Experimental investigation of stabilization and emission characteristics of ammonia/air premixed flames in a swirl combustor

被引：311

作者：

Hayakawa, Akihiro ^{[1
]}

Arakawa, Yoshiyuki ^{[1
]}

Mimoto, Rentaro ^{[1
]}

Somarathne, K. D. Kunkuma A. ^{[1
]}

Kudo, Taku ^{[1
]}

Kobayashi, Hideaki ^{[1
]}

机构：

[1] Tohoku Univ, Inst Fluid Sci, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 19期

基金：

日本科学技术振兴机构;

关键词：

Ammonia; Gas turbine; Swirling flow; Flame stabilization; Emission; LAMINAR BURNING VELOCITY; MARKSTEIN LENGTH; OXIDATION; HYDROGEN;

D O I：

10.1016/j.ijhydene.2017.01.046

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ammonia is a possible candidate for use as a hydrogen energy carrier as well as a carbon free fuel. In this study, flame stability and emission characteristics of swirl stabilized ammonia/air premixed flames were experimentally investigated. Results showed that ammonia/air premixed flame could be stabilized for various equivalence ratios and inlet flow velocity conditions in a swirl burner without any additives to enhance the reaction of ammonia even though the laminar burning velocity of ammonia is very slow. The lean and rich blowoff limits were found to be close to the flammability limits of the ammonia flame. In addition, emission characteristics were investigated using an FTIR gas analyzer. The NO concentration decreased and ammonia concentration increased under rich conditions. Moreover, it was found that there is an equivalence ratio in rich condition in which NO and ammonia emission are in the same order. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：14010 / 14018

页数：9

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