OH-PLIF investigation of Y2O3-ZrO2 coating improving flame stability in a narrow channel

doi:10.1016/j.cej.2020.126708

GIEC OpenIR

	OH-PLIF investigation of Y2O3-ZrO2 coating improving flame stability in a narrow channel
	Li, Fan 1,2; Yang, Haolin2 ; Zhang, Jianqiao 2; Gu, Cheng 2; Huo, Jiepeng 2; Jiang, Liqiao2 ; Wang, Xiaohan2 ; Zhao, Daiqing2
	2021-02-01
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	405 页码:13
通讯作者	Yang, Haolin(yanghl@ms.giec.ac.cn) ; Zhao, Daiqing(zhaodq@ms.giec.ac.cn)
摘要	The chemical catalytic performance of functional ceramics materials of rare earth is of great technological and scientific significance to actively regulate the flame-wall interaction in high-temperature combustion. The premixed methane-air flames in a slot burner with different wall materials were characterized by OH-PLIF technique to gain an insight into the effects of heterogeneous chemistry at gas-solid interfaces on the flame characteristics. The 304STS wall coated with ZrO2 and Y2O3-ZrO2 respectively through atmospheric plasma spray were investigated at the wall temperatures of 473 K and 773 K in this paper. The flame stability was quantitatively analyzed through the dynamic flame morphology of OH-PLIF images. The absolute maximum OH intensities in the flame cores were extracted to investigate the effects of different gap distances, wall temperatures and surface materials. The characterization of chemical interactions between flame and wall was also carried out based on the spatial distribution of OH radicals near the wall. Lastly, the heterogeneous chemistry between the gas-phase radicals in flame with the electrophilic oxygen species on the surface of Y2O3-ZrO2 coating was discussed to reveal the dominant pathways of the reduction and re-oxidation of surface lattice oxygen. Results show that a marked improvement in combustion stability was observed with using Y2O3-ZrO2 coated walls compared to the uncoated 304STS walls under the same conditions. The maximum OH intensity in flame would increase with the decrease of channel gap at higher temperature due to the unique chemical promoting effect of Y2O3-ZrO2 coating. Overall, this work indicates that coating with rare earth composite metal oxides such as Y2O3-ZrO2 can potentially serve as an effective strategy for the optimization of combustion chambers.
关键词	Y2O3-ZrO2 coating OH-PLIF Dynamic flame morphology OH fluorescence intensity Chemical interaction
DOI	10.1016/j.cej.2020.126708
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51006109] ; National Natural Science Foundation of China[51336010] ; Guangzhou Scientific Planning Program[201903010019]
WOS研究方向	Engineering
项目资助者	National Natural Science Foundation of China ; Guangzhou Scientific Planning Program
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000621647100002
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/32737
专题	中国科学院广州能源研究所
通讯作者	Yang, Haolin; Zhao, Daiqing
作者单位	1.Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Nanjing 210016, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Li, Fan,Yang, Haolin,Zhang, Jianqiao,et al. OH-PLIF investigation of Y2O3-ZrO2 coating improving flame stability in a narrow channel[J]. CHEMICAL ENGINEERING JOURNAL,2021,405:13.
APA	Li, Fan.,Yang, Haolin.,Zhang, Jianqiao.,Gu, Cheng.,Huo, Jiepeng.,...&Zhao, Daiqing.(2021).OH-PLIF investigation of Y2O3-ZrO2 coating improving flame stability in a narrow channel.CHEMICAL ENGINEERING JOURNAL,405,13.
MLA	Li, Fan,et al."OH-PLIF investigation of Y2O3-ZrO2 coating improving flame stability in a narrow channel".CHEMICAL ENGINEERING JOURNAL 405(2021):13.