Performance, emission and combustion characteristics of CI engine fuelled with diesel and hydrogen

Hydrogen (H2) is being considered as a primary automotive fuel and as a replacement for conventional fuels. Some of the desirable properties, like high flame velocity, high calorific value motivate us to use hydrogen fuel as a dual fuel mode in diesel engine. In this experiment, hydrogen was inducted in the inlet manifold with intake air. The experiments were conducted on a four stroke, single cylinder, water cooled, direct injection (DI), diesel engine at a speed of 1500 r/min. Hydrogen was stored in a high pressure cylinder and supplied to the inlet manifold through a water-and-air-based flame arrestor. A pressure regulator was used to reduce the cylinder pressure from 140 bar to 2 bar. The hydrogen was inducted with a volume flow rate of 4l pm, 6l pm and 8l pm, respectively by a digital volume flow meter. The engine performance, emission and combustion parameters were analyzed at various flow rates of hydrogen and compared with diesel fuel operation. The brake thermal efficiency (BTE) was increased and brake specific fuel consumption (BSFC) decreased for the hydrogen flow rate of 8l pm as compared to the diesel and lower volume flow rates of hydrogen. The hydrocarbon (HC) and carbon monoxide (CO) were decreased and the oxides of nitrogen (NOx) increased for higher volume flow rates of hydrogen compared to diesel and lower volume flow rates of hydrogen. The heat release rate and cylinder pressure was increased for higher volume flow rates of hydrogen compared to diesel and lower volume flow rates of hydrogen.

[1]  Mihaylov Milen,et al.  INVESTIGATION OF THE EFFECTS OF HYDROGEN ADDITION ON PERFORMANCE AND EXHAUST EMISSIONS OF DIESEL ENGINE , 2004 .

[2]  Jan Macek,et al.  Application of Advanced Simulation Methods and Their Combination with Experiments to Modeling of Hydrogen Fueled Engine Emission Potentials , 2002 .

[3]  Clay S. Bell,et al.  An experimental investigation of incomplete combustion of gaseous fuels of a heavy-duty diesel engine supplemented with hydrogen and natural gas , 2012 .

[4]  B Haragopala Rao,et al.  Hydrogen for dual fuel engine operation , 1983 .

[5]  Y. Y. Kim,et al.  An Investigation of a Cause of Backfire and Its Control Due to Crevice Volumes in a Hydrogen Fueled Engine , 2001 .

[6]  Toshio Shudo,et al.  Applicability of heat transfer equations to hydrogen combustion , 2002 .

[7]  Soo-Chul Lee,et al.  Combustion characteristics of intake port injection type hydrogen fueled engine , 1995 .

[8]  L. Das.  Hydrogen engine: research and development (R&D) programmes in Indian Institute of Technology (IIT), Delhi , 2002 .

[9]  Jiro Senda,et al.  A study of direct injection diesel engine fueled with hydrogen , 2003 .

[10]  Bryan Willson,et al.  Hydrogen for Reducing Emissions from Alternative Fuel Vehicles , 1993 .

[11]  G. Nagarajan,et al.  Performance and emission study in manifold hydrogen injection with diesel as an ignition source for different start of injection , 2009 .

[12]  Toshio Shudo,et al.  Hydrogen as an ignition-controlling agent for HCCI combustion engine by suppressing the low-temperature oxidation , 2007 .

[13]  J. Abraham,et al.  Wall Interactions of Hydrogen Flames Compared with Hydrocarbon Flames , 2007 .

[14]  L. M. Das,et al.  Near-term introduction of hydrogen engines for automotive and agricultural application , 2002 .

[15]  G. Nagarajan,et al.  Performance and emission studies on port injection of hydrogen with varied flow rates with Diesel as an ignition source , 2010 .

[16]  K. Riahi,et al.  The hydrogen economy in the 21st century: a sustainable development scenario , 2003 .

[17]  M. Masood,et al.  Computational combustion and emission analysis of hydrogen–diesel blends with experimental verification , 2007 .

[18]  S. Chandra,et al.  Hot wire ignition of hydrogen-oxygen mixtures , 1996 .

[19]  B. Nagalingam,et al.  Use of hydrogen to enhance the performance of a vegetable oil fuelled compression ignition engine , 2003 .

[20]  Roger Sierens,et al.  Aspects concerning the optimisation of a hydrogen fueled engine. , 2001 .

[21]  Jerald A. Caton,et al.  The Development of a Dual Injection Hydrogen Fueled Engine With High Power and High Efficiency , 2002 .

[22]  A. Boretti.  Advances in hydrogen compression ignition internal combustion engines , 2011 .

[23]  S. R. Bell,et al.  Extension of the lean operating limit for natural gas fueling of a spark ignited engine using hydrogen blending , 1997 .

[24]  J. Houseman,et al.  A TWO-CHARGE ENGINE CONCEPT: HYDROGEN ENRICHMENT , 1974 .

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

[26]  Kyoungdoug Min,et al.  The optimised mixture formation for hydrogen fuelled engines , 2000 .