations) applied in simulations of the coal conversion process both kinetic and based on computational fluid dynamics.

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Formation of Coal Definition, Uses & Fossil Fuels with

Coal is fossil fuel or fuel that comes from the remains of prehistoric plants or animals. The formation of coal occurs over millions of years via a process known as carbonation. In this process, dead vegetation is converted into carbon-rich coal under very high

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An improved CFD model of gas flow and particle

2016-4-20  An improved CFD model of gas flow and particle interception in a fiber material Zhiwei Sun 1,2, JianhuiWen 1, Xiao Luo 2, Wen Du 1, Zhiwu Liang 2, Kaiyun Fu 2 1 Technology Center of China Tobacco Hunan Industrial Co., Ltd., Changsha 410007, China

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