Experimental study on the high load extension of PODE/methanol RCCI combustion mode with optimized injection strategy

Fuel ◽  
2021 ◽  
pp. 122726
Author(s):  
Lejian Wang ◽  
Junheng Liu ◽  
Qian Ji ◽  
Ping Sun ◽  
Jie Li ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Load ◽  
Combustion Mode ◽  
Injection Strategy

Experimental study of fuel stratification for HCCI high load extension

2011 ◽  
Vol 88 (9) ◽  
pp. 2949-2954 ◽  
Author(s):  
Dong-bo Yang ◽  
Zhi Wang ◽  
Jian-Xin Wang ◽  
Shi-jin Shuai
Keyword(s):  
Experimental Study ◽  
High Load ◽  
Fuel Stratification

scholarly journals Experimental study of multiple pilot injection strategy in an automotive direct injection diesel engine

2018 ◽  
Vol 234 ◽  
pp. 03007
Author(s):  
Plamen Punov ◽  
Tsvetomir Gechev ◽  
Svetoslav Mihalkov ◽  
Pierre Podevin ◽  
Dalibor Barta
Keyword(s):  
Experimental Study ◽  
Diesel Engine ◽  
Diesel Engines ◽  
Direct Injection ◽  
Combustion Process ◽  
Injection Timing ◽  
Pilot Injection ◽  
Injection Strategy ◽  
Direct Injection Diesel Engine ◽  
Rate Of Heat Release

The pilot injection strategy is a widely used approach for reducing the noise of the combustion process in direct injection diesel engines. In the last generation of automotive diesel engines up to several pilot injections could occur to better control the rate of heat release (ROHR) in the cylinder as well as the pollutant formation. However, determination of the timing and duration for each pilot injection needs to be precisely optimised. In this paper an experimental study of the pilot injection strategy was conducted on a direct injection diesel engine. Single and double pilot injection strategy was studied. The engine rated power is 100 kW at 4000 rpm while the rated torque is 320 Nm at 2000 rpm. An engine operating point determined by the rotation speed of 1400 rpm and torque of 100 Nm was chosen. The pilot and pre-injection timing was widely varied in order to study the influence on the combustion process as well as on the fuel consumption.

Simulation and experimental study on ion current under GDI-HCCI combustion mode

2016 ◽  
Vol 5 (2) ◽  
pp. 120 ◽  
Author(s):  
Yinbo Cao ◽  
Yulin Chen ◽  
Jun Deng ◽  
Zongjie Hu ◽  
Robert W. Dibble ◽  
...  
Keyword(s):  
Experimental Study ◽  
Ion Current ◽  
Combustion Mode ◽  
Hcci Combustion

Experimental Study of EGR on Performance and Emissions of a Turbocharged DME Engine

2014 ◽  
Vol 886 ◽  
pp. 257-261
Author(s):  
Jun Hua Wu ◽  
Fu Shan Zuo ◽  
Yong Hui Zhang
Keyword(s):  
Experimental Study ◽  
Fuel Consumption ◽  
Substantial Reduction ◽  
Load Condition ◽  
High Load ◽  
Reduction Of No ◽  
Low Load ◽  
Emission Behavior ◽  
High Load Condition

This paper presents anexperimental study on reduction of NOx emission of a turbochargedengine fuelled with DME by means of EGR. Effects of EGR rate on engineefficiency and emission behavior was evaluated. The results show that the EGRcould be used as an effective way to reduce NOx emission. NOx isreduced almost linearly with increase of EGR rate. At low load condition, theNOx emission is reduced by 80% with 40% EGR rate without any economypenalty. At high load condition, the same substantial reduction of NOx couldbe achieved with only 20% EGR rate. While the HC and CO emissions are increasedwith increase of EGR rate. However, it is worth noting that EGR had a negativeeffect on fuel consumption at high load. Low EGR ratio should be taken at highengine load condition.

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