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Published in: Arabian Journal for Science and Engineering 3/2021

03-01-2021 | Research Article-Mechanical Engineering

A Transient Model of a Variable Geometry Turbocharger Turbine Using a Passive Actuator

Authors: Irfan Bahiuddin, Saiful Amri Mazlan, Fitrian Imaduddin, Nobuhiko Yamasaki, Ubaidillah

Published in: Arabian Journal for Science and Engineering | Issue 3/2021

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Abstract

The highly pulsated flow output of an engine causes a nonlinear dynamic behavior of a variable geometry turbocharger (VGT). A method, namely active control turbocharger with a passive actuator, was previously developed to recover more energy than the steady-state-based conventional methods. An accurate transient model is required to optimize and improve the control system performance. This paper focuses on the formulation of the unified control-oriented model of the VGT turbine and passive actuator. The bond graph framework is utilized to build a unified system consisting of three principal parts, which are the VGT turbine, the intake air path, and the passive actuator. The simulation results were then benchmarked with the experimental data by varying two tune-able parameters of the actuator. The model has shown agreeable results showing a similar pattern while being changed from one to another condition with the errors of less than 6.5% of cycle-averaged power for PCT cases. In summary, the model has shown its capability to replicate the VGT system behavior with the passive actuator and its possibility to be applied in the optimization process of the system performance.

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Metadata
Title
A Transient Model of a Variable Geometry Turbocharger Turbine Using a Passive Actuator
Authors
Irfan Bahiuddin
Saiful Amri Mazlan
Fitrian Imaduddin
Nobuhiko Yamasaki
Ubaidillah
Publication date
03-01-2021
Publisher
Springer Berlin Heidelberg
Published in
Arabian Journal for Science and Engineering / Issue 3/2021
Print ISSN: 2193-567X
Electronic ISSN: 2191-4281
DOI
https://doi.org/10.1007/s13369-020-05158-2

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