Prediction of Surge in a Turbocharger Compression System vs. Measurements

Event
SAE 2011 Noise and Vibration Conference and Exhibition
Authors Abstract
Content
The unsteady surge behavior of a turbocharger compression system is studied computationally by employing a one-dimensional engine simulation code. The system modeled represents a new turbocharger test stand consisting of a compressor inlet duct breathing from ambient, a centrifugal compressor, an exit duct connected to an adjustable-volume plenum, followed by another duct which incorporates a control valve and an orifice flow meter before exhausting to ambient. Characteristics of mild and deep surge are captured as the mass flow rate is reduced below the stability limit, including discrete sound peaks at low frequencies along with their amplitudes in the compressor (downstream) duct and plenum. The predictions are then compared with the experimental results obtained from the cold stand placed in a hemi-anechoic room. The computational results are shown to be capable of reproducing a number of key experimental observations, including the details of low-frequency pressure fluctuations in the compressor ducts and plenum; and the transition from stable operation to oscillating mild surge.
Meta TagsDetails
DOI
https://doi.org/10.4271/2011-01-1527
Pages
12
Citation
Dehner, R., Selamet, A., Keller, P., and Becker, M., "Prediction of Surge in a Turbocharger Compression System vs. Measurements," SAE Int. J. Engines. 4(2):2181-2192, 2011, https://doi.org/10.4271/2011-01-1527.
Additional Details
Publisher
Published
May 17, 2011
Product Code
2011-01-1527
Content Type
Journal Article
Language
English