種別 国内論文 No. 46 年度 2010
論文名 バイオマスの成分ガスを燃料とする火花点火機関の燃焼に及ぼすCO2希釈の影響
Effect of CO2 Dilution on the Combustion Characteristics of a Spark-Ignition Engine Fuelled with Individual Component of Bio-Gas
著者名 荒木幹也 志賀聖一
掲載誌名 日本機械学会誌
This paper presents further results of the study on basic combustion characteristics of gaseous fuels simulated for a bio-gas produced through a biomass gasification process with a catalyzar. CO2 dilution effect was examined for the individual fuel component of CH4, CO and H2 in a single-cylinder spark-ignition engine under the condition of WOT, MBT and a constant speed of 1500 rpm. For these three kinds of fuels, until a certain level of CO2 dilution, the thermal efficiency does not vary, since the combustion duration increase is vary small, which might have given negligible change in the indicated thermal efficiency or the degree of constant volume combustion. Thus, there is an operating condition under which acceptable level of deterioration of thermal efficiency was obtained with satisfactorily low level of NOx emission.