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Title: Variable Geometry Turbocharger Technologies for Exhaust Energy Recovery and Boosting-A Review
Authors: Feneley, A
Pesiridis, A
Mahmoudzadeh Andwari, A
Keywords: Turbocharging;Variable geometry turbine;Variable geometry compressor;Variable nozzle turbine;Variable geometry turbocharger;Automotive turbocharging
Issue Date: 2016
Publisher: Elsevier
Citation: Renewable and Sustainable Energy Reviews,(2016)
Abstract: As emissions regulations become increasingly demanding, higher power density engine (downsized/downspeeded and increasingly right-sized) requirements are driving the development of turbocharging systems. Variable geometry turbocharging (VGT) at its most basic level is the first step up from standard fixed geometry turbocharger systems. Currently, VGTs offer significant alternative options or complementarity vis-à-vis more advanced turbocharging options. This review details the range of prominent variable geometry technologies that are commercially available or openly under development, for both turbines and compressors and discusses the relative merits of each. Along with prominent diesel-engine boosting systems, attention is given to the control schemes employed and the actuation systems required to operate variable geometry devices, and the specific challenges associated with turbines designed for gasoline engines.
ISSN: 1364-0321
Appears in Collections:Dept of Mechanical and Aerospace Engineering Research Papers

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