EXHAUST EMISSIONS AND COLD STARTING OF A FOUR-CYLINDER ENGINE USING METHANOL AS FUEL

The paper reports the results of experiments to compare the performance of petrol and methanol in a standard production Ford 1098 cc Engine. The possibility of improving cold starting by the production of a fuel aerosol at the carburettor is discussed and work on an experimental spinning-cap-air-blast atomiser is described. At constant load conditions corresponding to speeds of 50 km/h and 80 km/h, nitric oxide emissions were considerably reduced but there was little change in the case of carbon monoxide. Emission of organic compounds, probably unburnt fuel, is also lower with methanol. The characteristic maldistribution of fuel between the cylinders of a single-carburettor engine is made considerably worse by the low volatility of methanol. Use of the atomiser, with very little development, improved the cold-start limit of the engine from 13 deg C to 7 deg C. A theoretical analysis suggests that sub-zero temperature starting should be possible when using methanol as a fuel. (TRRL)

  • Corporate Authors:

    Mechanical Engineering Publications Limited

    P.O. Box 24, Northgate Avenue
    Bury St Edmunds, Suffolk IP32 6BW,   England 
  • Authors:
    • Annand, WJD
    • Guelder, O L
  • Conference:
  • Publication Date: 1980-6

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 139-144
  • Serial:
    • Volume: 194

Subject/Index Terms

Filing Info

  • Accession Number: 00324666
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Sep 16 1981 12:00AM