scholarly journals An experimental and kinetic modeling study of the ignition delay and heat release characteristics of a five component gasoline surrogate and its blends with iso‐butanol within a rapid compression machine

2021 ◽  
Vol 53 (6) ◽  
pp. 787-808
Author(s):  
Christian Michelbach ◽  
Alison Tomlin
Keyword(s):  
Heat Release ◽  
Kinetic Modeling ◽  
Ignition Delay ◽  
Rapid Compression Machine ◽  
Rapid Compression ◽  
Modeling Study

Experimental and Kinetic Modeling Study on Self-Ignition of α-Methylnaphthalene in a Heated Rapid Compression Machine

2017 ◽  
Vol 31 (10) ◽  
pp. 11304-11314 ◽  
Author(s):  
Shuzhou Sun ◽  
Liang Yu ◽  
Sixu Wang ◽  
Yebing Mao ◽  
Xingcai Lu
Keyword(s):  
Kinetic Modeling ◽  
Rapid Compression Machine ◽  
Rapid Compression ◽  
Modeling Study

scholarly journals Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2729
Author(s):  
Ireneusz Pielecha ◽  
Sławomir Wierzbicki ◽  
Maciej Sidorowicz ◽  
Dariusz Pietras
Keyword(s):  
Heat Release ◽  
Combustion Chamber ◽  
Internal Combustion Engines ◽  
Direct Injection ◽  
Combustion Process ◽  
Combustion Efficiency ◽  
Injection System ◽  
Rapid Compression Machine ◽  
Process Indicators ◽  
Rapid Compression

The development of internal combustion engines involves various new solutions, one of which is the use of dual-fuel systems. The diversity of technological solutions being developed determines the efficiency of such systems, as well as the possibility of reducing the emission of carbon dioxide and exhaust components into the atmosphere. An innovative double direct injection system was used as a method for forming a mixture in the combustion chamber. The tests were carried out with the use of gasoline, ethanol, n-heptane, and n-butanol during combustion in a model test engine—the rapid compression machine (RCM). The analyzed combustion process indicators included the cylinder pressure, pressure increase rate, heat release rate, and heat release value. Optical tests of the combustion process made it possible to analyze the flame development in the observed area of the combustion chamber. The conducted research and analyses resulted in the observation that it is possible to control the excess air ratio in the direct vicinity of the spark plug just before ignition. Such possibilities occur as a result of the properties of the injected fuels, which include different amounts of air required for their stoichiometric combustion. The studies of the combustion process have shown that the combustible mixtures consisting of gasoline with another fuel are characterized by greater combustion efficiency than the mixtures composed of only a single fuel type, and that the influence of the type of fuel used is significant for the combustion process and its indicator values.

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