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Precracked Ammonia as an Alternative Fuel for Micro Gas Turbine Combustor

文献类型：期刊论文

作者Chen ZQ(陈志强)3,4; Yuan T(袁涛)4; Fan XJ(范学军)2,4; Chen, Longwei1; Wu K(吴坤)4
刊名ENERGY & FUELS
出版日期2025-05-29
卷号39期号:23页码:11413-11423
ISSN号0887-0624
DOI10.1021/acs.energyfuels.5c00752
通讯作者Wu, Kun(wukun@imech.ac.cn)
英文摘要To develop ammonia-fueled micro gas turbines, an industrial-grade full-size annular combustion chamber and a gas injector specifically designed for NH3 combustion were manufactured using 3D printing. Precracking NH3 is proposed as an ideal solution to overcome the fuel's low flammability. This study experimentally and numerically investigated the combustion characteristics of precracked NH3 in the annular combustion chamber. The combustion zone maintained an equivalence ratio of 0.54 with a 0.5 MPa pressure. Experimental results revealed that even at 838 K air temperature, 20 wt % precracked NH3 failed to sustain stable combustion. However, stable combustion was achieved when precracked degree reached 30 wt % with 560 K air and 40 wt % with ambient-temperature air. To match CH4's ignition delay time and laminar burning velocity, the required NH3 precracked degrees were approximately 7 and 35%, respectively. The tests achieved 94.5% combustion efficiency with minimal NOx emissions of 376 ppm, though emissions increased sharply with rising initial air temperatures. Numerical analysis indicates that NO generation strongly correlates with N and HNO radicals, while initial air temperature exerts greater influence than the degree of NH3 precracked on NO formation. The equivalence ratio in the pilot zone exerts a profound influence on the NO emission concentrations. These findings provide valuable guidance for the stable operation of NH3-fueled gas turbines, thereby facilitating relevant research.
分类号二类/Q1
WOS关键词LAMINAR FLAME PROPAGATION ; PREMIXED COMBUSTION ; EMISSION CHARACTERISTICS ; MIXTURES ; PRESSURE ; NOX
资助项目National Natural Science Foundation of China[12402312] ; National Natural Science Foundation of China[T2341001] ; Chinese Academy of Sciences Project for Young Scientists in Basic Research[YSBR-107] ; Independent project of the Energy Research Institute of Hefei Comprehensive National Science Center (Anhui Energy Laboratory)[22KZS304]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:001499965000001
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences Project for Young Scientists in Basic Research ; Independent project of the Energy Research Institute of Hefei Comprehensive National Science Center (Anhui Energy Laboratory)
其他责任者吴坤
源URL[http://dspace.imech.ac.cn/handle/311007/101733]  
专题力学研究所_高温气体动力学国家重点实验室
作者单位1.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230026, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
3.Hefei Zhongke Chongming Technol Co Ltd, Hefei 230026, Peoples R China;
4.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Chen ZQ,Yuan T,Fan XJ,et al. Precracked Ammonia as an Alternative Fuel for Micro Gas Turbine Combustor[J]. ENERGY & FUELS,2025,39(23):11413-11423.
APA 陈志强,袁涛,范学军,Chen, Longwei,&吴坤.(2025).Precracked Ammonia as an Alternative Fuel for Micro Gas Turbine Combustor.ENERGY & FUELS,39(23),11413-11423.
MLA 陈志强,et al."Precracked Ammonia as an Alternative Fuel for Micro Gas Turbine Combustor".ENERGY & FUELS 39.23(2025):11413-11423.

入库方式： OAI收割

来源：力学研究所

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