This article discusses the planned Euro 3 diesel engine exhaust emission limits, which some engineers consider too costly to be feasible. The two main alternative approaches to meeting the ever stricter limits are more engine development and changing to a different fuel, both of which would bring higher operating costs. This fact became evident at a recent conference at the Institution of Mechanical Engineers in London, which examined how powertrain and fuel technologies are going to meet emission standards. Diesel engine manufactures have met Euro 2 emission standards, due to come into force in October 1996, with varying degrees of difficulty. Compared withe Euro 2, Euro 3 limits, in gm per Kwh, are within only four years expected to cut carbon monoxide emissions from 4.0 to 2.5, hydrocarbons from 1.1 to 0.7, nitrogen oxides from 7 to 5, and particulates from 0.15 to 0.10. Possible revisions by the European Parliament are unlikely to relax them. Even stricter Euro 4 limits are expected by 2005, with further 30% cuts. Some experts forecast a heavy cost in fuel dispensing, fuel carriage, and fuel consumption, if gas engines have to be made, because of inability to achieve the ambitious standards for diesel engines. However, di-methyl ether (DME) is a possible alternative fuel that could improve this situation.

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  • Corporate Authors:

    Institute of Road Transport Engineeers

    1 Cromwell Place
    London SW1 25F,   England 
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  • Publication Date: 1996-8


  • English

Media Info

  • Pagination: p. 28-9
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00729751
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Dec 26 1996 12:00AM