Evaluation of heat transfer effects in small turbochargers by theoretical model and its experimental validation

S Marelli, G Marmorato, M Capobianco - Energy, 2016 - Elsevier
In the last few years, the effect of diabatic test conditions on compressor performance maps
has been widely investigated leading some Authors to propose different correction models …

Steady state experimental characterization of a twin entry turbine under different admission conditions

V Usai, S Marelli - Energies, 2021 - mdpi.com
The increasingly restrictive limits on exhaust emissions of automotive internal combustion
engines imposed in recent years are pushing OEMs to seek new solutions to improve …

Incipient surge analysis in time and frequency domain for centrifugal compressors

P Silvestri, S Marelli… - … of Engineering for …, 2021 - asmedigitalcollection.asme.org
The use of centrifugal compressors has been increasing tremendously in the last decade as
they are a key component in the present energy scenario both in the modern internal …

Control-oriented compressor model with adiabatic efficiency extrapolation

X Llamas, L Eriksson - SAE International Journal of Engines, 2017 - JSTOR
Downsizing and turbocharging with single or multiple stages has been one of the main
solutions to decrease fuel consumption and harmful exhaust emissions, while kee** a …

Heat transfer effect on performance map of a turbocharger turbine for automotive application

S Marelli, S Gandolfi, M Capobianco - 2017 - sae.org
In the last few years, the effect of diabatic test conditions on compressor performance maps
has been widely investigated leading some Authors to propose different correction models …

Experimental thermal survey of automotive turbocharger

SS Alaviyoun, M Ziabasharhagh - International Journal of …, 2020 - journals.sagepub.com
Turbochargers are commonly used in the automotive industry due to their ability to increase
the specific power output of internal combustion engines. Heat transfer from the turbine to …

A methodology to calibrate gas-dynamic models of turbocharged petrol engines with variable geometry turbines and with focus on dynamics prediction during tip-in …

JR Serrano, FJ Arnau… - … Expo: Power for …, 2020 - asmedigitalcollection.asme.org
The variable geometry turbines (VGT) technology has been proved as beneficious for diesel
engines turbocharging, becoming the standard for passenger car diesel engines when high …

An investigation on the efficiency correction method of the turbocharger at low speed

JE Chung, JW Chung, NH Kim, SW Lee, GY Kim - Energies, 2018 - mdpi.com
The heat transfer in the turbocharger occurs due to the temperature difference between the
exhaust gas and intake air, coolant, and oil. This heat transfer causes the efficiency of the …

Experimental Energy and Exergy Analysis of an Automotive Turbocharger Using a Novel Power-Based Approach

S Kazemi Bakhshmand, LT Luu, C Biet - Energies, 2021 - mdpi.com
The performance of turbochargers is heavily influenced by heat transfer. Conventional
investigations are commonly performed under adiabatic assumptions and are based on the …

Towards the Direct Evaluation of Turbine Isentropic Efficiency in Turbocharger Testing

S Marelli, G Marmorato, M Capobianco, JM Boulanger - 2016 - sae.org
Turbocharging is playing today a fundamental role not only to improve automotive engine
performance, but also to reduce fuel consumption and exhaust emissions for both Spark …