Digital Signal Processing

Control of urea SCR systems for US diesel motor applications Michiel van Nieuwstadt Devesh Upadhyay E-COSM09- IFP, Paris, France carbamide SCR applications in the US E-COSM09 contents 1. SCR adorn in the US 2. SCR basics system and chemistry 3. Issues in engage 1. ammonium hydroxide storehouse control 2. Ammonia storage observers 4. NOx sensors 5. Outlook carbamide SCR applications in the US E-COSM09 1. SCR landscape in the US US diesel powertrains use mainly SCR for NOx aftertreatment: LNT does not work well for the high temperature heavily duty bicycle LNT struggle to reach the high requisite conversion efficiencies (>80%) LNT applications: VW Jetta (T2B5), imposture Ram (T2B8) SCR: 2009: Mercedes GL320, T2B5, 3.0l V6 BMW 335d, T2B5, 3.0l I6, twin turbo BMW X5 xDrive, 3.0l I6, twin turbo Audi Q7, 3.0l V6 2010: carrefour F250, F350, F450, ULEV2, 6.7l V8 GM trucks, 2500, 3500, ULEV2, 6.6l V8 Chrysler/ besiege/Cummins trucks, ULEV2, 6 .

7l I6 urea SCR applications in the US E-COSM09  track F250 Superduty truck Urea SCR applications in the US E-COSM09 F350 vs Focus Urea SCR applications in the US E-COSM09 Ford F250 superduty Urea SCR applications in the US E-COSM09 Emissions standards US diesel standards are subject to a forceful drop-off in 2010 2013 will legislate a reduction in OBD threshold US emissions standards, EPA75 light duty, < 8500 lbs, Tier2 Bin5 light duty, < 8500 lbs, Tier2 Bin8 atrocious duty chassis cert, 8,500-10,000 lbs wakeless duty chassis cert, 10,000-14,000 lbs heavy duty dyno cert, >14,000 lbs 2010 emissions 0.05 0.2 0.2 0.4! 0.2 2013 emissions 0.05 0.2 0.2 0.4 0.2 OBD 0.125 0.5 0.6 0.6 0.6 OBD 0.0875 0.35 0.4 0.4 0.4 unit chiliad/ air mile gramme/mile gram/mile gram/mile gram/bhphr next event in US diesel emissions will be LEV 3 for chassis cert: Tier2 Bin2: 0.02 g/m NOx new-sprung(prenominal) cycles: US06, SC03 No known changes in dyno certification standards. Urea SCR applications in the US E-COSM09...If you want to get a full essay, guild it on our website: BestEssayCheap.com

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