An audit of aerodynamic loss in a double entry turbine under full and partial admission

P Newton, C Copeland, R Martinez-Botas… - International Journal of …, 2012 - Elsevier
The current study investigates the sources of loss inside a mixed flow, double entry
turbocharger turbine under steady inlet conditions in both full and partial admission. Under …

3-D computational loss analysis of an asymmetric volute twin-scroll turbocharger

T Palenschat, P Newton… - … Expo: Power for …, 2017 - asmedigitalcollection.asme.org
In times of stringent emission standards for automotive and truck applications, exhaust gas
recirculation (EGR) is used in IC engines to reduce NOx emissions by recirculating a portion …

A comparison of timescales within a pulsed flow turbocharger turbine

C Copeland, P Newton… - … on turbochargers and …, 2012 - books.google.com
Most modern turbocharger turbines are driven by a highly pulsating flow generated at the
exhaust valve of an internal combustion engine. The amplitude and frequency of the exhaust …

Asymmetric twin-scroll turbocharging in diesel engines for energy and emission improvement

D Zhu, X Zheng - Energy, 2017 - Elsevier
Turbocharging is widely used in all types of diesel engines to improve power, fuel economy,
and emissions. The asymmetric twin-scroll turbine is a new technology that is relatively …

Potential for energy and emissions of asymmetric twin-scroll turbocharged diesel engines combining inverse Brayton cycle system

D Zhu, X Zheng - Energy, 2019 - Elsevier
In this paper, a new combined cycle of asymmetric twin-scroll turbocharged diesel engine
cycle and inverse Brayton cycle (IBC) for use is proposed. The use of a single asymmetric …

Unsteady performance of a mixed-flow turbine with nozzled twin-entry volute confronted by pulsating incoming flow

Y Xue, M Yang, RF Martinez-Botas, B Yang… - Aerospace Science and …, 2019 - Elsevier
Turbine with twin-entry volute has advantage of utilising energy from pulsatile exhaust gas
and improving low-speed torque of an internal combustion engine. This paper investigates …

Comparison between the steady performance of double-entry and twin-entry turbocharger turbines

A Romagnoli, CD Copeland… - Journal of …, 2013 - asmedigitalcollection.asme.org
Most boosting systems in internal combustion engines utilize “pulse turbocharging” to
maximize the energy extraction by the turbine. An internal combustion engine with more …

Understanding the twin scroll turbine: flow similarity

N Brinkert, S Sumser, A Schulz… - … Expo: Power for …, 2011 - asmedigitalcollection.asme.org
The current study investigates the flow conditions of a twin scroll asymmetric turbine. This is
motivated by the operating conditions of the turbine at a heavy-duty reciprocating internal …

Using Machine Learning for Loss Prediction in a Hybrid Meanline Modeling Method to Deliver Improved Radial Turbine Performance Prediction

P Ren, C Stuart, S Spence… - Journal of …, 2023 - asmedigitalcollection.asme.org
Low fidelity modeling approaches remain attractive due to an unrivaled ability to predict full
turbine performance maps quickly compared to high-fidelity approaches such as …

Understanding the twin scroll turbine: flow similarity

N Brinkert, S Sumser, S Weber… - Journal of …, 2013 - asmedigitalcollection.asme.org
The current study investigates the flow conditions of a twin scroll asymmetric turbine. This is
motivated by the operating conditions of the turbine at a heavy-duty reciprocating internal …