Combustion characteristics of various fuels during research octane number testing on an instrumented CFR F1/F2 engine

Low-Temperature Combustion of High Octane Fuels in a Gasoline Compression Ignition Engine

Gasoline compression ignition (GCI) has been shown as one of the advanced combustion concepts that could potentially provide a pathway to achieve cleaner and more efficient combustion engines. Fuel and air in GCI are not fully premixed compared to homogeneous charge compression ignition (HCCI), which is a completely kinetic-controlled combustion system. Therefore, the combustion phasing can be ...

A Comprehensive Comparative Investigation of Compressed Natural Gas as an Alternative Fuel in a Bi-Fuel Spark Ignition Engine

Nowadays, increased attention has been focused on internal combustion engine fuels. Regarding environmental effects of internal combustion engines particularly as sources of pollution and depletion of fossil fuels, compressed natural gas has been introduced as an alternative to gasoline and diesel fuels in many applications. A high research octane number which allows combustion at higher co...

Combustion and Emissions Characteristics of Biodiesel Fuels

Reformer Gas Application in Combustion Onset Control of HCCI Engine

Homogenous charge compression ignition (HCCI) combustion is spontaneous multi-site combustion of a nominally premixed air/fuel mixture that exhibits high rate of pressure rise and short combustion duration. To avoid excessive pressure rise rate and knocking, HCCI engines are fueled with highly diluted mixture using a combination of excess air and/or EGR. HCCI combustion is attractive due to ...

The Cooperative Fuels Research Engine: Applications for Education and Research

Lead is currently banned from most gasoline because it is harmful to humans. While aviation gasoline still contains lead, this may change in the near future due to increased regulation in the interest of public safety. This has created a research opportunity to verify that new unleaded aviation fuels are compatible with equipment currently in use. The Cooperative Fuels Research (CFR) engine is ...