Application of Corona Discharge Ignition in a Boosted Direct-Injection Single Cylinder Gasoline Engine: Effects on Combustion Phasing, Fuel Consumption, and Emissions

2016 ◽  
Vol 9 (3) ◽  
pp. 1970-1988 ◽  
Author(s):  
Daniel I. Pineda ◽  
Benjamin Wolk ◽  
Jyh-Yuan Chen ◽  
Robert W. Dibble
Keyword(s):  
Corona Discharge ◽  
Fuel Consumption ◽  
Gasoline Engine ◽  
Direct Injection ◽  
Single Cylinder ◽  
Discharge Ignition ◽  
Fuel Consumption And Emissions

Characteristics Study of Knocking, Fuel Consumption and Emissions with Cooled External EGR on SIDI Turbo Charged Gasoline Engine

2011 ◽  
Vol 66-68 ◽  
pp. 102-107
Author(s):  
Ying Li Zu ◽  
Zheng Xin Zhou ◽  
Hong Yang Yu
Keyword(s):  
Fuel Consumption ◽  
Gasoline Engine ◽  
Direct Injection ◽  
Combustion Process ◽  
Spark Timing ◽  
Study Results ◽  
Combustion Phase ◽  
Variable Valve ◽  
Gas Recirculation ◽  
Fuel Consumption And Emissions

Based on 2.0L spark ignition direct-injection(SIDI) turbo charged gasoline engine with variable valve timing(VVT), the spark timing effects on combustion process, fuel consumption, knock limitation and emissions were studied with external exhaust gas recirculation(EGR) on different loads and speeds. For the purpose of easily comparing data results, the location of 50% mass fraction burned(CA50) was widely used in this paper. The study results show that CA50 is changing linearly with spark timing. To reach the same combustion phase, spark timing need to be further advanced with external EGR. Combustion variability of IMEP(COV) increase sharply with retarding of CA50 with external EGR. The external EGR can greatly improve knock limitation and knock intensity(KI). To reach the best fuel consumption, CA50 need to be advanced to 6 °CA to 8 °CA for both with external EGR and without external EGR. NOx emissions increase with advancing of spark timing. HC show different trends when retarding spark timing with and without external EGR.

Characteristics of Water-in-Diesel Emulsions in a Single Cylinder Compression Ignition Engine

2014 ◽  
Author(s):  
Teja Gonguntla ◽  
Robert Raine ◽  
Leigh Ramsey ◽  
Thomas Houlihan
Keyword(s):  
Fuel Consumption ◽  
Direct Injection ◽  
Engine Performance ◽  
Operating Conditions ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Compression Ignition Engine ◽  
Oil Emulsion ◽  
Single Cylinder ◽  
Performance And Emission

The objective of this project was to develop both engine performance and emission profiles for two test fuels — a 6% water-in-diesel oil emulsion (DOE-6) fuel and a neat diesel (D100) fuel. The testing was performed on a single cylinder, direct-injection, water-cooled diesel engine coupled to an eddy current dynamometer. Output parameters of the engine were used to calculate Brake Specific Fuel Consumption (BSFC) and Engine Efficiency (η) for each test fuel. DOE-6 fuels generated a 24% reduction in NOX and a 42% reduction in Carbon Monoxide emissions over the tested operating conditions. DOE-6 fuels presented higher ignition delays — between 1°-4°, yielded 1%–12% lower peak cylinder pressures and produced up to 5.5% lower exhaust temperatures. Brake Specific Fuel consumption increased by 6.6% for the DOE-6 fuels as compared to the D100 fuels. This project is the first research done by a New Zealand academic institution on water-in-diesel emulsion fuels.

scholarly journals Tomographic imaging of the liquid and vapour fuel distributions in a single-cylinder direct-injection gasoline engine

2014 ◽  
Vol 16 (4) ◽  
pp. 565-579 ◽  
Author(s):  
Nataša Terzija ◽  
Solon Karagiannopoulos ◽  
Steven Begg ◽  
Paul Wright ◽  
Krikor Ozanyan ◽  
...  
Keyword(s):  
Gasoline Engine ◽  
Direct Injection ◽  
Tomographic Imaging ◽  
Single Cylinder ◽  
Direct Injection Gasoline Engine

scholarly journals Research on the effect of different test cycles on low temperature emissions and fuel consumption of Light plug-in hybrid cars

2021 ◽  
Vol 268 ◽  
pp. 01028
Author(s):  
Fan Yang ◽  
Chongzhi Zhong ◽  
Chun Li
Keyword(s):  
Low Temperature ◽  
Fuel Consumption ◽  
Gasoline Engine ◽  
Direct Injection ◽  
Hybrid Car ◽  
Direct Injection Gasoline Engine ◽  
P Cycle

Based on a plug-in hybrid car equipped with a 1.5L turbocharged direct injection gasoline engine, this paper studies the emission and fuel consumption characteristics of the prototype vehicle under three different cycle conditions, WLTC city, WLTC and CLTC-P. The results show that for the four pollutants: CO, THC, NMHC and NOx, WLTC city cycle emissions are the largest, WLTC cycle emissions are the smallest, CLTC-P cycle emissions are the middle. For N2O, WLTC cycle has the largest combined emissions, CLTC-P cycle combined emissions are the smallest, and WLTC city cycle combined emissions are the center. The combined fuel consumption under WLTC city conditions is approximately 1.3 times the combined fuel consumption under the complete WLTC cycle. The combined fuel consumption under CLTC-P conditions is approximately 1.25 times that of the complete WLTC cycle. The first phase of each cycle is the phase with the highest emissions and fuel consumption.

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