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高噴射壓力下生物柴油噴霧特性試驗(yàn)與仿真
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國家自然科學(xué)基金資助項(xiàng)目(50806039)


Spray Characteristics of Biodiesel under High Injection Pressure
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    摘要:

    利用高速攝影技術(shù),在定容燃燒彈中進(jìn)行了高噴射壓力條件下的生物柴油與柴油噴霧特性試驗(yàn),,對比了兩種燃料的噴霧形態(tài),、貫穿距離,、噴霧錐角,,然后利用仿真計算研究了背景壓力,、噴射壓力,、背景溫度對生物柴油貫穿距離的影響規(guī)律,。研究結(jié)果表明:背景壓力增加,生物柴油貫穿距離減??;噴射壓力升高,生物柴油貫穿距離增大;背景溫度增加,,生物柴油貫穿距離先增大后減小,,呈現(xiàn)不規(guī)律的波動,生物柴油的蒸發(fā)速率較大是造成這種現(xiàn)象的原因,。

    Abstract:

    The spray characteristics of biodiesel and diesel were studied in a constant volume combustion bomb by using high speed photography under high injection pressure. The effects of background pressure, background temperature, and injection pressure on the spray characteristics were studied by means of CFD code. The results indicated that the penetration of biodiesel decreased with the increase of backpressure; penetration of biodiesel increased with the increase of injection pressure; with the increase of background temperature, penetration of biodiesel began to fluctuate due to the high evaporation rate.

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趙陸明,何旭,鄭亮,王建昕,劉福水.高噴射壓力下生物柴油噴霧特性試驗(yàn)與仿真[J].農(nóng)業(yè)機(jī)械學(xué)報,2012,43(9):6-10. Zhao Luming, He Xu, Zheng Liang, Wang Jianxin, Liu Fushui. Spray Characteristics of Biodiesel under High Injection Pressure[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(9):6-10.

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  • 在線發(fā)布日期: 2012-09-04
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