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An Experimental Investigation on a Diesel Engine with Hydrogen Fuel Injection in Intake Manifold
Technical Paper
2008-01-1784
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
During the last decade the use of alternative fuels for diesel engine has received renewed attention. The interdependence and uncertainty of petroleum based fuel availability and environmental issues, most notably air pollution are among the principal forces behind the movement towards alternative sources of energy. The main pollutants from the conventional hydrocarbon fuels are unburned / partially burned hydrocarbon (UHC), carbon monoxide (CO), oxides of Nitrogen (NOx), smoke and particulate matter. These emissions are harmful to human, animal and plant life. Emissions from automobiles are currently a dominant source of air pollution representing 70 % of carbon monoxide, 41 % of oxides of Nitrogen (NOx), 38 % of hydrocarbon emissions globally. In addition 25 % of the man made CO2 emissions globally adds to the green house effect, which results in global warming. In the present investigation hydrogen is used in a diesel engine in the dual fuel mode using diesel as an ignition source. In order to have a precise control of hydrogen flow and to avoid the backfire and pre-ignition problems hydrogen was injected into the intake manifold.
Experiments were conducted to determine the optimized injection timing, injection duration and injection quantity of the fuel in manifold injected hydrogen operated engine using diesel as ignition source for hydrogen operations. From the results it is observed that the optimized condition is start of injection at gas exchange top dead center (GTDC) with injection duration of 30° CA with the hydrogen flow rate of 7.5 lpm.
The brake thermal efficiency is found to increase by 9 % compared to diesel. Smoke emissions decrease by 4 fold at full load compared to diesel. The NOx emission is almost similar in both hydrogen diesel dual fuel engine and diesel operated engine except at no load. The CO2 emissions decrease substantially by 2 fold at no load where hydrogen substitution is higher compared to full load. Manifold injection system with diesel as ignition source operates smoothly and shows improved performance and emits less pollution than diesel.
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Saravanan, N. and Nagarajan, G., "An Experimental Investigation on a Diesel Engine with Hydrogen Fuel Injection in Intake Manifold," SAE Technical Paper 2008-01-1784, 2008, https://doi.org/10.4271/2008-01-1784.Also In
References
- Das L.M. 2002 ‘Near-term Introduction of Hydrogen engines for automotive and agriculture application’ International Journal of Hydrogen Energy 27 479 487
- Das L.M. 2002 ‘Hydrogen engine: research and development (R & D) programmes in Indian Institute of Technology (IIT), Delhi’ International Journal of Hydrogen Energy 27 953 965
- Barreto L. Makihira A. Riahi K. 2003 ‘The hydrogen economy in the 21 st century: a sustainable development scenario’ International Journal of Hydrogen Energy 28 267 284
- Bohacik T. De Maria S. Saman W.Y. 1996 ‘Constant-volume adiabatic combustion of stoichiometric hydrogen-oxygen mixtures’ World Renewable Energy Congress 1996 1254 1257
- Alam M. Goto S. Sugiyama K. Kajiwara M. Mori M. Konno M. Motohashi M. Oyama K. 2001 ‘Performance and emissions of a DI diesel engine operated with LPG and ignition improving additives’ SAE Transactions 2001-01-3680 2446 2454
- Shudo T. Nakajima Yasuo Futakuchi Takayuki 2000 ‘Thermal efficiency analysis in a hydrogen premixed Combustion engine’ JSAE Transactions 21-2000 177 182
- Chen Z. Konno Mitsuru Goto Shinichi 2001 ‘Study on homogeneous pre mixed charge CI engine fuelled with LPG’ JSAE 20014339 265 270
- Shudo T. Yamada Hiroyuki 2006 ‘Hydrogen as an ignition-controlling agent for HCCI combustion engine by suppressing the low-temperature oxidation’ International Journal of Hydrogen Energy 4th Dec 2006 1 7
- Lee Jong T. Kim Y.Y. Caton Jerald A. 2002 ‘The development of a dual injection hydrogen fueled engine with high power and high efficiency’ 2002 Fall Technical Conference of ASME-ICED 8-11 Sep. 2002 2 12
- Garni M.A.L. 1995 ‘A simple and reliable approach for the direct injection of hydrogen in internal combustion engines at low and medium pressures’ International Journal of Hydrogen Energy 20 9 723 726
- Heffel J.W. 2003 ‘NOx emission reduction in a hydrogen fueled internal combustion engine at 3000 rpm using exhaust gas recirculation’ International Journal of Hydrogen Energy 28 1285 1292
- Weigang W. Zhang L. 1985 ‘The research on internal combustion engine with the mixed fuel of diesel and hydrogen’ International Symposium on Hydrogen Systems 2 7-11 May 1985 83 94
- Barreto L. Makihira A. Riahi K. 2003 ‘The hydrogen economy in the 21 st century a sustainable development scenario’ International Journal of Hydrogen energy 28 2003 267 284
- Frassoldati A. Faravelli T. Ranzi E. 2006 ‘A wide range modeling study of NO x formation and nitrogen chemistry in hydrogen combustion’ International Journal of Hydrogen energy 31 2006 2310 2328
- Masood M. Ishrat M.M. SReddy A. 2006 ‘Computational combustion and emission analysis of hydrogen-diesel blends with experimental verification’ International Journal of Hydrogen energy 32 2007 2539 2547
- Shudo T. Yamada Hiroyuki 2006 ‘Hydrogen as an ignition-controlling agent for HCCI combustion engine by suppressing the low-temperature oxidation’ International Journal of Hydrogen energy 32 2007 3066 3072
- Saravanan N. Nagarajan G. Narayanasamy S. 2007 ‘Experimental Investigation on Performance and Emission Characteristics of DI Diesel Engine with Hydrogen Fuel’ SAE 2007-26-030
- Saravanan N Nagarajan G. Dhanasekaran C. Kalaiselvan K M 2007 ‘Experimental Investigation of Hydrogen Fuel Injection in DI Dual Fuel Diesel Engine’ SAE 2007-01-1465