Clean Air

A CFD-based combustion model coupled with a NOx postprocessing model has been applied to simulate a practical-scale, turbulent nonpremixed natural gas flame studied experimentally in a 3 MW furnace at the International Flame Research Foundation (Michelfelder and Lowes, 1974). The combustion is modeled using a radiative flamelet combustion (RFC) model (Ma et al., 2002), which is an extension of the mixedness-reactedness flamelet combustion model of Bradley et al, (1990) and the eddy-dissipation combustion (EDC) model of Magnussen and Hjertager (1976). To account for the radiation heat transfer, a comprehensive radiation model, namely, the discrete transfer method of Lockwood and Shah (1980), has been introduced into the combustion code. The turbulence is represented by the k-ε; model with the standard values of the constants and variants of Cε1. The predicted velocity, temperature, and major species concentration fields obtained from both combustion models have been used to calculate nitric oxide (NO) formation in the furnace. The computational results are compared with experimental data for gas temperature, oxygen, and NO concentrations. The EDC model is unable to capture the effects of finite-rate reactions and hence fails to predict the flame structure in the near burner region causing the overpredictions of NO concentrations in this region. The RFC model reproduces the overall structure of the flame reasonably well and shows better agreement of the predicted NO concentrations with measurements.

S. K. Sangha

T. Mahmud

C. Y. Ma

PREDICTION OF NOx FORMATION IN A PRACTICAL-SCALE, NONPREMIXED TURBULENT FLAME USING EDDY DISSIPATION AND RADIATIVE FLAMELET COMBUSTION MODELS

实际尺度非预混湍流火焰中NOx生成的预测：采用涡耗散和辐射火焰面燃烧模型

Coconut and cashew nut shells are some of the biomass wastes typically available in many tropical countries. As renewable resources, they are eligible as important green sources for energy generati ...

Alberto Júlio Tsamba

Weihong Yang

Wlodzimierz Blasiak

Modelling Individual Evolved Gas Yields from Cashew Nut and Coconut Shells Pyrolysis

腰果壳和椰子壳热解过程中个体演生气体产率的建模

A thermodynamic analysis of high temperature agent gasification (HTAG) using biomass and air

Anna Ponzio

Wlodzmierz Blasiak

生物质与空气高温气化（HTAG）的热力学分析

Publication Information	Publisher: Taylor and Francis Ltd.，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2005，Proportion of original research papers: ，Self Citation Rate:， Gold OA Rate:

Clean Air

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PREDICTION OF NOx FORMATION IN A PRACTICAL-SCALE, NONPREMIXED TURBULENT FLAME USING EDDY DISSIPATION AND RADIATIVE FLAMELET COMBUSTION MODELS

Modelling Individual Evolved Gas Yields from Cashew Nut and Coconut Shells Pyrolysis

A thermodynamic analysis of high temperature agent gasification (HTAG) using biomass and air

Modelling Individual Evolved Gas Yields from Cashew Nut and Coconut Shells Pyrolysis

A thermodynamic analysis of high temperature agent gasification (HTAG) using biomass and air

A thermodynamic analysis of high temperature agent gasification (HTAG) using biomass and air

A thermodynamic analysis of high temperature agent gasification (HTAG) using biomass and air

A thermodynamic analysis of high temperature agent gasification (HTAG) using biomass and air

A thermodynamic analysis of high temperature agent gasification (HTAG) using biomass and air

A thermodynamic analysis of high temperature agent gasification (HTAG) using biomass and air