HYDROGEN ADDITION TO INTERNAL COMBUSTION ENGINES: REACTION ENGINEERING, PROCESS SYSTEM, EXHAUST GAS EMISSIONS AND FUEL ECONOMY

VAETGASTILLSATS VID FOERBRAENNINGSMOTORER: PROCESSTEKNIK, PROCESSSYSTEM, AVGASEMISSIONER OCH BRAENSLEEKONOMI

The purpose of this project is to develop a method for generating hydrogen gas for injection into an internal combustion engine. A lean air/fuel ratio makes it possible to run the engine with reduced pollutant emissions and good fuel economy. Hydrogen injection is one way to run the engine with a lean air/fuel ratio. The system comprises an onboard hydrogen generator. The hydrogen is produced from methanol reacting with steam in recirculated exhaust gas over a ni-catalyst. The energy for the endothermic reaction is supplied by waste heat from the exhaust gas stream. It has been shown that the hydrogen production runs the engine with a leaner air/fuel ratio. Methanol in the reactor, however, produces enough hydrogen for leaner operation. A theoretical study of the required amount of recirculated exhaust gas was made, and the energy efficiency of the reactor was calculated. The produced and required amounts of hydrogen were also calculated. A stationary test engine using the system is presented. The system shows high potential for running an internal combustion engine with low pollutant emissions and energy efficiency. (TRRL)

  • Corporate Authors:

    Kungliga Tekniska Hoegskolan

    Institutionen foer Kemisk Teknologi, Fack
    Stockholm,   Sweden 
  • Authors:
    • Sjoestroem, K
  • Publication Date: 1980-3-21

Language

  • Swedish

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 40 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00324787
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM