On-Engine Measurement of Turbocharger Surge Limit

Experimental study of the effects of repetitive surge condition on turbocharger performance

When the mass flow rate through the compressor is reduced at a constant pressure ratio, mass flow rate will drop to an extent that the complete reversal of flow and surge occurs. Recently many research focuses on turbocharger surge, however, there are not enough investigation on the effect of surge on the performance of the turbocharger. The aim of the paper is to investigate the effect of repe...

Numerical Investigation of the Effect of Cooled EGR on Turbocharger HCCI Engine Performance Fueled with Methane

Scalable turbocharger performance maps for dynamic state-based engine models

Adapting turbocharger performance maps to a form suitable for dynamic simulations is challenging for the following reasons: (1) the amount of available data is typically limited, (2) data are typically not provided for the entire operating range of the compressor and turbine and (3) the performance data are non-linear. To overcome these challenges, curve fits are typically generated using the p...

New Physics-Based Turbocharger Data-Maps Extrapolation Algorithms: Validation on a Spark-Ignited Engine

Objectives in terms of pollutant emissions and fuel consumption reduction, as well as development costs and time to market reduction, has led car manufacturers to use more and more system simulation. However, among all the fields in which it has enabled to achieve these goals, the control development stage is one of those, in which major improvements can still be achieved. In this context and w...

Fault Diagnosis and Isolation of the Marine Diesel Engine Turbocharger System

Due to the complexity of the ship's systems early detection and isolation of the faults is of the essential importance for realization of a safe operation and necessary level of functionality. In this paper the main objectives of fault diagnosis are presented, such as detection, isolation and faults analysis. By simulating the appropriate faults in the turbocharger of the marine two stroke dies...