亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

改性生物柴油碳煙與NOx排放試驗(yàn)
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項(xiàng)目:

國家自然科學(xué)基金資助項(xiàng)目（50776042）;江蘇省重大項(xiàng)目（10KJA47009）;江蘇省創(chuàng)新項(xiàng)目（CX10B—261Z）


Experiment on the Smoke and NOx Emissions of Modified Biodiesel
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    針對生物柴油氧化安定性較差、NOx排放偏高的情況，添加抗氧化劑（BHA）對生物柴油進(jìn)行燃料改性，分析了抗氧化劑對生物柴油氧化安定性的影響，討論了改性前、后生物柴油粘度隨溫度的變化規(guī)律。測量了高壓共軌柴油機(jī)燃燒改性生物柴油的排放污染物隨轉(zhuǎn)速、負(fù)荷的變化規(guī)律。探討了抗氧化劑改善生物柴油碳煙、NOx排放的作用機(jī)理。研究結(jié)果表明：燃料改性后，生物柴油的氧化安定性大幅度提高，燃油粘度略有降低；發(fā)動機(jī)的碳煙、NOx排放均明顯下降，特別是在中、高負(fù)荷時效果顯著；燃燒過程中抗氧化劑抑制了脂肪酸長鏈分子的高溫裂解，促進(jìn)了自由基的淬熄效應(yīng)，由此改變了碳煙與NOx排放之間此消彼長的關(guān)系。

    Abstract:

    Because of the poor oxidation stability and the high NOx emissions, biodiesel fuel was redesigned by adding anti-oxidants. The oxidation stability and viscosity of the biodiesel have been measured and analyzed. The engine experiment was conducted and it was fueled by biodiesel and BHA/biodiesel, NOx emission and smoke were measured. The mechanism of anti-oxidants to decrease the smoke, NOx emission was discussed. The results showed that BHA additive was a high effective antioxidant of biodiesel, the viscosity of biodiesel was decreased slightly; and the emission smoke and NOx was decreased significantly, especially at the high load condition. Anti-oxidants can restrain the high-temperature dissociation of long-chain fatty acid molecules during the combustion process, and it can promote the quenching effects of free radical. Also, it can change the “trade-off” tradition relationship between smoke and NOx emissions. 

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

許廣舉,王忠,毛功平,王小哲.改性生物柴油碳煙與NOx排放試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(1):8-11. Xu Guangju, Wang Zhong, Mao Gongping, Wang Xiaozhe. Experiment on the Smoke and NOx Emissions of Modified Biodiesel[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(1):8-11.

復(fù)制
分享
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: