What is it about?
It sounds obvious, but what is in gasoline (petrol) directly affects the emissions out of a vehicle. In this work we have developed an equation (the PN index) which links gasoline characteristics. We have then undertaken a comprehensive study on three different engines measuring their Particle Number (PN) emissions, and evaluated our PN index.
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Why is it important?
Our findings show that fuel composition is an important parameter, but is not the whole story. Other engine parameters have an important effect too, and this is discussed in the work.
Perspectives
I am delighted to have been able to publish this study undertaken over 3 yrs in collaboration with Jaguar Land Rover. The results are an important iteration in understanding of PN emissions from GDI engines.
Dr Felix CP Leach
University of Oxford
Read the Original
This page is a summary of: Predicting the particulate matter emissions from spray-guided gasoline direct-injection spark ignition engines, Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering, September 2016, SAGE Publications,
DOI: 10.1177/0954407016657453.
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