Improved combustion in high EGR dilution CNG engines and fuel reforming with exhaust gas

• Autorzy: Wyszyński M.L. , Megaritis A. , Allenby S. , Al-Ahmadi A. , Chang W-C. , Abu-Orf G. , Clarke S. , Davies M.J. , Richardson D. , Shillington S. A. C. , Wallace S. , Bhattacharya A. K. , Hayden P. , Sarginson J. S. , Frost J. C. , Golunski S. E.
• Języki publikacji: EN

Abstrakty

EN

The supplementation of compressed natural gas (CNG) fuel with a hydrogen-rich additive, via an exhaust gas reforming process, potentially offers significant improvements in cobustion stability and tolerance of exhaust gas recirculation (EGR). An experiment was conducted on a purpose built single-cylinder test engine to evaluate the envelope of benefit of hydrogen enrichment in terms of extended EGR tolerance. The tolerance of the stoichiometric CNG engine to EGR, measured in terms of combustion stability, is shown to be greatly extended by the hydrogen enrichment and corresponding improvements in engine emission were found. Further work was undertaken, using a micro-reactor test rig, to assess the exhaust-gas reforming process. The performance of prototype catalysts was found to correlate well with the hydrogen requirements indicated by the envelope of benefit testing.

• Wydawca: Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archivum Combustionis
• Rocznik: 2000
• Tom: Vol. 20 nr 3-4
• Strony: 19--29
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Wyszyński M.L.

• Future Power Systems Group, School of Manufacturing and Mechanical Engineering, The University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT

autor

Megaritis A.

• The University of Birmingham, UK

autor

Allenby S.

• The University of Birmingham, UK

autor

Al-Ahmadi A.

• The University of Birmingham, UK

autor

Chang W-C.

• The University of Birmingham, UK

autor

Abu-Orf G.

• The University of Birmingham, UK

autor

Clarke S.

• Rover Group Ltd, UK

autor

Davies M.J.

• Rover Group Ltd, UK

autor

Richardson D.

• Rover Group Ltd, UK

autor

Shillington S. A. C.

• Rover Group Ltd, UK

autor

Wallace S.

• Rover Group Ltd, UK

autor

Bhattacharya A. K.

• University of Warwick, UK

autor

Hayden P.

• University of Warwick, UK

autor

Sarginson J. S.

• University of Warwick, UK

autor

Frost J. C.

• Johnson Matthey plc. UK

autor

Golunski S. E.

• Johnson Matthey plc. UK

Bibliografia

• [1] JAMAL Y., WYSZYNSKI M.L.: On-board Generation of Hydrogen Rich Fuels - A Review, Int. J. Hydrogen Energy, ISSN 0360-3199,19, 7, (1994).
• [2] WEAVER C.S.: Natural Gas Vehicles - A Review of the State of the Art, SAE Paper 892133, Trans. SAE: Journal of Fuels and Lubricants, 98, (1989), pp 1190-1210.
• [3] HEYWOOD J.B.: Internal Combustion Engine Fundamentals, (McGraw-Hill, New York), 1988.
• [4] STONE R.: Introduction to Internal Combustion Engines, Third Edition, (Macmillan Press, Basingstoke and London), ISBN 0-333-74013-0, 1999, pp. 544-547.
• [5] PARKS F.B.: A Single-Cylinder Engine Study of Hydrogen Rich Fuels, SAE Paper 760099, Trans Society of Automotive Engineers, 85, section 1, (1976).
• [6] STEBAR R.F., PARKS F.B.: Emission Control with Lean Operation Using Hydrogen Supplemented Fuel, SAE Paper 740187, Trans. Society of Automotive Engineers, 83, section 1, (1974).
• [7] HOEKSTRA R.L., BLARIGAN P.V., et al.: NOx Emissions and Efficiency of Hydrogen, Natural Gas and Hydrogen/Natural Gas Blended Fuels, SAE Paper 961103, Trans. Society of Automotive Engineers, 1996.
• [8] SMITH J.A., BARTLEY G.J.J.: Stoichiometric Operation of a Gas Engine Utilising Synthesis Gas and EGR for NOx Control, ASME paper, ICE vol. 30-3, Spring Technical Conference, 1998.
• [9] JAMAL Y., WAGNER T., WYSZYNSKI M.L.: Exhaust Gas Reforming of Gasoline at Moderate Temperatures, International Journal of Hydrogen Energy, ISSN 0360-3199, 21, 6, (1996), pp.507-519.
• [10] WAGNER T., JAMAL Y., WYSZYNSKI M.L.: Advantages of Fractional Addition of Hydrogen to Internal Combustion Engines by Exhaust Gas Reforming. HYPOTHESIS Conference, June 26-29, 1995, University of Cassino, Cassino - Gaeta, Italy.