摘要
本文以柴油机工作过程的热力学第一定律数值模拟为基础，应用热力学第二定律分析一台直喷式柴油机的缸内过程的能量可用性。通过各过程的能量可用性平衡分析，定量地计算了能量作功能力和不可逆损失，并且与热力学第一定律的能量平衡进行了比较；分析计算了直喷式柴油机的循环喷油量、燃烧开始角、燃烧持续期、燃烧品质指数及气缸绝热对缸内能量可用性和热力学第一定律、第二定律热效率的影响。
In this paper availability of in cylinder processes for a direct injection engine is analysed by use of thermodynamic Second Law,which is based on a simulation model of the engine cycle by First Law analysis.The energy available for doing work and irreversible loss are quantified by the avai lability balance,and compared with First Law energy balance.A parameter study is carried out.The effects of fuel amount injected per cycle,burning start angle,burning duration,burning rate shape factor and cylinder thermal insulation on in cylinder availability,First Law and Second Law efficiency are calculated.
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
1998年第1期9-17,共9页
Transactions of Csice
关键词
直喷式柴油机
柴油机
缸内过程
能量可用性
Direct injection diesel engine,In cylinder processes,Availability
