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首页> 外文期刊>International Journal of Heat and Mass Transfer >Vaporization characteristics of suspended droplets of biodiesel fuels of Indian origin and their diesel blends - An experimental study
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Vaporization characteristics of suspended droplets of biodiesel fuels of Indian origin and their diesel blends - An experimental study

机译：印度生物柴油及其混合物的悬浮液滴的汽化特性-实验研究

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摘要

For a liquid fuel, its vaporization characteristics are important. The determination of vaporization rates for alternative fuels such as biodiesel and its diesel blends is reported in this work. For this purpose, suspended droplet technique in conjunction with optical measurement of the droplet diameter is used. The physical processes occurring during the vaporization are studied at temperatures lower than the boiling point of the respective fuels to ascertain all the regimes of vaporization. Further, the vaporization characteristics are related to the composition of the fuel, which governs its thermal and physical properties. This study becomes important due to absence of such a comprehensive data in literature, and attempts to create a useful data-base for vaporization rates and related features of biodiesel fuels produced from sources such as jatropha, karanja, palm and coconut, and their diesel blends. The overall evaporation rates of neat and fuel blends are reported systematically. For neat fuels, the vaporization rates are seen to correlate directly with two parameters namely, heat transport and mass transport parameters, constituted using the gas-phase thermal and physical properties, as well as the liquid-phase density. Also, the vaporization rate is seen to inversely vary with a parameter called long chain saturation factor. All these parameters depend on the composition of the fuel.
机译：对于液体燃料，其汽化特性很重要。这项工作报告了确定替代燃料（例如生物柴油及其柴油混合物）的汽化速率的方法。为此，使用了悬浮液滴技术和液滴直径的光学测量。在低于相应燃料沸点的温度下研究汽化过程中发生的物理过程，以确定所有汽化方式。此外，汽化特性与燃料的成分有关，后者决定了燃料的热和物理性能。由于文献中缺少如此全面的数据，因此这项研究变得很重要，并试图建立有用的数据库，以了解从麻风树，魔芋，棕榈和椰子等来源的柴油及其混合物生产的生物柴油燃料的蒸发速率和相关特征。 。系统地报告了纯净和燃料混合物的总蒸发速率。对于纯燃料，可以看到汽化速率与两个参数直接相关，即热传输和质量传输参数，这些参数是使用气相的热和物理性质以及液相密度构成的。同样，可以看到汽化速率与称为长链饱和因子的参数成反比。所有这些参数取决于燃料的成分。

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