Informative Speech on Egr, Dpf, Scr Emission Systems Essay Example
Informative Speech on Egr, Dpf, Scr Emission Systems Essay Example

Informative Speech on Egr, Dpf, Scr Emission Systems Essay Example

Available Only on StudyHippo
  • Pages: 4 (867 words)
  • Published: June 18, 2018
  • Type: Essay
View Entire Sample
Text preview

Preparation Outline Title: Emission Control Advances on Diesel Engines Specific Purpose Statement: To inform my audience about diesel emission technologies. Central Idea Statement: There has been three major technologies added to diesel exhaust systems since 2003 including an EGR, DPF, and SCR that have dramatically reduced NOx emissions (smog gases). Introduction I. Who knows the fundamental difference between a gas and diesel engine? A. A gas engine uses spark to ignite gasoline while a diesel engine uses compressed air to ignite the diesel fuel. II.

Diesel engines in turn run more efficiently or simply get better miles per gallon than a similar sized gasoline engine. A. A diesel engine are more efficient up to 20% (Popular Mechanics) B. Although diesel engines run more efficiently they produce 30% highe

...

r emissions or smog producing gases than gas engines. (Popular Mechanics) C. In the last decade new technology has lowered the amount smog produced by diesel engines. D. In 2003 an EGR was developed followed by a DPF in 2007 and most recently a SCR in 2010. (Phil Romba of Light and Medium Fleet Magazine) E.

What does this mean to you, well you all breathe air right? Transition/ Internal Preview: So 2003 started the wave of new technologies in diesel engines starting with the development of the EGR. Body I. An EGR or exhaust gas recirculation systems is part of the exhaust system which is also known as the tailpipe. A. Since it takes air to make an engine run and not all air is used when the engine is running some is recirculated back into the engine to be reused. B. This simple design of reusing unused air

View entire sample
Join StudyHippo to see entire essay

lowers the temperature of the oxygen being burned which reduces the amount of smog gases produced. Master Technicians Service Conference) Transition: Although the EGR worked well emission standards again changed in 2007. II. Diesel Particulate Filter or DPF is also part of the exhaust system and works together with the EGR. A. The DPF has a filter that collects carbon from exhaust and is effective from 85 – 100% in cleaning carbon from the exhaust. (Dane, 2010) B. After the filter becomes clogged there is a computer system in the vehicle that increases the temperature of the exhaust and burns off the carbon from the filter. (Gryglak, 2009) C.

The EGR and DPF system worked great together reducing emissions but lowered the efficiency of the engines. (Phil Romba) Transition/ internal summary: Now we’ve looked at two systems helping diesel engines run clean, I will now introduce the 2010 system, the SCR. III. Selective catalyst reduction or SCR is the most recent system to be used to reduce smog gases from exiting the exhaust. A. This is the most advanced system in which a catalyst of urea, which is an organic chemical, is injected into a chamber with exhaust gasses which reduces the smog gases down into nitrogen and water. Gryglak, 2009) B. It has been proven to reduce emissions of smog by 70 -95%. (Dane, 2010) C. The only downfall is that urea needs to be carried in a tank on the vehicle and refilled every time the oil is changed. Transition: In conclusion we now know the three technologies developed since 2003, the EGR, DPF, and SCR and their effect on lowering emissions. Conclusion I.

When these three systems are used in conjunction together the strain on each on is significantly reduced allowing the diesel engine to operate at its maximum efficiency while still reducing smog emissions significantly.

A. Given that U. S. emissions are going to become even stricter by 2020 (EPA) technological advances by all engine manufactures is going to be seen. B. Domestic and foreign automotive manufactures have collaborated on developing these systems and the EPA has invested millions of dollars into the research and development to make diesel engines run clean and efficient. C. So you may still ask, what does this have to do with me, well let me ask, do you breath? Bibliography Blumberg, Katherin O. "LOW-SULFUR GASOLINE & DIESEL. " Web. 07 Jan. 2012. lt;http://www. unep. org/transport/pcfv/pdf/publowsulfurpaper. pdf>. Dane, John, and Kent J. Voorhees. "Investigation of Nitro-Organic Compounds in Diesel Engine Exhaust. " National Renewable Energy Laboratory (2010). Print. "Emission Standards: USA: California Diesel Risk Reduction Program. " DieselNet: Diesel Emissions Online. Web. 07 Jan. 2012. <http://www. dieselnet. com/standards/us/ca_diesel. php>. Gryglak, Adam. "ALL-NEW FORD-ENGINEERED, FORD-TESTED, FORD-BUILT DIESEL MAXIMIZES 2011 SUPER DUTY'S PRODUCTIVITY | Ford Motor Company Newsroom. Home | Ford Motor Company Newsroom. 31 Aug. 2009. Web. 05 Jan. 2012. ;http://media. ford. com/article_display. cfm? article_id=30879;. Legislation to Authorize the Administrator of the Environmental Protection Agency to Accept, as Part of a Settlement, Diesel Emission Reduction Supplemental Environmental Projects : Report (to Accompany S. 2146). " (2008): 1-4. UWSP Library Forward. Web. 01 Jan. 2012. Romba, Phil. "Light ; Medium Truck Online. " Light & Medium Truck Online | Managing Commercial, Public, Utility, and Telecom Fleets. Web. 07 Jan. 2012. lt;http://lmtruck. com/articles/weeklystory. aspx? storyid=179>. ROY,

REX. "Engine Wars: Gas Vs Diesel. " Popular Mechanics 187. 11 (2010): 50. Military & Government Collection. Web. 7 Jan. 2012. Vehicle Emission Reductions. OECD Publishing, 2003. "1973 Chrysler and Imperial Exhaust Emissions Book from the MasterTechnician's Service Conference (Session 308). " Online Imperial Club (OIC) for Imperial, Chrysler Imperial, and ChryslerNew Yorker Brougham Enthusiasts. Web. 07 Jan. 2012. <http://www. imperialclub. com/Repair/Lit/Master/308/page08. htm>.

Get an explanation on any task
Get unstuck with the help of our AI assistant in seconds
New