An Evaluation of 1D Design Methods for the Off-Design Performance Prediction of Automotive Turbocharger Compressors

Peter Harley, Stephen Spence, Dietmar Filsinger, Michael Dietrich, Juliana Early

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Several one-dimensional design methods have been used to predict the off-design performance of three modern centrifugal compressors for automotive turbocharging. The three methods used are single-zone, two-zone, and a more recent statistical method. The predicted results from each method are compared against empirical data taken from standard hot gas stand tests for each turbocharger. Each of the automotive turbochargers considered in this study have notably different geometries and are of varying application. Due to the non-adiabatic test conditions, the empirical data has been corrected for the effect of heat transfer to ensure comparability with the 1D models. Each method is evaluated for usability and accuracy in both pressure ratio and efficiency prediction. The paper presents an insight into the limitations of each of these models when applied to one-dimensional automotive turbocharger design, and proposes that a corrected single-zone modelling approach has the greatest potential for further development, whilst the statistical method could be immediately introduced to a design process where design variations are limited.
Original languageEnglish
Title of host publicationProceedings of ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
PublisherThe American Society of Mechanical Engineers (ASME)
Pages915-925
Number of pages11
Volume8
ISBN (Electronic)978-0-7918-4474-8
DOIs
Publication statusPublished - Jun 2012

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