Thermodynamic Simulation and Prototype Testing of a Four-Stroke Free-Piston Engine

被引：16

作者：

Lin, Jiming ^{[1
]}

Xu, Zhaoping ^{[1
]}

Chang, Siqin ^{[1
]}

Yin, Ningxia ^{[1
]}

Yan, Hao ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME | 2014年 / 136卷 / 05期

基金：

中国国家自然科学基金;

关键词：

free-piston engine; pressurization; four-stroke; thermodynamic simulation; COMBUSTION;

D O I：

10.1115/1.4026299

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In order to achieve higher-energy conversion efficiency, a free-piston engine with an improved four-stroke thermodynamic cycle is investigated in this paper. This cycle is optimized according to the variable strokes feature and is characterized by the short intake stroke, the complete expansion stroke, the external pressurization, and the inter-cooling. The development of a four-stroke free-piston engine system simulation model was described, and the effects of the cycle on the system performances were qualitatively analyzed. According to the experiment of the prototype, the generating efficiency of 33.4% can be achieved when the system is fueled with gasoline and the output power is significantly increased from 1.62 to 2.68 kW. The simulation and experiment results are analyzed in detail, giving insight into the performances of the system. Studies show that the energy-saving and environmental protection performances of the system can be significantly promoted by using the improved thermodynamic cycle.

引用

页数：8

共 24 条

[11] Multi-dimensional scavenging analysis of a free-piston linear alternator based on numerical simulation [J].

Mao, Jinlong ;

Zuo, Zhengxing ;

Li, Wen ;

Feng, Huihua .

APPLIED ENERGY, 2011, 88 (04) :1140-1152

[12] Coupled dynamic-multidimensional modelling of free-piston engine combustion [J].

Mikalsen, R. ;

Roskilly, A. P. .

APPLIED ENERGY, 2009, 86 (01) :89-95

[13] A review of free-piston engine history and applications [J].

Mikalsen, R. ;

Roskilly, A. P. .

APPLIED THERMAL ENGINEERING, 2007, 27 (14-15) :2339-2352

[14] A computational study of free-piston diesel engine combustion [J].

Mikalsen, R. ;

Roskilly, A. P. .

APPLIED ENERGY, 2009, 86 (7-8) :1136-1143

[15]

Nagy C. T., 2004, THESIS W VIRGINIA U

[16]

Nemeicek P., 2006, 6 AS CONTR C BAND IN

[17]

Prados M. A., 2002, THESIS STANFORD U ST

[18]

Qingfeng L., 2008, ENERG FUEL, V22, P3443

[19]

Qingfeng L., 2010, INT J AUTOM TECHNOL, V11, P111

[20]

Siqin C., 2008, J NANJING U SCI TECH, V32, P449

← 1 2 3 →