An Experimental Investigation of Supersonic Combustion of Mildly Cracked N-Dodecane

doi:10.1080/00102202.2022.2135096

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	An Experimental Investigation of Supersonic Combustion of Mildly Cracked N-Dodecane
	Cui NF(崔乃夫)1; Rao W(饶威)2; Li YJ(李昱君)1,3; Zhang TC(张泰昌)1,3; Fan XJ(范学军)1,3
刊名	COMBUSTION SCIENCE AND TECHNOLOGY
	2022-10-16
页码	20
关键词	Mildly cracked n-dodecane supersonic combustion regenerative cooling
ISSN号	0010-2202
DOI	10.1080/00102202.2022.2135096
通讯作者	Zhang, Taichang(taichang@imech.ac.cn)
英文摘要	In this paper, a novel two-stage hydrocarbon fuel heating and delivery system was used to more accurately simulate the state of fuel in the cooling channel of the regenerative cooling engine. Mildly cracked (<10%) experiments of n-dodecane were conducted by using the new heating system and pyrolysis products were sampled and analyzed. The ignition delay time and laminar flame speed of the cracked products were different from those of the surrogate gas fuel. When the temperature is 1100 K, the ignition delay time of the cracked products are similar to 50% higher than that of surrogate gas fuel. The laminar flame speed of the cracked products is about 30% lower than that of surrogate gas fuel at the equivalence ratio of 1.0. The supersonic combustion experiments of mildly cracked and different equivalence ratios n-dodecane were also employed at Mach number 3.0 of the isolator entrance, with total temperature similar to 1550 K and total pressure similar to 1.5 MPa. The static pressure along the axis of combustor was measured, while the velocity and temperature of the airflow at the exit of combustor were also measured by the tunable diode laser absorption spectroscopy (TDLAS). The distributions of airflow velocity, static temperature, and total temperature along the combustor at different conditions were analyzed through a one-dimensional analysis method. The deviations of velocity and temperature of the airflow are less than 4% and -6%, respectively, which indicates the calculation is in great accordance with the TDLAS detections. The experimental data will be helpful for validating the simulation of supersonic combustion, and studying the influence of mildly cracked fuel on supersonic combustion characteristics.
分类号	Q3
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100] ; Science and Technology Innovation Special Zone Project ; National Key Project[GJXM92579]
WOS关键词	KEROSENE ; ETHYLENE ; MIXTURE ; HYDROGEN ; METHANE
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering
语种	英语
WOS记录号	WOS:000869241500001
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; Science and Technology Innovation Special Zone Project ; National Key Project
其他责任者	Zhang, Taichang
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90418]
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.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 2.Space Engn Univ, Dept Aerosp Sci & Technol, State Key Lab Laser Prop & Applicat, Beijing, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Cui NF,Rao W,Li YJ,et al. An Experimental Investigation of Supersonic Combustion of Mildly Cracked N-Dodecane[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2022:20.
APA	崔乃夫,饶威,李昱君,张泰昌,&范学军.(2022).An Experimental Investigation of Supersonic Combustion of Mildly Cracked N-Dodecane.COMBUSTION SCIENCE AND TECHNOLOGY,20.
MLA	崔乃夫,et al."An Experimental Investigation of Supersonic Combustion of Mildly Cracked N-Dodecane".COMBUSTION SCIENCE AND TECHNOLOGY (2022):20.