This investigation is carried out as an effort to apply infrared thermography for assessing diesel engine life monitoring. The thermal image from engine operation is quantified via applying image processing to evaluation engine life in terms of pixel values and it is associated with engine heat release rate (HRR) and oxides of nitrogen emission (NOx). The area of cylinder head heat (CHH) from infrared image and engine life possess inverse correlation. Engine analysis was conducted on direct injection, four-stroke, and single-cylinder diesel engine with a constant speed of 1500 rpm and a standard compression ratio of 17.5:1 at varying engine load (W) conditions. The engine behavior and infrared (IR) image processing analysis resulting from Aegle marmelos pyrolysis oil-diesel opus (A20) was compared with neat diesel. Engine experimental and image processing output responses reveal that A20 fuel opus is suggested to attain the enhanced engine life as compared with diesel fuel.

中文翻译：

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一种基于红外图像处理技术的柴油机寿命智能监测新方法

这项调查旨在将红外热成像技术应用于柴油发动机寿命监测评估。来自发动机运行的热图像是通过应用图像处理以像素值来评估发动机寿命来量化的，它与发动机热释放率 (HRR) 和氮氧化物排放 (NOx) 相关联。红外图像的气缸盖热面积（CHH）与发动机寿命呈反比关系。发动机分析是在直喷、四冲程和单缸柴油发动机上进行的，在不同的发动机负载 (W) 条件下，恒定转速为 1500 rpm，标准压缩比为 17.5:1。来自Aegle marmelos的发动机行为和红外 (IR) 图像处理分析裂解油柴油作品 (A20) 与纯柴油进行了比较。发动机实验和图像处理输出响应表明，与柴油燃料相比，建议使用 A20 燃料 opus 来延长发动机寿命。