scholarly journals Investigation on the effects of pilot injection on low temperature combustion in high-speed diesel engine fueled with n -butanol–diesel blends

2015 ◽  
Vol 106 ◽  
pp. 748-758 ◽  
Author(s):  
Haozhong Huang ◽  
Qingsheng Liu ◽  
Ruzhi Yang ◽  
Tianru Zhu ◽  
Ruiqing Zhao ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Low Temperature ◽  
High Speed ◽  
Pilot Injection ◽  
Low Temperature Combustion ◽  
High Speed Diesel ◽  
Temperature Combustion

An Experimental Investigation of the Auto-Ignition Properties of Two C5 Esters: Methyl Butanoate and Butyl Methanoate

2007 ◽  
Author(s):  
Stephen M. Walton ◽  
Carlos Perez ◽  
Margaret S. Wooldridge
Keyword(s):  
Low Temperature ◽  
High Speed ◽  
Combustion Engine ◽  
Low Temperature Combustion ◽  
Moderate Pressure ◽  
Molecular Weights ◽  
Auto Ignition ◽  
Methyl Butanoate ◽  
Temperature Combustion ◽  
Time Histories

Ignition studies of two small esters were performed using a rapid compression facility (RCF). The esters (methyl butanoate and butyl methanoate) were chosen to have matching molecular weights, and C:H:O ratios, while varying the lengths of the constituent alkyl chains. The effect of functional group size on ignition delay time was investigated using pressure time-histories and high speed digital imaging. The mixtures studied covered a range of conditions relevant to oxygenated fuels and fuel additives, including bio-derived fuels. Low temperature and moderate pressure conditions were selected for study due to their relevance to advanced low temperature combustion strategies, and internal combustion engine conditions. The results are discussed in terms of the reaction pathways affecting the ignition properties.

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