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大豆科学  2009 

生物柴油/矿物柴油混合燃料低温流动特性及流变特性研究

DOI: 10.11861/j.issn.1000-9841.2009.01.0148, PP. 148-150

Keywords: 生物柴油,矿物柴油,低温流动性,流变性

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Abstract:

采用多功能低温测定仪和旋转粘度计测定了生物柴油/矿物柴油混合燃料的冷滤点、凝点和粘度,研究了混合燃料的低温流动性能及流变学性能。结果表明:0#柴油调入生物柴油后,混合柴油的冷滤点降低,粘温性提高,低温流动性改善;不同温度下,剪切速率对混合燃料表观粘度影响不同。当温度高于冷滤点时,剪切速率对混合燃料表观粘度影响较小;当温度低于冷滤点时,剪切速率增大,混合燃料表观粘度降低,且随温度降低,表观粘度随剪切速率增大而降低更为明显。

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