A unique test program is described in which 10 intracity vehicles will run on liquefied natural gas for at least one year, in an effort to experiment with cleaner burning alternate fuels. Of the alternatives available, LNG seemed to be the best. LNG has a fairly high density: 625 cu ft of LNG takes up only 1 cu ft when liquefied. Natural gas is composed mainly of methane. It condenses to to a liquid state at -260 deg F. LNG vehicles use a vaporizer to convert the liquid fuel to a gaseous state for combustion. Electrically operated supply valves open when the engine is cranked, and insulated fuel lines carry liquid fuel to the vaporizer, which is heated by engine coolant. It is noted that the fuel economy is good for an alternative fuel: a gallon and a half of LNG provides about the same mileage as a gallon of gasoline, while 1.66 gallons of LNG is comparable to a gallon of diesel fuel. From a safety standpoing, LNG offers the advantage of being non-flammable in its liquid state.

  • Availability:
  • Corporate Authors:

    Chilton Company, Incorporated

    One Chilton Way
    Philadelphia, PA  United States  19089
  • Authors:
    • Richards, P
  • Publication Date: 1991-11

Media Info

  • Pagination: p. 59-60
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00618317
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 31 1992 12:00AM