Experimental analysis on the performance of a turbocharger compressor in the unstable operating region and close to the surge limit

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• 作者：Silvia Marelli ; Chiara Carraro ; Giulio Marmorato ; Giorgio Zamboni ; Massimo Capobianco
• 关键词：Turbocharging ; Centrifugal compressor ; Internal combustion engine ; Unstable zone ; Surge ; Experimental
• 刊名：Experimental Thermal and Fluid Science
• 出版年：February, 2014
• 年：2014
• 卷：53
• 期：Complete
• 页码：154-160
• 全文大小：1114 K

文摘

To make simulation models able to accurately predict engine performance, a better understanding of compressor behavior over an extended range can be accomplished by using a specialized test facility and measuring equipment. Besides, the correct surge line position is another important aspect to be considered to optimize engine-turbocharger matching calculation. In the paper the results of an experimental investigation developed on a turbocharger compressor for heavy duty vehicle application is presented. The study was focused on the definition of surge line position adopting different methods and on the evaluation of compressor performance over an extended range, taking into account compressor behavior both in the stable and unstable operating region.