柴油-氢混合物的物理特性研究

L. Leybovych, Borys Dymo, Sergey Anastasenko, Yurii Yevstigneyev
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引用次数: 0

摘要

实验测定了氢气对柴油粘度的影响、氢气在柴油中的溶解速率和氢气在柴油中的扩散系数。将氢溶解在液体燃料中会改变它的物理化学性质。研究发现,柴油在饱和氢条件下,其粘度和密度变化不大。封闭坩埚中的闪点降低了3-4℃。对柴油中氢的溶解速率进行了研究。研究发现,氢气在柴油中的扩散系数与燃料中氢气的初始浓度有显著的关系。为保证热机的安全运行,建议液体燃料中提供饱和氢。提出了一种基于MQ-8传感器的专用氢传感器氢燃料饱和系统的设计。制定了防止科研站向环境非法排放氢气的保护制度。当氢气产生和燃料供应区域的氢气浓度为1%时,该保护可确保停机设备。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
RESEARCH OF THE PHYSICAL PROPERTIES OF DIESEL FUEL-HYDROGEN MIXTURES
The change in the viscosity of diesel fuel with dissolved hydrogen, the rate of dissolution of hydrogen in the diesel fuel, and the hydrogen diffusion coefficient in diesel fuel were experimentally determined. Dissolving hydrogen in liquid fuel changes its physical-chemical properties. It has been found that the viscosity and density of diesel fuel change little when it is saturated with hydrogen. The flashpoint in a closed crucible is reduced by 3–4 °C. The rate of dissolution of hydrogen in diesel fuel has been investigated. It has been found that the diffusion coefficient of hydrogen in diesel fuel depends significantly on the initial concentration of H2 in the fuel. The liquid fuel is advisable to supply with saturated hydrogen for the safety of the heat engine operation. The design of the hydrogen fuel saturation system with a special hydrogen sensor based on the MQ-8 sensor was proposed. The system of protection of the research stand from unauthorized emissions of hydrogen into the environment has been worked out. The protection ensures the shutdown of the stand equipment when the hydrogen concentration in the zone of its generation and supply to the fuel is at the level of 1%.
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