KNOCKING AND PERFORMANCE CHARACTERISTICS OF LOW OCTANE PRIMARY REFERENCE FUELS BLENDED WITH METHANOL

Single cylinder SI engine tests were conducted with low octane primary reference fuel (PRF) blends and methanol. The investigated parameters were equivalence ratio, and PRF octane number ranging from 100 to 53 blended with weight percentages of methanol to 75 percent. In order to evaluate the performance of these different fuels, knock intensity, efficiency and emissions were considered. Methanol can act as an effective knock suppressant in primary reference fuel blends with octane numbers as low as 53. Generally methanol-PRF blends burning under optimized conditions yield a higher efficiency than either pure isooctane or pure methanol. Methanol-low octane PRF blends appear to burn with approximately the same emissions as isooctane.

• Supplemental Notes:
  • Prepared for the SAE meeting February 27-March 3, 1978.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Gething, J A
  • Lestz, S S
• Publication Date: 1978

Media Info

• Features: References;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Additives; Air pollution; Alcohols; Antiknock compounds; Blends; Control; Engines; Fuels; Gasification; Methanol; Motor fuels; Noise; Octane number; Performance; Vehicle power plants
• Old TRIS Terms: Additive compounds; Automobile engines; Engine noise; Octane rating
• Subject Areas: Energy; Environment; Geotechnology; Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 00177335
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: SAE# 780079 Proceeding
• Files: TRIS
• Created Date: Sep 27 1978 12:00AM