A comprehensive experimental and modeling study of iso-pentanol combustion

摘要: Abstract Biofuels are considered as potentially attractive alternative fuels that can reduce greenhouse gas and pollutant emissions. iso-Pentanol is one of several next-generation biofuels be used an fuel in combustion engines. In the present study, new experimental data for iso-pentanol shock tube, rapid compression machine, jet stirred reactor, counterflow diffusion flame presented. Shock tube ignition delay times were measured iso-pentanol/air mixtures at three equivalence ratios, temperatures ranging from 819 to 1252 K, nominal pressures near 40 60 bar. Jet reactor experiments reported 5 atm five ratios. Rapid machine was obtained 40 bar, below 800 K. Laminar speed non-premixed extinction strain rates using configuration. A detailed chemical kinetic model oxidation developed including high- low-temperature chemistry a better understanding characteristics higher alcohols. First, bond dissociation energies calculated ab initio methods, proposed rate constants based on previously presented butanol isomers n-pentanol. The validated against existing 1–60 atm, 650–1500 K, ratios 0.25–4.0, covering both premixed environments. method direct relation graph (DRG) with expert knowledge (DRGX) employed eliminate unimportant species reactions mechanism, resulting skeletal mechanism predict flames. addition, reaction path temperature A-factor sensitivity analyses conducted identifying key various conditions.