Preliminary Investigation of the Performance of an Engine Equipped with an Advanced Axial Turbocharger Turbine
Open Access
- 23 October 2020
- journal article
- research article
- Published by MDPI AG in Applied Sciences
- Vol. 10 (21), 7452
- https://doi.org/10.3390/app10217452
Abstract
Stringent emission regulations and increased demand for improved fuel economy have called for advanced turbo technologies in automotive engines. The use of turbochargers on smaller engines is one such concept, but they are limited by a time delay in reaching the required boost during transient operation. The amount of turbocharger lag plays a key role in the driver’s perceived quality of a passenger vehicle’s engine response. This paper investigates an alternative method to the conventional design of a turbocharger turbine to improve the transient response of a passenger vehicle. The investigation utilises the Ford Eco-Boost 1.6 L petrol engine, an established production engine, equipped with a turbocharger of similar performance to the GT1548 produced by Honeywell. The commercially available Ricardo WAVE was used to model the engine. Comparing the steady-state performance showed that the axial turbine provides higher efficiencies at all operating conditions of an engine. The transient case demonstrated an improved transient response at all operating conditions of the engine. The study concluded that, by designing a similar sized axial turbine, the mass moment of inertia can be reduced by 12.64% and transient response can be improved on average by 11.76%, with a maximum of 21.05% improvement. This study provides encouragement for the wider application of this turbine type to vehicles operating on dynamic driving cycles such as passenger vehicles, light commercial vehicles, and certain off-road applications.This publication has 9 references indexed in Scilit:
- Turbocharger Axial Turbines for High Transient Response, Part 2: Genetic Algorithm Development for Axial Turbine OptimisationApplied Sciences, 2019
- Turbocharger Axial Turbines for High Transient Response, Part 1: A Preliminary Design MethodologyApplied Sciences, 2019
- Conceptual Design of a Variable Geometry, Axial Flow Turbocharger TurbineSAE International Journal of Advances and Current Practices in Mobility, 2017
- Simulation based study on improving the transient response quality of turbocharged diesel enginesJournal of Quality in Maintenance Engineering, 2017
- Scalable turbocharger performance maps for dynamic state-based engine modelsInternational Journal of Engine Research, 2016
- On Mixed Flow Turbines for Automotive Turbocharger ApplicationsInternational Journal of Rotating Machinery, 2012
- Scalable Component-Based Modeling for Optimizing Engines with Supercharging, E-Boost and Turbocompound ConceptsSAE International Journal of Engines, 2012
- New scaling method for compressor maps using average infinitesimal stageChinese Journal of Mechanical Engineering, 2007
- Design of a Highly Loaded Mixed Flow TurbineProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 1992