紀要論文

エタノール水溶液の燃料性状および燃焼特性に関する一考察

A STUDY OF FUEL PROPERTIES AND COMBUSTION CHARACTERISTICS FOR ETHANOL WATER SOLUTION

jpn

21879923

https://doi.org/10.15002/00014611

法政大学大学院理工学研究科

59

1

7

2018-03-31

Version of Record

ヘッダー部分に誤記 ; (誤) 法政大学大学院理工学・工学研究科紀要 (正) 法政大学大学院紀要. 理工学・工学研究科編

Bioethanol is well known that the oil-alternate fuel for automobiles as carbon neutral fuel adapted to environmental problem. Furthermore, ethanol water solution is thought effective to depletion problems of fossil fuel resources. This study aims to examine that the evaporation haracteristics, fuel properties and combustion characteristics of ethanol water solution using a hot plate, a spirit lamp and a swirl burner. The images of flame structure for ethanol water solution was visualized for various air ratio and water contents by using glass tube. The exhaust gases (NOx, CO, O2) and combustion temperature are measured in combustion chamber and exhaust pipe by using N type thermocouples. The main conclusions are as follows: 1) The Leidenfrost temperature of ethanol water solution increases with decreasing ethanol concentration. 2) The brightness and length of flame for ethanol water solution at the low concentration for ethanol water concentration (E45) decrease compared to the others ethanol water concentration (E60, E80 E95). 3) The combustion temperature decreases for the low concentration of ethanol water concentration(E45) than that of others for ethanol water concentration (E60, E80 E95) at any air ratios under constant ethanol flow rate condition. 4) The CO emission decreases with increasing the air ratio for the low concentration of ethanol water concentration (E45). 5) The NOx emission decreases with decreasing the ratio of ethanol addition at any air ratios. 6) Fuel flow rate has small influence for NOx emission under high air ratios at any ethanol water concentration.

Article

AA12677220