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[1]王 琪,朱宝忠,孙运兰,等.乙醇基纳米流体燃料液滴着火燃烧研究[J].燃烧科学与技术,2017,(05):465-470.[doi:10.11715/rskxjs.R201703024]
 Wang Qi,Zhu Baozhong,Sun Yunlan,et al.Ignition and Combustion Characteristics of Ethonal-BasedNanofluid Droplets[J].Journal of Combustion Science and Technology,2017,(05):465-470.[doi:10.11715/rskxjs.R201703024]
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乙醇基纳米流体燃料液滴着火燃烧研究()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2017年05
页码:
465-470
栏目:
出版日期:
2017-10-15

文章信息/Info

Title:
Ignition and Combustion Characteristics of Ethonal-Based Nanofluid Droplets
作者:
王 琪朱宝忠孙运兰韩伟康
安徽工业大学能源与环境学院,马鞍山 243002
Author(s):
Wang QiZhu BaozhongSun YunlanHan Weikang
School of Energy and Environment,Anhui University of Technology,Ma’anshan 243002,China
关键词:
纳米流体燃料液滴着火延迟着火温度燃烧火焰
Keywords:
nanofluid fueldropletignition delayignition temperaturecombustion flame
分类号:
TK407.9
DOI:
10.11715/rskxjs.R201703024
文献标志码:
A
摘要:
采用挂滴法研究了在高温条件下纳米铝粉质量分数及粒径对乙醇基纳米流体燃料液滴着火特性及燃烧过 程的影响.研究结果表明,与乙醇燃料相比,添加50,nm 铝粉质量分数为0.5%,和2.5%,的乙醇基纳米流体燃料液 滴的着火延迟时间分别降低了0.315,s 和0.525,s,着火温度分别降低了12.712,℃和42.214,℃.增大纳米铝粉粒径 至100,nm,当添加的铝粉质量分数为2.5%,时,其液滴着火延迟时间比乙醇降低了0.42,s,两种粒径的纳米流体 燃料着火温度相近.乙醇及乙醇基纳米流体燃料液滴燃烧火焰分为3 个阶段:着火燃烧阶段、火焰熄灭阶段和二 次燃烧阶段.随纳米铝粉含量增加,在二次燃烧阶段纳米流体燃料液滴火焰亮点增多,火焰燃烧剧烈,其中含 50,nm铝粉的纳米流体燃料比含100,nm铝粉的纳米流体燃料燃烧剧烈.
Abstract:
The effects of various concentrations and sizes of nano-aluminum powder on the ignition characteristics and burning process of droplets of ethanol-based nanofluid fuels were investigated at high temperature.The results showed that the ignition delay time of droplets of ethanol-based nanofluid fuels containing 0.5%, and 2.5%, nanoaluminum powder with the average size of 50,nm decreased by 0.315,s and 0.525,s,respectively.The ignition temperature decreased by 12.712,℃ and 42.214,℃,respectively.As the average size of nano-aluminum powder increased from 50,nm to 100,nm,the ignition delay time of droplets of ethanol-based nanofluid fuels containing 2.5%, nano-aluminum powder decreased by 0.42,s,while the ignition temperature remained highly similar.The combustion process was divided into three distinctive stages:the ignition combustion stage,the flame extinguishment stage and the secondary combustion stage.With the increase of nano-aluminum powder content,the number of bright spots in the flame increased and the flame burned violently in the secondary combustion stage.The droplets of ethanol-based nanofluid fuels containing 50,nm nano-aluminum powder burned more violently than those of ethanol-based nanofluid fuels containing 100,nm nano-aluminum powder.

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备注/Memo

备注/Memo:
收稿日期:2017-03-15. 基金项目:国家自然科学基金资助项目(51376007);安徽省自然科学基金资助项目(1608085ME104). 作者简介:王 琪(1995— ),男,硕士研究生,1532827001@qq.com. 通讯作者:朱宝忠,男,硕士,副教授,baozhongzhu@163.com.
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