QQ客服 官方微博 反馈留言

	Analysis on ignition and extinction of n-heptane in homogeneous systems
	Liu, YF ; Pei, PC
	2010-05-11 ; 2010-05-11 ; OCT
关键词	ignition delay times thermal runaway steady state assumptions continuously stirred flow reactor Engineering, Multidisciplinary Materials Science, Multidisciplinary
中文摘要	To calculate ignition delay times, the governing equations about species and temperature, which are in a closed volume based on the theory of thermal explosion and in a continuously stirred flow reactor, are deducted. The method referred to steady state assumptions is based on the observation that due to very fast chemical processes in combustion problems many chemical species and reactions are in a quasi-steady state or partial equilibrium. When a species is assumed to be in the steady state, the corresponding differential equation can be replaced by an algebraic relation, which reduces the computational costs. The steady state solution of the reactor equations describes the three ignition temperature regimes and get "S-shaped curve". The reduced simplified 4-step mechanism for n-heptane from 1011 elementary reactions leads with the steady state assumptions to linear differential equations, which is solved. The simulation results of the 4-step reduced mechanism for n-heptane are fitted well with the experiment data. At last, two important parameters are discussed thoroughly and the temperature perturbation is given. It reduces the computational efforts considerably without losing too much accuracy and further supplies numerical methods for turbulent combustion in the diesel engine.
语种	英语 ; 英语
出版者	SCIENCE PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25535]
专题	清华大学
推荐引用方式 GB/T 7714	Liu, YF,Pei, PC. Analysis on ignition and extinction of n-heptane in homogeneous systems[J],2010, 2010, OCT.
APA	Liu, YF,&Pei, PC.(2010).Analysis on ignition and extinction of n-heptane in homogeneous systems..
MLA	Liu, YF,et al."Analysis on ignition and extinction of n-heptane in homogeneous systems".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。