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首页> 外文期刊>Journal of the Japan Petroleum Institute >Physical Properties and Combustion Characteristics of Emulsion Fuels of Water/Diesel Fuel and Water/Diesel Fuel/Vegetable Oil Prepared by Ultrasonication
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Physical Properties and Combustion Characteristics of Emulsion Fuels of Water/Diesel Fuel and Water/Diesel Fuel/Vegetable Oil Prepared by Ultrasonication

机译：超声制备水/柴油燃料和水/柴油/植物油乳化燃料的物理性质和燃烧特性

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摘要

Ultrasonic preparation of two-phase water-in-oil (W/O) emulsion fuel was carried out using an ultrasonic apparatus with a rod horn. The effect of the position of the horn tip emitting ultrasound into the sample mixture on emulsion stability was investigated for water (10 vol%)/diesel fuel/surfactant (2 vol%) mixtures. In addition, the effects of ultrasonication time and vegetable oil addition on viscosity, water droplet size and combustion characteristics of the emulsion fuels prepared by ultrasonic treatment were studied for water (5 vol%)/diesel fuel/surfactant (2 vol%) and water (5 vol%)/diesel fuel/vegetable oil (5 vol%)/surfactant (2 vol%) mixtures. The stability of the emulsion fuel significantly depended on the tip position of the ultrasonic horn immersed in the mixture. Both the stability and viscosity of the emulsion increased with sonication time for the first 10 min and then remained constant. The water droplets in the emulsions of water/diesel fuel/surfactant and water/diesel fuel/vegetable oil/ surfactant were extremely fine and median diameter of the droplets was about 0.3 μm. The water content in the W/O emulsion fuels was significant in the reduction in soot, NO and NO_x during combustion.
机译：使用具有杆状喇叭头的超声设备来超声制备两相油包水（W / O）乳化燃料。对于水（10％（体积））/柴油燃料/表面活性剂（2％（体积））的混合物，研究了在样品混合物中发射超声波的喇叭尖端位置对乳液稳定性的影响。此外，研究了超声处理时间和植物油添加量对水（5体积％）/柴油燃料/表面活性剂（2体积％）和水的超声处理制得的乳化燃料的粘度，水滴尺寸和燃烧特性的影响。 （5体积％）/柴油/植物油（5体积％）/表面活性剂（2体积％）的混合物。乳化燃料的稳定性在很大程度上取决于浸入混合物中的超声变幅杆的尖端位置。在最初的10分钟内，乳液的稳定性和粘度均随超声处理时间的增加而增加，然后保持恒定。水/柴油燃料/表面活性剂和水/柴油燃料/植物油/表面活性剂的乳液中的水滴非常细，并且液滴的中值直径为约0.3μm。 W / O乳化燃料中的水含量显着降低了燃烧过程中烟尘，NO和NO_x的含量。

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