Performance, Combustion and Emission characteristics of a Manifold Injected HCNG-Biodiesel Dual Fuel Operation
Journal Title: International Journal of Automotive Engineering and Technologies - Year 2015, Vol 4, Issue 4
Abstract
Vehicular exhaust emission control and engine efficiency are the most important parameters in current engine design. The Euro V emission norms are directing the research towards developing new technologies for combating engine emissions. Natural gas has become a widely used alternative fuel due to its many advantages including its ready availability and its low emission levels. Addition of hydrogen to CNG improves the composition and properties of base fuel CNG. In the present work a diesel engine was converted to operate in dual fuel engine mode in which Hydrogen-compressed natural gas (HCNG) was injected into the intake manifold using a specially developed electronic control unit (ECU) while diesel/biodiesel was injected directly inside the combustion chamber during the compression stroke. Experimental investigations were then carried out on a single cylinder four stroke CI engine test rig operated in dual fuel mode using Diesel, Honge methyl ester (HOME), Jatropha methyl ester (JOME) as injected pilot fuels and HCNG as injected primary fuel. ECU was used for varying the injection timings and injection durations for HCNG injection while the optimum injection timing for diesel/biodiesel was maintained at 27°bTDC.The pilot fuel injection pressure was maintained at 230 bar.
Authors and Affiliations
Gireesh N. M. | B.V.B. College of Engineering and Technology, India, Nagaraj Ramalingayya Banapurmath*| B.V.B. College of Engineering and Technology, India, Prakash G. Tewari| B.V.B. College of Engineering and Technology, India
Keywords
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