scholarly journals Cycle-to-Cycle Variation Analysis of Two-Colour PLIF Temperature Measurements Calibrated with Laser Induced Grating Spectroscopy in a Firing GDI Engine

2019 ◽  
Author(s):  
Christopher Willman ◽  
Richard Stone ◽  
Martin Davy ◽  
Benjamin A O Williams ◽  
Paul Ewart ◽  
...  
Keyword(s):  
Temperature Measurements ◽  
Variation Analysis ◽  
Cycle Variation ◽  
Gdi Engine ◽  
Grating Spectroscopy

scholarly journals In-Cylinder Temperature Measurements Using Laser Induced Grating Spectroscopy and Two-Colour PLIF

2017 ◽  
Vol 10 (4) ◽  
pp. 2191-2201 ◽  
Author(s):  
Blane Scott ◽  
Christopher Willman ◽  
Ben Williams ◽  
Paul Ewart ◽  
Richard Stone ◽  
...  
Keyword(s):  
Temperature Measurements ◽  
Grating Spectroscopy

Stagnation Temperature Measurements in a Shock-Tunnel Facility Using Laser-Induced Grating Spectroscopy

2018 ◽  
Vol 32 (1) ◽  
pp. 226-236 ◽  
Author(s):  
Claudio Selcan ◽  
Tobias Sander ◽  
Philipp Altenhöfer ◽  
Fabian Koroll ◽  
Christian Mundt
Keyword(s):  
Shock Tunnel ◽  
Temperature Measurements ◽  
Stagnation Temperature ◽  
Grating Spectroscopy

Experimental Investigation of Fuel Impingement and Spray-Cooling on the Piston of a GDI Engine via Instantaneous Surface Temperature Measurements

2014 ◽  
Vol 7 (3) ◽  
pp. 1178-1194 ◽  
Author(s):  
Fabian Köpple ◽  
Dimitri Seboldt ◽  
Paul Jochmann ◽  
Alexander Hettinger ◽  
Andreas Kufferath ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Surface Temperature ◽  
Spray Cooling ◽  
Temperature Measurements ◽  
Gdi Engine

scholarly journals INTRA-PATIENT INTER-CYCLE VARIATION ANALYSIS - DOES THE OUTCOME OF A PRIOR IVF CYCLE PREDICT THE OUTCOME OF SUBSEQUENT CYCLE(S)?

2021 ◽  
Vol 116 (3) ◽  
pp. e234
Author(s):  
Lilach Marom Haham ◽  
Adi Kuperman Shani ◽  
Anjila Roumia ◽  
Iryna Kuznyetsova ◽  
Mitko Madjunkov ◽  
...  
Keyword(s):  
Variation Analysis ◽  
Cycle Variation ◽  
Subsequent Cycle

Research of EGR On Commercial Turbocharged GDI Engine with Intense Tumble Flow

2021 ◽  
Author(s):  
Congbo Yin ◽  
Quanwei Chen ◽  
Zhendong Zhang ◽  
Haibing Zhu ◽  
Kai Shen
Keyword(s):  
Fuel Consumption ◽  
Power Performance ◽  
Heavy Load ◽  
Cycle Variation ◽  
Combustion Duration ◽  
Combustion Phase ◽  
Gdi Engine ◽  
Gdi Engines ◽  
Gas Recirculation ◽  
Combustion Cycle

Abstract The application of exhaust gas recirculation (EGR) technology on GDI engines can suppress knocking, reduce fuel consumption, and reduce NOx emissions. The effects of EGR with enhanced intake tumble flow, on the combustion phase, combustion duration, knock index and combustion cycle variation of the engine, were studied at two speeds of 1500 r/min and 2000 r/min from low to medium and to full load. The research shows that although the commercial engine has been well calibrated and optimized, the optimization of EGR and enhanced tumble flow together with the optimization of the ignition angle can improve the engine's economy and emission characteristics, while maintaining relatively fast burning speed and low combustion cycle variation. From medium to heavy load, the economy can be improved by 2.6~10%, and the minimum fuel consumption can be reduced to 213 g/kW.h. Under heavy load conditions (BMEP more than 14 bars), power performance deteriorates due to insufficient boost performance. The 5~20% EGR rate brings 10% power loss. EGR combined with tumble intake has a significant effect on reducing the engine's NOx and CO, with average reductions of 60% and 22%, but HC increased by 32%.

Sign in / Sign up

Export Citation Format

Share Document