Parametric Studies of Pipe Diffuser on Performance of a Highly Loaded Centrifugal Compressor

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	Parametric Studies of Pipe Diffuser on Performance of a Highly Loaded Centrifugal Compressor
	Han, Ge 1,2; Lu, Xingen 1; Zhao, Shengfeng 1; Yang, Chengwu 1,2; Zhu, Junqiang 1
刊名	JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME
	2014-12-01
卷号	136 期号:12
英文摘要	Pipe diffusers with several different geometries were designed for a highly loaded centrifugal compressor originally using a wedge diffuser. Parametric studies on the effect of pipe diffuser performance of a highly loaded centrifugal compressor by varying pipe diffuser inlet-to-impeller exit radius ratio, throat length, divergence angle, and throat area on centrifugal compressor performance were performed using a state-of-the-art multi-block flow solver. An optimum design of pipe diffuser was obtained from the parametric study, and the numerical results indicate that this pipe diffuser has remarkable advantageous effects on the compressor performance. Furthermore, a detailed comparison of flow visualization between the pipe diffuser and the wedge diffuser was conducted to identify the physical mechanism that account for the beneficial effects of the pipe diffuser on the performance and stability of the compressor. It was found that the performance enhancement afforded by the pipe diffuser is a result of the unique diffuse inlet flow pattern. Alleviating flow distortion in the diffuser inlet and reducing the possibility of a flow separation in discrete passages are the physical mechanisms responsible for improving the highly loaded centrifugal compressor performance.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Mechanical
研究领域[WOS]	Engineering
收录类别	SCI
语种	英语
WOS记录号	WOS:000344732000017
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106010]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Light Duty Gas Turbine, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Han, Ge,Lu, Xingen,Zhao, Shengfeng,et al. Parametric Studies of Pipe Diffuser on Performance of a Highly Loaded Centrifugal Compressor[J]. JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME,2014,136(12).
APA	Han, Ge,Lu, Xingen,Zhao, Shengfeng,Yang, Chengwu,&Zhu, Junqiang.(2014).Parametric Studies of Pipe Diffuser on Performance of a Highly Loaded Centrifugal Compressor.JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME,136(12).
MLA	Han, Ge,et al."Parametric Studies of Pipe Diffuser on Performance of a Highly Loaded Centrifugal Compressor".JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME 136.12(2014).