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	An experimental investigation of supersonic combustion of cracked JP-10
	Cui, Naifu4; Rao, Wei3; Li, Yujun2,4; Zhu, Yinhai1; Zhang, Taichang2,4; Fan, Xuejun2,4
刊名	ACTA ASTRONAUTICA
	2023-02-01
卷号	203页码:329-340
关键词	Cracking JP-10 Supersonic combustion Regenerative cooling
ISSN号	0094-5765
DOI	10.1016/j.actaastro.2022.12.002
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. Different cracking degrees (9-23%) experiments of JP-10 were conducted by using the new heating system, and cracked products were sampled and analyzed. The ignition delay time of high cracking degree product is shorter than that of low cracking degree product. The laminar flame speed of JP-10 and low cracking degree products are similar, the laminar flame speed of high cracking degree products is 32% faster than that of JP-10 when the equivalence ratio is 1.0, and the laminar flame speed of surrogate gas fuel is two times faster than that of JP-10. The supersonic combustion experiments of JP-10 with different cracking degrees and equivalence ratios were also employed at Mach number 3.0 of the isolator entrance, with total temperature-1550 K, total pressure-1.5 MPa, as well as at Mach number 2.5 of the isolator entrance, with total temperature-1250 K, total pressure-0.78 MPa, respectively. 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, total temperature and static temperature along the combustor with different conditions were analyzed through a one-dimensional analysis method. The deviations of velocity and temperature of the airflow are less than-4% and-5% for Mach number 3.0, and less than 9% and 4% for Mach number 2.5, which indicates the calculations are in accordance with the TDLAS detections to some extent at Mach 3.0. Specially, supersonic combustion of JP-10 with different cracking degree at the same fuel tem-perature and equivalence ratio were obtained, which benefits studying the influence of different cracking degrees fuel on supersonic combustion characteristics. Furthermore, the experimental data will be helpful for validating the simulation of supersonic combustion.
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	CATALYTIC CRACKING ; THERMAL-CRACKING ; KEROSENE ; INJECTION ; PERFORMANCE ; FUEL
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000907086100001
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; Science and Technology Innovation Special Zone Project ; National Key Project
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/91374]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Zhang, Taichang
作者单位	1.Tsinghua Univ, Dept Energy & Power Engn, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Space Engn Univ, Dept Aerosp Sci & Technol, State Key Lab Laser Prop & Applicat, Beijing 101416, Peoples R China 4.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Cui, Naifu,Rao, Wei,Li, Yujun,et al. An experimental investigation of supersonic combustion of cracked JP-10[J]. ACTA ASTRONAUTICA,2023,203:329-340.
APA	Cui, Naifu,Rao, Wei,Li, Yujun,Zhu, Yinhai,Zhang, Taichang,&Fan, Xuejun.(2023).An experimental investigation of supersonic combustion of cracked JP-10.ACTA ASTRONAUTICA,203,329-340.
MLA	Cui, Naifu,et al."An experimental investigation of supersonic combustion of cracked JP-10".ACTA ASTRONAUTICA 203(2023):329-340.

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