A comprehensive experimental and modeling study of 2-methylbutanol combustion

作者：Park Sungwoo^*; Mannaa Ossama; Khaled Fethi; Bougacha Rafik; Mansour Morkous S; Farooq Aamir; Chung Suk Ho; Sarathy S Mani

来源：Combustion and Flame, 2015, 162(5): 2166-2176.

DOI：10.1016/j.combustflame.2015.01.014

• Chemical kinetic modeling
• Shock tube
• Constant volume combustion vessel
• 2-Methylbutanol
• Ignition delay
• Laminar flame speed

2-Methylbutanol (2-methyl-1-butanol) is one of several next-generation biofuels that can be used as an alternative fuel or blending component for combustion engines. This paper presents new experimental data for 2-methylbutanol, including ignition delay times in a high-pressure shock tube and premixed laminar flame speeds in a constant volume combustion vessel. Shock tube ignition delay times were measured for 2-methylbutanol/air mixtures at three equivalence ratios, temperatures ranging from 750 to 1250K, and at nominal pressures near 20 and 40 bar. Laminar flame speed data were obtained using the spherically propagating premixed flame configuration at pressures of 1. 2, and 5 bar. A detailed chemical kinetic model for 2-methylbutanol oxidation was developed including high- and low-temperature chemistry based on previous modeling studies on butanol and pentanol isomers. The proposed model was tested against new and existing experimental data at pressures of 1-40 atm, temperatures of 740-1636K. equivalence ratios of 0.25-2.0. Reaction path and sensitivity analyses were conducted for identifying key reactions at various combustion conditions, and to obtain better understanding of the combustion characteristics of larger alcohols.

• 出版日期2015-5