CFD modelling of waste heat recovery boiler

被引:27
作者
Manickam, M [1 ]
Schwarz, MP
Perry, J
机构
[1] CSIRO, Div Minerals, Inst Minerals Energy & Construct, Clayton, Vic 3168, Australia
[2] CRC, New Technol Power Generat Low Rank Coal, Mulgrave, Vic, Australia
关键词
CFD modelling; gas combustion; particle tracking; char combustion; eddy break-up modelling;
D O I
10.1016/S0307-904X(98)10020-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A model has been developed of a waste heat recovery boiler utilising typical plant off-gas consisting of both gaseous and particulate combustibles. The model allows the calculation of temperatures of gas and particles within the boiler and hence the likelihood of deposition onto the boiler walls. The model was applied to a typical waste heat boiler geometry, and a typical off-gas composition including a mixture of combustibles (char) and non-combustible particulates. Mixing in the burner region, char burnout and char particle temperature were analysed using the model. Combustion stability was also studied using a simple Eddy break-up model which accounts for combustion kinetics and the results compared with a Mixed-is-burnt model. (C) 1998 Elsevier Science Inc. All rights reserved.
引用
收藏
页码:823 / 840
页数:18
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