CFD modeling and thermodynamic analysis of a concept of a MILD-OXY combustion large scale pulverized coal boiler

被引：49

作者：

Adamczyk, Wojciech P. ^{[1
]}

Bialecki, Ryszard A. ^{[1
]}

Ditaranto, Mario ^{[2
]}

Gladysz, Pawel ^{[1
]}

Haugen, Nils Erland L. ^{[2
]}

Katelbach-Wozniak, Anna ^{[1
]}

Klimanek, Adam ^{[1
]}

Sladek, Slawomir ^{[1
]}

Szlek, Andrzej ^{[1
]}

Wecel, Gabriel ^{[1
]}

机构：

[1] Silesian Tech Univ, Inst Thermal Technol, Konarskiego 22, PL-44100 Gliwice, Poland

[2] SINTEF Energi AS, Sem Saelands Vei 11, N-7034 Trondheim, Norway

来源：

ENERGY | 2017年 / 140卷

关键词：

Oxycombustion; MILD combustion; CFD model; Reduced oxygen demand; Reduced flue gas recycling ratio; FUEL COMBUSTION;

D O I：

10.1016/j.energy.2017.03.130

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A concept of a large scale pulverized coal boiler working in the oxycombustion mode has been proposed. The combustion chamber has been designed using the Moderate and Intensive Low-oxygen Dilution (MILD) combustion technology. By screening CFD solutions of several geometric configurations the best one has been selected, for which the dependence of the oxygen excess ratio and recirculation rate of the flue gases analyzed onto the efficiency of the combustion chamber has been investigated. The results of the CFD simulations have been then embedded into a process model of the entire plant. The preliminary simulations show the possibility of efficiency increase of more than 3% points. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：1305 / 1315

页数：11

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