Effect of swirl and number of swirler vanes on combustion characteristics of methane inverse diffusion flame

被引：17

作者：

Patel, Vipul ^{[1
]}

Shah, Rupesh ^{[1
]}

机构：

[1] Sardar Vallabhbhai Natl Inst Technol, Dept Mech Engn, Surat 395007, India

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2019年 / 33卷 / 04期

关键词：

Flame structure; Flame temperature; Pollutant emission; Swirling inverse diffusion flame; HEAT-TRANSFER CHARACTERISTICS; EMISSION CHARACTERISTICS; TEMPERATURE; APPEARANCE; BEHAVIORS; BACKSTEP; FLOWS; JET;

D O I：

10.1007/s12206-019-0345-7

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An experimental study is performed to explore the effect of swirl and number of swirler vanes on combustion characteristics of methane inverse diffusion flame (IDF) using 30(0) swirler. Influence of varying the number of vanes (4, 6 and 8) on structure and appearance of IDFs is studied. Swirling IDFs are observed with dual flame structure. Length of both IDFs depends on Reynolds number (Re-air) and equivalence ratio (phi). Temperature measured along the centerline in swirling IDF is greater than non-swirling IDF. Radial temperature distribution shows that the swirling effect intensify combustion process. Effect of phi on CO emission revels that non-swirling IDFs emit more CO compared to swirling IDFs. The lowest NOx emission is observed in swirling IDFs with 6 vanes. Study indicates that the IDFs with swirl results in low emission of CO and NOx.

引用

页码：1947 / 1958

页数：12

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