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燃燒室結(jié)構(gòu)對天然氣發(fā)動機(jī)燃燒過程的影響
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    摘要:

    為了研究燃燒室結(jié)構(gòu)對天然氣發(fā)動機(jī)燃燒過程的影響,，模擬了淺盆形和渦流室式燃燒室結(jié)構(gòu)的天然氣發(fā)動機(jī)的進(jìn)氣、壓縮及燃燒過程,。給出了2種不同結(jié)構(gòu)燃燒室的燃燒持續(xù)期,、燃燒過程中缸內(nèi)氣流運(yùn)動、火焰前鋒面位置等,，并對2種燃燒室進(jìn)行了試驗(yàn)對比,。模擬計(jì)算及試驗(yàn)結(jié)果表明，通過渦流室噴孔的約束作用,，可以改善已燃?xì)怏w和未燃?xì)怏w之間的傳熱傳質(zhì)模式,，提高火焰?zhèn)鞑ニ俣取?/p>

    Abstract:

    The intake, compression and combustion process of the shallow bowl and swirl chamber spark-ignition natural gas engine was simulated to study the effect of the chamber structure on combustion of the natural gas engine. The combustion duration, gas flow in the cylinder during the combustion process and position of the flame front surface was given. The experimental contrast analysis of the two kinds of combustion chambers was also provided. The simulation and experimental results showed that the restriction effect of the spit hole on the swirl chamber could improve the heat transfer and mass transport model between the gas burned and unburned, which could increase the flame propagation rate.

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李娜,張強(qiáng),王志明.燃燒室結(jié)構(gòu)對天然氣發(fā)動機(jī)燃燒過程的影響[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2007,38(2):52-55.[J]. Transactions of the Chinese Society for Agricultural Machinery,2007,38(2):52-55.

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