Particle size and particle velocity in a pressurised pulverised coal flame

被引：0

作者：

Fielenbach, C ^{[1
]}

Ayar, A ^{[1
]}

Hecken, M ^{[1
]}

Holfeld, T ^{[1
]}

von Petery, C ^{[1
]}

Renz, U ^{[1
]}

机构：

[1] Univ Aachen, Rhein Westfal TH Aachen, Inst Heat Transfer & Air Conditioning, Aachen, Germany

来源：

COAL COMBUSTION FACING THE 21ST CENTURY | 2003年

关键词：

pressurised pulverised coal combustion ( PPCC); laser doppler anemometry; phase doppler anemometry; numerical simulation; particle size;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Combined cycles with pressurised pulverised coal combustion have a high net efficiency potential. At RWTH Aachen University a combustor has been built up in order to examine the pressurised pulverised coal combustion (PPCC) technique based on an experimental, theoretical and computational analysis. The test facility can be operated with a maximum thermal power of 400 kW and pressures up to 10 bars. It is designed with emphasis on optimum accessibility for optical and probe measuring systems. One of the main problems operating a gas turbine with PPCC technology is caused by fine particles and evaporated mineral matter in the flue gas damaging turbine blades by corrosion and erosion. The origin of 9 the small particles is not thoroughly understood yet. The aim of the investigations presented is a better understanding of the coal particle history within flames and the flow field near the burner in dependence on flame settings, types of coal, coal grindings and burner geometries.

引用

页码：175 / 180

页数：6

共 8 条

[1] [Anonymous], LASER DOPPLER PHASE
[2] *FLUENT INC, 2001, FLUENT US MAN
[3] Gorner K., 1991, Technische Verbrennungssysteme
[4] RENZ U, 2000, 5 EUR C IND FURN BOI
[5] Ruck B., 1990, LASERMETHODEN STROMU
[6] Smoot L, 1993, Fundamentals of coal combustion for clean and efficient use
[7] Weber E., 1993, VGB Kraftwerkstechnik (German Edition), V73, P602
[8] WEBER R, 1990, INT J HEAT FLUID FLO, V11

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