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微型内燃机工况下C1–C4烷烃着火延迟数值模拟
Authors
张云路
李星
+3 more
蒋利桥
赵黛青
霍杰鹏
Publication date
1 January 2016
Publisher
Abstract
燃料着火延迟时间对采用蓄热自着火方式的微型内燃机非常重要。利用Chemkin-Pro软件,分别对甲烷、乙烷、丙烷和正丁烷空气混合气在微型内燃机运行工况下进行着火延迟时间模拟计算,探究初始温度(500 K-1 000 K)、压力(1-10 atm)和当量比(0.6-1.2)对着火延迟时间的影响。同时分析了微型内燃机扫气不尽的尾气残留组分(N2、CO2和H2O)对正丁烷着火延迟时间的影响。结果表明:在四种燃料中,正丁烷的低温着火延迟特性最佳,是一种适合于采用蓄热自着火方式的微型内燃机燃料;初始温度、压力的提高和当量比的增大有利于燃料着火延迟时间的缩短;尾气残留使得燃料着火延迟时间变长,着火延迟特性变差,尾气各组分的热效应和基元反应对燃料着火延迟有着不同的影响机制
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Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
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oai:ir.giec.ac.cn:344007/31376
Last time updated on 04/12/2021
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/18800
Last time updated on 05/12/2019