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|Title: ||Prediction and measurement of air intake noise in a turbocharged petrol engine during surge events|
|Authors: ||Pai, Ajith V.|
Walsh, Stephen J.
|Issue Date: ||2013|
|Publisher: ||© Institute of Acoustics|
|Citation: ||PAI, A.V. ... et al, 2013. Prediction and measurement of air intake noise in a turbocharged petrol engine during surge events. Acoustics 2013, East Midlands Conference Centre, Nottingham, UK, May 13th 2013. Proceedings of the Institute of Acoustics, 35 (1), pp.150-157.|
|Abstract: ||Turbochargers are introduced in petrol engines to facilitate downsizing and hence to reduce
emissions and fuel consumption. However, increased noise is the side effect of this introduction.
The noise generation is assumed to be due to the operation of turbocharger very close to the surge
zone of the compressor map. For example, the compressor map is typically measured under static
lab test conditions and may be different from the dynamic intake system during engine operation.
The aim of the paper is to outline the methods used by the authors to predict and measure the
noise generation. The static pressures predicted on various locations of intake system, such as
upstream and downstream of the compressor, are processed in order to obtain the sound pressure
level in both the frequency and the time domains. An experimental turbocharger rig is designed in
order to verify the intake system dynamics during compressor surge and to further analyse and
understand the noise generation mechanism.|
|Description: ||This conference paper was presented at Acoustics 2013, Annual Spring Conference, at East Midlands Conference Centre, Nottingham.|
|Version: ||Accepted for publication|
|Publisher Link: ||http://www.ioa.org.uk/publications/|
|Appears in Collections:||Published Articles (Aeronautical and Automotive Engineering)|
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