Abstract The idea of producing water-containing slurries and emulsions based on Diesel fuel, oil, coal, and coal processing waste has spread around the world. One of the ways to make the combustion of such fuels more efficient is through the micro-explosive droplet breakup, that is, the secondary atomization directly in the car combustion chambers and furnaces of boiler units. Here we study experimentally how micro-explosion affects the energy-related and environmental parameters of the combustion of slurry fuel droplets based on coal and its processing wastes. We present the results of experiments determining the threshold temperatures and ignition delay times, dimensions of the flame cloud of the dispersing particles, and anthropogenic emissions. The results obtained indicate that the micro-explosive atomization of fuel droplets can improve the environmental performance by up to 40%. The comprehensive analysis of the prospects of using coal-water slurries containing petrochemicals instead of coal has shown that the relative performance indicator of slurry fuel is 1.7–3.3 times higher than that of coal. With varying values of weight coefficients (environment, energy, and cost), the dimensionless slurry fuel performance coefficient may increase by 3–30% as compared to the case of equal values for these coefficients.

中文翻译：

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燃料液滴微爆炸雾化对其燃烧相关性能指标的影响

摘要 基于柴油、石油、煤炭和煤炭加工废料生产含水浆液和乳液的想法已在世界范围内传播。使此类燃料燃烧更高效的方法之一是通过微爆液滴破碎，即直接在汽车燃烧室和锅炉装置炉膛中进行二次雾化。在这里，我们通过实验研究微爆炸如何影响基于煤及其加工废物的浆状燃料液滴燃烧的能量相关和环境参数。我们展示了确定阈值温度和点火延迟时间、分散粒子的火焰云的尺寸和人为排放的实验结果。获得的结果表明，燃料液滴的微爆炸雾化可以将环境性能提高多达40%。综合分析含石化水煤浆替代煤的前景分析表明，煤浆燃料的相对性能指标比煤高1.7-3.3倍。随着权重系数（环境、能源和成本）值的变化，与这些系数的值相等的情况相比，无量纲泥浆燃料性能系数可能增加 3-30%。