Modeling and optimization of the NOx emission characteristics of a tangentially fired boiler with artificial neural networks

Zhou, Hao; Cen, Kefa; Fan, Jianren

doi:10.1016/j.energy.2003.08.004

Cited by 144 publications

(47 citation statements)

References 34 publications

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“…The complexity of these processes explained, in particular due to their close relationship with the physical and chemical phenomena, taking place in the furnace [13]. Therefore, in spite of a number of works in this direction [4,6,12], the choice of the mathematical model, which would ensure correct results, remains relevant. This paper presents the influence of reburning zone stoichiometric ratio on the NO x concentration and unburned carbon-in-fly ash by mathematical modeling.…”

Section: Introductionmentioning

confidence: 99%

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Effect of the Reburning Zone Stoichiometry on the Nox Concentration at the Three-Stage Combustion of Pulverized Coal

2016

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Abstract. Numerical study of heat and mass transfer taking into account the combustion of coal particles in the furnace at the three-stage combustion of pulverized coal was performed. Analysis of the reburning zone stoichiometry on the concentration of nitrogen oxides at the furnace outlet was made. The values of excess air in the primary and reburning combustion zones, providing for the concentration of nitrogen oxides at the furnace outlet is not more than 350 mg/m 3 and unburned carbon not more than 1 % when burning coal with a high content of nitrogen were established.

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Section: Introductionmentioning

confidence: 99%

“…Works [1][2][3][4][5][6][7] are known for the two most effective technological methods of NO x reduction: applying low-NO x burners (LNBs) and, two and three-stage combustion.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Reburning Zone Stoichiometry on the Nox Concentration at the Three-Stage Combustion of Pulverized Coal

2016

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“…A variety of efforts have been made to design efficient algorithms, including genetic algorithms (GA) coupled with CALPHAD-based tools [58,86,87], atomistic simulations [13,31,40], and data-driven approaches [42,55,78,102]. The goal of this work is to develop a platform that integrates federated experimental and computational data repositories with CALPHAD-based tools and mechanistic property models to predict materials behavior and enable materials design using a GA. A model ternary Ni-Al-Cr alloy is chosen to demonstrate this platform.…”

Section: Introductionmentioning

confidence: 99%

A Computational Framework for Material Design

Kattner

Campbell

2017

Integr Mater Manuf Innov

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A computational framework is proposed that enables the integration of experimental and computational data, a variety of user-selected models, and a computer algorithm to direct a design optimization. To demonstrate this framework, a sample design of a ternary Ni-Al-Cr alloy with a high work-to-necking ratio is presented. This design example illustrates how CALPHAD phase-based, composition and temperature-dependent phase equilibria calculations and precipitation models are coupled with models for elastic and plastic deformation to calculate the stress-strain curves. A genetic algorithm then directs the search within a specific set of composition and processing constraints for the ideal composition and processing profile to optimize the mechanical properties. The initial demonstration of the framework provides a potential solution to initiate the material design process in a large space of composition and processing conditions. This framework can also be used in similar material systems or adapted for other material classes.Keywords Ni-based superalloy · Integrated computational materials engineering · Genetic algorithm · Material design

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“…These data sets were consistent, plausible and complete field data coming from various power plants located all over the world and they have been acquired by own on site measurements, have been provided by operators (on request) or have been published as part of other research works [103,202,203]. In summary means that, the data using coming from:…”

Section: Basis For Comparisonmentioning

confidence: 99%

“…All three boilers listed in Table 30 based on the tangential-fired concept and have been designed by Combustion Engineering Company (USA) 30 . In addition, the fuels used are not very far apart in terms of quality and thus these other two plants should be capable for 28 Corrected to 6 % O 2 29 Data based on the work of Zhou et al [203]. 30 Since 2000 purchased by Alstom.…”

Section: Equation (Vi-13)) On the Basis Of The Assumptions Made In Cmentioning

confidence: 99%

Predictions of NOx emissions in pulverized coal combustion.

Hachenberg

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Modeling and optimization of the NOx emission characteristics of a tangentially fired boiler with artificial neural networks

Cited by 144 publications

References 34 publications

Effect of the Reburning Zone Stoichiometry on the Nox Concentration at the Three-Stage Combustion of Pulverized Coal

Effect of the Reburning Zone Stoichiometry on the Nox Concentration at the Three-Stage Combustion of Pulverized Coal

A Computational Framework for Material Design

Predictions of NOx emissions in pulverized coal combustion.

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