Evaluation of heat transfer on a backward acting grate

Peters, Bernhard; Džiugys, Algis

doi:10.5755/j01.mech.20.1.3775

Cited by 6 publications

(3 citation statements)

References 24 publications

(18 reference statements)

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“…In recent years the DEM-CFD coupling approach has become a valuable tool for simulations of reactors processing granular materials. Examples are simulations of rotary kilns (Shi et al, Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/ces 2008; Amritkar et al, 2014), grate firing systems (Peters and Džiugys, 2014;Simsek et al, 2009), drying of granular materials Sudbrock et al, 2015) or pyrolysis of biomass in packed bed reactors Copertaro et al, 2015). Bluhm-Drenhaus et.al.…”

Section: Introductionmentioning

confidence: 98%

Coupled three dimensional DEM–CFD simulation of a lime shaft kiln—Calcination, particle movement and gas phase flow field

Krause

Liedmann

Wiese

et al. 2015

Chemical Engineering Science

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Section: Introductionmentioning

confidence: 98%

Coupled three dimensional DEM–CFD simulation of a lime shaft kiln—Calcination, particle movement and gas phase flow field

Krause

Liedmann

Wiese

et al. 2015

Chemical Engineering Science

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“…Translation and rotation of particles are described by the classical DEM [21,22] and are based on Newton's law for translational and rotational motion:…”

Section: Translation and Rotation Of Particlesmentioning

confidence: 99%

The First Unified and Transient Modeling Platform to Build a Digital Twin of Blast Furnaces Based on the Extended Discrete Element Method

Peters

2023

steel research int.

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The current research addresses a unified and integrated Euler–Lagrange simulation platform based on the extended discrete element method that advances significantly the digital twin technology applied to blast furnaces. It includes a particulate phase characterized by its dynamic and thermodynamic state that is coupled to multiphase computational fluid dynamics (CFD) by heat, mass, and momentum transfer. Thus, the framework deals with transient and reacting 3D granular and multiphase flows. The latter includes all relevant processes taking place in a blast furnace: formation of a reducing agent, e.g., carbon monoxide, reduction of iron‐bearing material, and softening and melting with the subsequent transfer into the corresponding phase of the multiphase CFD solver and thus, identifying unambiguously the cohesive zone. Validation is carried out on different length scales from a particle level to the global dimensions of a blast furnace and shows a good agreement between predictions and experimental data. Applying fast and innovative algorithms allows for moderate computational times, i.e., 1000 s real‐time takes ≈2.3 d on an Intel(R) Xenon(R) Silver 4114 CPU @ 2.2 GHz processor with 40 cores and the entire domain divides into eight partitions.

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“…This method can be coupled to continuous methods such has CFD and/or Finite Element Analysis (FEA) by covering the interaction between discrete and continuous phases such as fluids or solid structures at the same time. The XDEM has been developed by Peters 21) and applied to many Multiphysics applications such as combustion, 22,23) heat up processes, 24) drying, [25][26][27] pyrolysis [28][29][30][31] as well as reduction [32][33][34][35] and many other applications. [36][37][38] So far, the upper part of the blast furnace known as the shaft, where the reducing gas is the only fluid phase was modeled by XDEM method.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Investigation on the Capability of eXtended Discrete Element Method for Treating the Dripping Zone of a Blast Furnace

Baniasadi

Peters

2018

ISIJ Int.

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The role of molten iron and slag in the dripping zone of a blast furnace is very critical to reach a stable operational condition. The existence of several fluid phases and solid particles in the dripping zone of a blast furnace, makes the newly developed eXteneded Discrete Element Method (XDEM) as an EulerianLagrangian approach, suitable to resolve the dripping zone of a blast furnace. In the proposed model, the fluid phases are treated by Computational Fluid Dynamics (CFD) while the solid particles are solved by Discrete Element Method (DEM). These two methods are coupled via momentum, heat and mass exchanges. The main focus of current study is to investigate the influence of packed properties such as porosity and particle diameters, calculated by the XDEM, on the fluid phases for isothermal. In order to present the capability of the XDEM for this application. The validity of the proposed model is demonstrated by comparing model prediction results with the available experimental data.

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Evaluation of heat transfer on a backward acting grate

Cited by 6 publications

References 24 publications

Coupled three dimensional DEM–CFD simulation of a lime shaft kiln—Calcination, particle movement and gas phase flow field

Coupled three dimensional DEM–CFD simulation of a lime shaft kiln—Calcination, particle movement and gas phase flow field

The First Unified and Transient Modeling Platform to Build a Digital Twin of Blast Furnaces Based on the Extended Discrete Element Method

Preliminary Investigation on the Capability of eXtended Discrete Element Method for Treating the Dripping Zone of a Blast Furnace

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