Combustion analysis of a spark ignition engine fueled with gaseous blends containing hydrogen

Abstract This paper presents the combustion characteristics of a naturally aspirated spark ignition engine, intended for installation in vehicles, fueled with different hydrogen and methane blends. The experimental tests were carried out in a wide range of speeds at equivalence ratios of 1, 0.8 and 0.7 and at full load. The ignition timing was maintained for each speed, independently of the equivalence ratio and blend used as fuel. Four methane-hydrogen blends were used. In-cylinder pressure, mass fraction burned, heat released and cycle-by-cycle variations were analyzed as representative indicators of the combustion quality. It was observed that hydrogen enrichment of the blend improve combustion for the ignition timing chosen. This improvement is more appreciable at low speeds, because at high speeds hydrogen effect is attenuated by the high turbulence. Also, hydrogen addition allowed the extension of the LOL, enabling the engine to run stable in points where methane could not be tested. The main inconvenience detected was the high NO x emissions measured, especially at stoichiometric conditions, due mainly to the increment in the combustion temperature that hydrogen produces.

[1]  Yong Li,et al.  Experimental study on thermal efficiency and emission characteristics of a lean burn hydrogen enriched natural gas engine , 2007 .

[2]  Konstantinos Boulouchos,et al.  Increase of passenger car engine efficiency with low engine-out emissions using hydrogen-natural gas mixtures : A thermodynamic analysis , 2007 .

[3]  J. Wallace,et al.  Exhaust emission and energy consumption effects from hydrogen supplementation of natural gas , 1995 .

[4]  Jungsoo Park,et al.  A numerical study of a methane-fueled gas engine generator with addition of hydrogen using cycle sim , 2011 .

[5]  Zuo-hua Huang,et al.  Combustion Characteristics and Heat Release Analysis of a Spark-Ignited Engine Fueled with Natural Gas−Hydrogen Blends , 2007 .

[6]  F. Moreno,et al.  H2−CH4 Mixtures Produced by Carbon-Catalyzed Methane Decomposition as a Fuel for Internal Combustion Engines† , 2010 .

[7]  Kirk Collier,et al.  Experimental study of a clean burning vehicle fuel , 1995 .

[8]  Roger Sierens,et al.  Effects of Supercharging, EGR and Variable Valve Timing on Power and Emissions of Hydrogen Internal Combustion Engines , 2008 .

[9]  Peter Van Blarigan,et al.  NOx Emissions and Efficiency of Hydrogen, Natural Gas, and Hydrogen/Natural Gas Blended Fuels , 1996 .

[10]  Roger Sierens,et al.  Increasing the power output of hydrogen internal combustion engines by means of supercharging and exhaust gas recirculation , 2009 .

[11]  N. Kahraman,et al.  Internal combustion engines fueled by natural gas—hydrogen mixtures , 2004 .

[12]  Christian Bock,et al.  The New 12-Cylinder Hydrogen Engine in the 7 Series: The H2 ICE Age Has Begun , 2006 .

[13]  Patrik Soltic,et al.  S.I. engine fuelled with gasoline, methane and methane/hydrogen blends: Heat release and loss analysis , 2009 .

[14]  Bing Liu,et al.  Study of cycle-by-cycle variations of a spark ignition engine fueled with natural gas–hydrogen blends , 2008 .

[15]  Jorge Fernández Arroyo,et al.  Modifications of a Spark ignition Engine to Operate with Hydrogen and Methane Blends , 2010 .

[16]  Bing Liu,et al.  Combustion characteristics of a direct-injection engine fueled with natural gas–hydrogen blends under different ignition timings , 2007 .

[17]  Fanhua Ma,et al.  Study on the extension of lean operation limit through hydrogen enrichment in a natural gas spark-ignition engine , 2008 .

[18]  F. Moreno,et al.  SUNFLOWER METHYL ESTER AS A FUEL FOR AUTOMOBILE DIESEL ENGINES , 1999 .

[19]  Andrea Unich,et al.  Numerical evaluation of internal combustion spark ignition engines performance fuelled with hydrogen – Natural gas blends , 2012 .

[20]  R. Steeper,et al.  The hydrogen-fueled internal combustion engine : a technical review. , 2006 .

[21]  Xin Zhang,et al.  Experimental study of a single-cylinder engine fueled with natural gas–hydrogen mixtures , 2010 .

[22]  Shuwei Huang,et al.  Improving the combustion performance of lean hydrocarbon mixtures by hydrogen addition , 1994 .

[23]  Yu Wang,et al.  Study on combustion behaviors and cycle-by-cycle variations in a turbocharged lean burn natural gas S.I. engine with hydrogen enrichment , 2008 .

[24]  M. Muñoz,et al.  Engine diagnosis method based on vibration and acoustic emission energy , 2012 .

[25]  R. Sierens,et al.  Variable composition hydrogen/natural gas mixtures for increased engine efficiency and decreased emissions , 2000 .

[26]  Philip John Bowen,et al.  Laminar-burning velocities of hydrogen-air and hydrogen-methane-air mixtures : An experimental study , 2006 .

[27]  Yu Wang,et al.  Combustion and emission characteristics of a port-injection HCNG engine under various ignition timings , 2008 .

[28]  T. W. Forest,et al.  Effect of hydrogen addition on the performance of methane-fueled vehicles. Part I: effect on S.I. engine performance , 2001 .

[29]  Nafiz Kahraman,et al.  Experimental study on a spark ignition engine fuelled by methane–hydrogen mixtures , 2007 .

[30]  John B. Heywood,et al.  Internal combustion engine fundamentals , 1988 .

[31]  Aiyagari Ramesh,et al.  Intake charge dilution effects on control of nitric oxide emission in a hydrogen fueled SI engine , 2007 .

[32]  Wan Mohd Ashri Wan Daud,et al.  Hydrogen production by methane decomposition: A review , 2010 .

[33]  Zuo-hua Huang,et al.  Experimental study on combustion characteristics of a spark-ignition engine fueled with natural gas–hydrogen blends combining with EGR , 2009 .

[34]  Bing Liu,et al.  Combustion behaviors of a direct-injection engine operating on various fractions of natural gas-hydrogen blends , 2007 .

[35]  J M Mallikarjuna,et al.  Effect of water injection and spark timing on the nitric oxide emission and combustion parameters of a hydrogen fuelled spark ignition engine , 2007 .

[36]  Ghazi A. Karim,et al.  Methane-hydrogen mixtures as fuels , 1996 .

[37]  Nafiz Kahraman,et al.  Investigation of combustion characteristics and emissions in a spark-ignition engine fuelled with natural gas–hydrogen blends , 2009 .

[38]  Fanhua Ma,et al.  Performance and emission characteristics of a turbocharged spark-ignition hydrogen-enriched compressed natural gas engine under wide open throttle operating conditions , 2010 .

[39]  Bing Liu,et al.  Experimental investigation on performance and emissions of a spark-ignition engine fuelled with natural gas–hydrogen blends combined with EGR , 2009 .