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http://dx.doi.org/10.5855/ENERGY.2016.25.3.041

A study on the effect of Octane-Number on combustion characteristics and vehicle performance  

Noh, Kyeong-ha (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Kim, Jung-hwan (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Lee, Min-ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Kim, Ki-ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Publication Information
Abstract
This study examined the combustion characteristics and emissions, fuel economy, acceleration by selecting the two fuel with octane number difference to investigate the effect on the combustion characteristics and performance of the vehicle according to the octane number. First, a single-cylinder engine was used for the combustion characteristic experiment, Of the fuel, which is distributed on the market by the selection of two different octane fuel it is performed experiments. Single cylinder experiment examined the combustion characteristics that appear when you gradually advancing the ignition timing by the ignition timing and air-fuel ratio control for each fuel and through an output, emissions, pressure, hence examined the correlation between by octane number. In addition through the actual vehicle compared the changes in the fuel octane number difference, through acceleration tests examined the impact of the octane number requirements for high-performance segment. As a result, fuel of high octane number in accordance with the ignition timing the advancing showed a slightly stable combustion characteristics, a slight increase occurred in the acceleration test and power. However, both fuel does not significantly differ from the current mode, simulating the urban and highway fuel efficiency. Therefore, the operating conditions of the vehicle currently being sold on the Effects of high-octane fuel. fuel efficiency was found insufficient.
Keywords
gasoline; ignition timing; octane number; fuel economy; acceleration;
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