کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
644696 | 1457129 | 2016 | 5 صفحه PDF | دانلود رایگان |
• Nano-scale PM from a TGDI engine is measured before and after the turbine.
• Variations in PM across the turbine are modelled by means of the Lambert W Function.
• The model predicts turbine-out PM with a coefficient of determination of 0.917.
• The input variables of the model are known to the ECU or can be measured on-board.
• The model could be implemented within engine performance simulation software.
A phenomenological model based on the Lambert WW Function is presented which is capable of describing the variations in nano-scale particulate matter (PM) number concentrations across the turbine stage of a turbocharged gasoline direct injected (TGDI) engine over a wide range of engine operating conditions with a coefficient of determination (CDCD) of 0.917. The model predictors are variables which are available to the engine control unit (ECU) either by means of stored maps or on-board measurements. The suitability of the proposed model for real-time usage within the ECU for vehicle calibration is discussed.
Journal: Applied Thermal Engineering - Volume 99, 25 April 2016, Pages 429–433