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Diesel Aftertreatment Systems: 2004-2007, A Cost Assessment
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 07, 2001 by SAE International in United States
Annotation ability available
This study assesses the exhaust aftertreatment technologies, and the costs thereof, required to achieve future emissions legislation. Firstly, a brief summary of the types of systems is addressed with a cost of implementation implicitly attached to each system of choice. The three major routes considered to meet the various legislated limits are: a diesel particulate filter coupled with EGR (exhaust gas recirculation), a selective catalytic reduction (SCR) system based on urea, and a combination of both a filter and SCR. The systems are reviewed with an emphasis on emissions reduction potential as well as possible diesel fuel savings where applicable. Secondly, the cost implications of using a secondary, water-based fuel (urea) on board diesel vehicles as a basis for NOx reduction via a simple discounted cash flow methodology are explored. By utilising the methodology described, various parameters such as fuel costs (both diesel and urea), annual mileage, fuel economy, and system cost can be varied and examined in detail. The ‘system’ costs are calculated throughout the vehicle life, within a practical framework, in order to assess the feasibility of implementing these advanced aftertreatment systems in the future. Other issues that are briefly considered include quantities of urea predicted to meet the needs of the systems, urea fuel storage and delivery aspects, and potential increase in urea production.
CitationWarren, J., "Diesel Aftertreatment Systems: 2004-2007, A Cost Assessment," SAE Technical Paper 2001-01-1948, 2001, https://doi.org/10.4271/2001-01-1948.
- Miller W, Klein JT, Mueller R, Doelling W, Zuerbig J, “The development of urea-SCR technology for US heavy duty trucks”, (2000) SAE technical paper 2000-01-0190.
- Havenith C, Cartellieri W, Zelenka P, “Development strategies to meet Euro 4 and 5 emissions standards for heavy duty diesel engines”, (1999) from Engine and Environment 99, Zero or near zero emissions?, pollutant emissions versus CO2 - conf. proc., Graz, 2-3 Sept. 1999, p. 159-178.
- Flynn P.F., Hunter G.L., Durrett R.P., Farrell L.A., Akinyemi W.C., “Chemistry limits on minimum in-cylinder NOx production for internal combustion engines”, presented at Inst. Mech. Eng., Dec. 2000, 21st Century emissions technology conference (in press).
- Chandler GR, Cooper BJ, Harris JP, Thoss JE, Uusimaki A, Walker AP, Warren JP, “An integrated SCR and CRT system to meet future NOx and PM legislation”, (2000) SAE technical paper 2000-01-0188.
- Khair M, Lemaire J, Fischer S, “Achieving heavy duty diesel NOx/PM levels below the EPA 2002 Standards-an integrated solution”, (2000) SAE technical paper 2000-01-0187.
- Report EC97TV-US, Vehicle Inventory and Use Survey (1997 economic census), US Census Bureau, issued October 1999. Available from internet on www.census.gov/svsd/www/97vehinv.html
- Nationwide and State-by-state motor fuel taxes (April 2000), by American Petroleum Institute. Available from internet on www.api.org/consumer/gastax00.pdf
- Current diesel fuel prices taken from the American Automobile Association website, www.aaa.com. For example, see gas prices under natinal newsroom, or access http://208.13.20831/index.asp directly.
- Annual Energy Outlook 2000, with projections to 2020, document Doe/EIA-0383(2000), Energy Information Administration, December 1999. Accessed on 14th November 2000, from www.eia.doe.gov/oiaf/aeo/pdf/0383(2000).pdf
- EPA Regulatory announcement Proposed Heavy-duty engine and vehicle standards and highway diesel fuel sulfur control requirements, fact sheet EPA420-F-00-022, dated 17 May, 2000, by Office of Transportation and Air Quality. [Accessed from: http://www.epa.gov/otaq/diesel.htm on 9 June, 2000].
- IFADATA statistics, July 2000, available from www.fertilizer.org provided by the International Fertilizer Industry Association, 28 rue Marbuef, Paris, and personal communication (11 December, 2000) with Putz C. Aholou (IFA).
- Walsh M.P., “Global trends in diesel emissions control- a 1999 update”, (1999) SAE technical paper 1999-01-0107.
- van der Steen M., Baert R.S.G., Verbeek R., “Technical and economical assessment of diesel and gas engine technology for enhanced environmentally friendly vechicles”, (2000), SAE technical paper 2000-01-1175. See especially Tables 8 and 9.