Research on the applications of infrared technique in the diagnosis and prediction of diesel engine exhaust fault |
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Authors: | Shi-gui Lv Li Yang Qian Yang |
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Affiliation: | Department of Power Engineering, Naval University of Engineering, Wuhan 430033, China |
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Abstract: | This paper mainly introduces the basic principles, the methods and the applications of infrared technique in the diagnosis
and prediction of diesel engine exhaust faults. The test-bed for monitoring diesel engine exhaust faults by thermal infrared
imager has been designed. In different running conditions, the exterior surface radiation temperatures of the exhaust pipe
of the 6135G-1 diesel engine have been measured by infrared imaging system. According to the principle of infrared temperature
measurement, the real temperatures of the exterior surface of the exhaust pipe have been calculated. Based on the principle
of heat transfer, the method of calculating the exhaust temperatures according to the exterior surface radiation temperatures
of exhaust pipe measured by thermal infrared imager is built. The relationship between diesel engine exhaust temperatures
and faults has been analyzed. It is shown that the application of infrared inspection and diagnosis to the identifying of
diesel engine exhaust faults is feasible and effective. |
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Keywords: | infrared exhaust temperature infrared diagnosis diesel engine fault |
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