This slide can be used to frame up the advances in diesel technology and how that relates to emissions reductions for the last 20 years. Beginning in 2013/2014 the reduction in gaseous emissions will now focus on reduction of CO2.As regulations have changed there has been a steady increase in technology to meet them. Until now the focus has been on reducing NOx and PM. Now that those levels are near zero the focus has shifted to efficiency and greenhouse gases. SCR is the building block for meeting future regulations.
For the Heavy-Duty Engine StandardsThe baseline (2010) amount of gCO2/bhp-hr is 490 and 584 for tractor (Set) and Vocational (FTP) respectivelyThese amounts will have to be reduced by 3% by 2014 to 475 (tractor) and 567 (vocational)By 2017 the heavy-duty engine results should improve by 5% (555) for vocational and 6% (460) for tractor
The Medium-Duty Diesel engine standards use 2010 as a baseline.Vocational has a baseline g CO2/bhp-hr of 630, and Tractor (SET) has a baseline of 518 g CO2/bhp-hrVocational has to make a 5% reduction in CO2/bhp-hr to 600 g in 2014, whereas tractor has to make a 3% reduction to 502 gIn 2017, Vocational has to have a 9% reduction (576) and Tractor has to have a 6% reduction (487).
Engine Impact of Idling
August 21, 2012
Beyond EPA 2013 - Evolution of Technology NOx, PM CO2 thru Fuel Efficiency Selective Catalytic Reduction Diesel Particulate Filter OBD Cooled Exhaust Gas Recirculation Electronic Fuel Systems Aftercooling
Rock Solid RulesIdle time is costly! Every HOUR of idle time can decrease fuel efficiency by 1%.Less Idling decreases fuel consumption resulting in less emissions (GHG), and a smaller carbon footprint.Idling increases maintenance and reduces component durability.
Cost of Engine Idling – Fuel Consumption Idle time can significantly affect the vehicle’s fuel efficiency. Overall, Up to 10% impact on MPG. The vehicle uses the most diesel fuel when the engine runs and the truck doesn’t move. Idle/PTO fuel consumption increases exponentially with engine speed. Almost double with SCR Engines. Idle/PTO Fuel Consumption Engine Speed RPM Average Fuel Consumption (Gal/Hr) 650 ~0.5 1000 ~1.0 1200 ~1.5 When idling is necessary to maintain cab/bunk compartment temperatures, select the lowest idle speed possible to maintain cab heat. Select the lowest idle speed possible to maintain engine temperature of 140 F Degree in winter operation.
Cost of Engine Idling – Maintenance AFTERTREATMENT – Idling results in inefficient combustion, increasing your soot-load downstream into your AFTERTREATMENT. – AFTERTREATMENT plugs; requiring a REGENERATION; buring MORE diesel fuel to clean DPF of soot-load. – Increased regenerations decreases the life of the catalyst filters. $1,500-2,000/each. – Today You pay in fuel THREE times for extra idling. ENGINE FAN – If fan is engaged during idling, it results in additional fuel consumption. – Creates a dust-storm under the hood, reducing air-cleaner life AND engine life. – Reduces Fan Clutch life for when you really need it – to cool down the engine.
Cost of Engine Idling – Durability While the engine is running, You are wearing-out all of these components prematurely: – Air-compressor – Fan Clutch – Belts and Idler Pulleys – Alternator – Water Pump – Turbo (very expensive turbo today) – Injectors (thru increased regenerations) – Aftertreatment Exhaust System, and components – Air Intake system: Air cleaners, EGR Valves –Every part on the engine……
How do I reduce Idling?•Shut it off !•Utilize Electronic Engine Controls•Auxiliary Heaters •Diesel Fired Heaters; set on timer •Electric Heaters via Shorepower •DC Battery Power Units Heat/AC •APU’s for Hotel loads•Don’t bump-up Idle speed.
Programmable Engine Features Idle Shutdown Idle Shutdown in PTO Idle Shutdown Override Ambient Temperature Shutdown Override Driver Reward
How do I manage Idling?You can’t manage anything without an effective means to measure it.You can’t change behaviors unless you have good data to validate your goals.
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Summary….You do the math…..Every Drop of fuel saved goes right to the bottom-line $ $.You pay three times in fuel burned for Idling today.Reduce Green-House Gases.Reduce Maintenance Costs.