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Turbocharger performance simulation with optimized 1D model

journal contribution
posted on 02.10.2012, 15:00 by Xiaoyang Gong, Rui Chen
Turbocharging technique has played a critical role not only for improving automotive engine performance, but also for reducing fuel consumption and exhaust emissions both in Spark Ignition and Compression Ignition engines. In the research described in this paper, a 1D centrifugal compressor model has been developed for simulating turbocharger flow and performance. The model takes into account energy conservation and transfer which includes the losses determined from the compressor geometry. The losses including incident loss, friction loss, clearance loss, backward loss and volute loss were simulated by the thermodynamics model, rather than from the characteristic performance curves obtained experimentally. The proposed model was validated against experimental data and it showed simulating and experimental results are in very good agreement at three different rotational speeds, in particular near the surge line, though the deviation begins to increase as mass flow rate goes up. With current results, it has suggested the proposal is suitable for predicting the compressor performance curves such as outlet pressure, efficiency and losses for any centrifugal compressor. In addition, surge line obtained from the simulation result can be used to define stable operation range.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

GONG, X. and CHEN, R., 2012. Turbocharger performance simulation with optimized 1D model. Advanced Materials Research, v.516-517 pp.692-708.

Publisher

© Trans Tech Publications Inc.

Version

NA (Not Applicable or Unknown)

Publication date

2012

Notes

This article is closed access.

ISBN

9783037854150

ISSN

1022-6680

Language

en

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