The best method of cleaning diesel exhaust is Selective Catalytic Reduction (SCR) which converts oxides of nitrogen (NOx) emissions into benign nitrogen gas and water. SCR can deliver near-zero emissions of NOx. The NOx reduction process starts with an efficient engine design that burns clean Ultra Low Sulfur Diesel (ULSD) and produces inherently lower exhaust emissions—exhaust that is already much cleaner due to leaner and more complete combustion. The vehicle’s onboard computer regulates the addition Diesel Exhaust Fluid (UREA) in precisely metered spray patterns into the exhaust stream just ahead of the SCR converter where the conversion happens. Together with the catalyst inside the converter, the mixture undergoes a chemical reaction that produces nitrogen gas (N2) and water vapor.
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The Fluor Engineering Challenge has very specific guidelines for building your car, and a scoring system for measuring its performance. The goal is for the car to transport weights from a starting area to a finish area. Points are awarded for how much weight the car can carry, and for unused construction materials. A summary of the rules and scoring guidelines, with an explanatory video, is presented later.
This video provides an overview of the Fluor Challenge. This video provides an overview of the Fluor Challenge. https:///watch?v=mCT-LGuuL24