An Experimental Study Using Spark-Assisted Stratified Compression Ignition (SSCI) Hybrid Combustion Mode for Engine Particle Number (PN) Reduction in a High Compression Ratio Gasoline Engine

2016 ◽  
Author(s):  
Hui Liu ◽  
Zhi Wang ◽  
Yan Long ◽  
Shouzhi Xiang ◽  
Jianxin Wang
Keyword(s):  
Experimental Study ◽  
Compression Ratio ◽  
Particle Number ◽  
Gasoline Engine ◽  
Compression Ignition ◽  
Combustion Mode ◽  
High Compression Ratio ◽  
High Compression

Experimental study of knock combustion and direct injection on knock suppression in a high compression ratio methanol engine

Fuel ◽  
2021 ◽  
pp. 122505
Author(s):  
Qimeng Duan ◽  
Xiaojun Yin ◽  
Xiaochen Wang ◽  
Hailiang Kou ◽  
Ke Zeng
Keyword(s):  
Experimental Study ◽  
Compression Ratio ◽  
Direct Injection ◽  
High Compression Ratio ◽  
High Compression

Investigation of Gasoline Compression Ignition (GCI) Combustion in a High Compression-Ratio Heavy-duty Single-Cylinder Diesel Engine

2021 ◽  
Author(s):  
Khanh Cung ◽  
Daniel Christopher Bitsis ◽  
Jason Miwa ◽  
Edward Smith ◽  
Thomas Briggs ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Compression Ratio ◽  
Compression Ignition ◽  
Heavy Duty ◽  
High Compression Ratio ◽  
Single Cylinder ◽  
High Compression

Performance and Emission Analysis of Partially Premixed Charge Compression Ignition Combustion

2019 ◽  
Vol 141 (6) ◽  
Author(s):  
Charu Vikram Srivatsa ◽  
Jonathan Mattson ◽  
Christopher Depcik
Keyword(s):  
Compression Ratio ◽  
Fuel Injection ◽  
Load Condition ◽  
Injection System ◽  
Compression Ignition ◽  
High Compression Ratio ◽  
High Compression ◽  
Ci Engine ◽  
Partially Premixed ◽  
Load Conditions

In order to investigate the performance and emissions behavior of a high compression ratio compression ignition (CI) engine operating in partially premixed charge compression ignition (PPCI) mode, a series of experiments were conducted using a single-cylinder engine with a high-pressure rail fuel injection system. This included a moderately advanced direct injection strategy to attempt PPCI combustion under low load conditions by varying the injection timing between 25 deg and 35 deg before top dead center (BTDC) in steps of 2.5 deg. Furthermore, during experimentation the fuel injection pressure, engine speed, and engine torque were kept constant. Performance parameters and emissions were measured and analyzed using a zero-dimensional heat release model. Compared to the baseline conventional 12.5 deg BTDC injection, in-cylinder pressure and temperature were higher at advanced timings for all load conditions considered. Additionally, NOx, PM, CO, and total hydrocarbon (THC) were higher than conventional results at the 0.5 N·m load condition. While PM emissions were lower, and CO and THC emissions were comparable to conventional injection results at the 1.5 N·m load condition between 25 deg and 30 deg BTDC, NOx emissions were relatively high. Hence, there was limited success in beating the NOx-PM trade-off. Moreover, since the start of combustion (SOC) occurred BTDC, the resulting higher peak combustion pressures restricted the operating condition to lower loads. As a result, further investigation including exhaust gas recirculation (EGR) and/or variance in fuel cetane number (CN) is required to achieve PPCI in a high compression ratio CI engine.

Sign in / Sign up

Export Citation Format

Share Document