インジケーター線図を用いた水素エンジンの燃料解析に関する研究 : 熱工学 , 内燃機関 , 動力など

概要

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Hydrogen has higher burning velocity and shorter quenching distance than hydrocarbons, and combustion characteristics of hydrogen in internal combustion engines are different from hydrocarbons. Authors have reported influencing factors to thermal efficiency in a hydrogen fueled spark ignition engine, and shown that heat release rate is very important in the thermal efficiency analysis. Error factors in calculation of heat release rate were analyzed in this research. Results show that hydrogen combustion with higher burning velocity than hydrocarbons has faster change in specific heat during combustion period, and it is better to include the term of d_k/d_θ especially in evaluation of cooling loss ratio. Influences of coolant temperature and engine speed on thermal efficiency were also analyzed in this research.
一般社団法人日本機械学会の論文
2001-02-25