TY - JOUR
TI - Combustion characteristics of and bench test on a mixture of gasoline and alternative fuel
AU - Du Zhibin
AU - Chen Chao
AU - Wang Lei
JN - Thermal Science
PY - 2021
VL - 25
IS - 5
SP - 3409
EP - 3418
PT - Article
AB - In this study, an evaporative premixed constant-volume combustion system was designed for the combustion of liquid fuels, compared with a traditional constant-volume firebomb. The effects of an alternative fuel to gasoline on the combustion characteristics of the laminar flame of gasoline were analyzed, and a bench test was subsequently carried out. The results showed that the addition of the alternative fuel made the maximum non-stretched flame propagation velocity of combusting gasoline increasingly close to that of combusting diluted mixed gas. The Markstein lengths of gasoline and a mixture of gasoline and an alternative fuel became shorter with a higher equivalence ratio, and flame combustion was increasingly unstable. The laminar combustion velocity of the mixture rose before declining as the equivalence ratio increased. According to the results of the bench test, adding 20% of the alternative fuel into gasoline had little impact on the power performance and fuel consumption of the engine, but it reduced HC emissions by 25% and CO emissions by 67%.