Abstract
The concept of hydrogen enriched LPG fuelled engine can be essentially characterized as low emissions and reduction of backfire for hydrogen engine. The purpose of study is obtaining low-emission and high-efficiency in LPG engine with hydrogen enrichment. In order to determine the ideal compression ratio, a variable compression ratio single cylinder engine was developed. The objective of this paper is to clarify the effects of hydrogen enriched LPG fuelled engine on exhaust emission, thermal efficiency and performance. The compression ratio of 8 was selected to minimize abnormal combustion. To maintain equal heating value, the amount of LPG was decreased, and hydrogen was gradually added. In a similar manner, the relative air-fuel ratio was increased from 0.8 to 1.3 in increment of 0.1, and the ignition timing was controlled to be at MBT each case.
| Original language | English |
|---|---|
| Pages (from-to) | 1196-1202 |
| Number of pages | 7 |
| Journal | KSME International Journal |
| Volume | 17 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2003 |
Bibliographical note
Funding Information:This work was supported( in part) by the Ministryo f Science& Technology(M OST) and the Korea Sciencea nd EngineeringF oundation (KOSEF) through the Center for Automotive Parts Technology(C APT) at KeimyungU niver-sity, Korea.
Keywords
- Brake Specific Fuel Consumption
- Compression Ratio
- Liquefied Petroleum Gas
- Minimum Spark Advance for Best Torque
- Relative Air-fuel Ratio
- Thermal Efficiency