Evaluation of the Uncertainty of Selected Parameters that Characterise Diesel Engine Work

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The evaluation included the values and uncertainty of the mean indicated pressure in subsequent operating cycles of a diesel-fuelled compression ignition engine. Analysis of combustion chamber pressure deviations from the mean values helped identify disturbance that affected the given signal. The impact of this disturbance was checked for the mean indicated pressure uncertainty and the coefficient of variation (X(pIND)). R, a free, open-source environment and commercially available Matlab software were used for statistical computing.

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69-74

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January 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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