Numerical Investigation of the Combustion Characteristics of an Internal Combustion Engine with Subcritical and Supercritical Fuel

被引：5

作者：

Song, Yukun ^{[1
]}

Zheng, Zhaolei ^{[1
]}

Peng, Tao ^{[1
]}

Yang, Zhanfeng ^{[1
]}

Xiong, Weidong ^{[1
]}

Pei, Yiqiang ^{[2
]}

机构：

[1] Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China

[2] Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2020年 / 10卷 / 03期

基金：

中国国家自然科学基金;

关键词：

internal combustion engine; numerical simulation; subcritical fuel; supercritical fuel; PHASE-TRANSITIONS; INJECTION; GASOLINE; EMISSIONS;

D O I：

10.3390/app10030862

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The similarities and differences in the combustion and emission characteristics of supercritical- and subcritical-state fuel injection conditions of an internal combustion engine was clarified. The effects of fuel state on temperature, pressure, turbulent kinetic energy, heat release rate, NO, and soot in the cylinder during the operation of the internal combustion engine were simulated. Ignition occurred faster, and the peak temperature in the cylinder was achieved in shorter time under the supercritical-state fuel injection condition than under the subcritical condition. The cylinder pressures in both states peaked at the same time, but the value of pressure in the supercritical fuel state was larger than that in the subcritical state. Furthermore, the turbulence in the supercritical fuel state was more intense than that in the subcritical state. The intense turbulence was beneficial to fuel and air mixing. NO emission increased, and soot emission decreased in the supercritical fuel state. The results show that supercritical fuel can be fully mixed with air to reduce the local concentration area in the cylinder, improve the combustion performance of the engine, and greatly reduce pollutant emissions.

引用

页数：13

共 35 条

[1] Dieseline for Supercritical Injection and Combustion in Compression-Ignition Engines: Volatility, Phase Transitions, Spray/Jet Structure, and Thermal Stability [J].

Anitescu, George ;

Bruno, Thomas J. ;

Tavlarides, Lawrence L. .

ENERGY & FUELS, 2012, 26 (10) :6247-6258

[2] Phase Transitions and Thermal Behavior of Fuel-Diluent Mixtures [J].

Anitescu, George ;

Tavlarides, Lawrence L. ;

Geana, Dan .

ENERGY & FUELS, 2009, 23 (5-6) :3068-3077

[3]

[Anonymous], THESIS

[4]

Antiescu G., 2009, U.S. patent, Patent No. [7,488,357B2, 7488357]

[5]

Binder A., 2015, Gasoline Engine Management, P110

[6]

Boer C.D., 2010, P SAE 2010 POW FUELS, P559

[7] Effect of motor vehicle emissions on respiratory health in an urban area [J].

Buckeridge, DL ;

Glazier, R ;

Harvey, BJ ;

Escobar, M ;

Amrhein, C ;

Frank, J .

ENVIRONMENTAL HEALTH PERSPECTIVES, 2002, 110 (03) :293-300

[8]

Canter N., 2010, TRIBOL LUBR, V63, P12

[9]

De Boer C., 2013, SAE TECH PAP SER

[10]

Dondapati R.S., 2014, ENG SCI TECHNOL INT, V20, P1676

← 1 2 3 4 →