Journal
ENERGY CONVERSION AND MANAGEMENT
Volume 49, Issue 12, Pages 3729-3745Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2008.06.031
Keywords
Internal combustion engines; Turbochargers; Radial turbines; Engine modelling; Intake/exhaust processes
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Funding
- Renault SA
- Generalitat Valenciana [GV06/057-20060547]
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The paper presents a model of fixed and variable geometry turbines. The aim of this model is to provide an efficient boundary condition to model turbocharged internal combustion engines with zero- and one-dimensional gas dynamic codes. The model is based from its very conception on the measured characteristics of the turbine. Nevertheless, it is capable of extrapolating operating conditions that differ from those included in the turbine maps, since the engines usually work within these zones. The presented model has been implemented in a one-dimensional gas dynamic code and has been used to calculate unsteady operating conditions for several turbines. The results obtained have been compared with success against pressure-time histories measured upstream and downstream of the turbine during on-engine operation. (c) 2008 Elsevier Ltd. All rights reserved.
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