1.中国航发控制系统研究所, 无锡 214125
2.上海理工大学 能源与动力工程学院, 上海 200093
3.上海市动力工程多相流动与传热重点实验室, 上海 200093
周骛(1986-), 女, 博士, 教授。 E-mail: zhouwu@usst.edu.cn
收稿:2025-11-25,
修回:2026-03-30,
网络首发:2026-04-20,
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李宇,张嘉皓,杨昊宗,等. 燃油中颗粒污染物在线测量技术研究[J]. 航空工程进展.
LI Yu,ZHAGN Jiahao,YANG Haozong, et al. Research on online measurement technology for particle pollutants in fuel[J]. Advances in Aeronautical Science and Engineering.(in Chinese)
燃油系统抗污染试验中污染物种类复杂、粒径范围宽,导致难以实现在线监测。对此,提出一种基于光谱消光法的燃油污染物质量浓度在线测量方法。首先,基于Lambert-Beer定律建立光谱消光测量值ln(
I
₀/
I
)与颗粒质量浓度的理论关系,并通过实验标定获得光谱强度与质量浓度的线性标定模型,同时对标定结果进行验证;随后,将该方法应用于工业现场开展燃油污染物浓度的在线测量,并与滤膜称重法进行对比评估。结果表明:实验标定阶段光谱消光法的污染物浓度测量相对误差不超过±5%,现场应用中其测量结果与滤膜称重法相比的相对误差在10%以内。该方法能够实现燃油中污染物质量浓度的准确在线测量,为燃油系统污染评估提供了有效的技术手段。
To address the difficulty of online monitoring caused by the diverse types and wide size distribution of contaminants in fuel system anti-contamination tests, this study proposes an online measurement method for contaminant mass concentration in fuel based on spectral extinction. The method establishes a theoretical relationship between the measured spectral extinction value ln(
I₀
/
I
) and particle mass concentration using the Lambert–Beer law, followed by experimental calibration to obtain a linear model between spectral intensity and mass concentration. The calibration was then validated, and the proposed method was further applied to industrial field tests, where its performance was compared with that of the membrane gravimetric method. The results show that the relative measurement error of the spectral extinction method does not exceed ±5% during calibration, and its relative error remains within 10% in industrial field applications. The proposed method enables accurate online measurement of contaminant mass concentration in fuel and provides an effective technical approach for fuel contamination evaluate.
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