Journal ArticleDOI
Dual Fuel Performance Studies of a Small Diesel Engine Using Green Fuels
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TLDR
In this paper, the authors evaluated the performance of a biogas with jatropha bio-diesel as an ignition source in a compression ignition diesel engine at six different loads under dual fuel mode.Abstract:
The objective of this work is to review state of art practices and potential in diesel engines using greener fuels. Biogas with jatropha bio-diesel as ignition source was tested in a compression ignition diesel engine at six different loads under dual fuel mode. With a simple modification, the base engine was qualified to a dual fuel operation. For all the loads evaluated, dual fuel mode achieved a possible bio-diesel substitution of about 65%. In addition, it consumed lesser friction power as compared to the diesel mode during the operation. There were reductions in thermal efficiency, cylinder peak pressure and combustion noise under the dual fuel operation than the diesel mode due to lower burning velocity of biogas together with a longer pilot delay. However, this operation registered extremely lower NOx levels at all loads along-with reduced CO emissions at medium and higher loads. While significant increases in hydrocarbon emissions were observed.read more
Citations
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Journal ArticleDOI
Influence of Emulsified Palm Biodiesel as Pilot Fuel in a Biogas Run Dual Fuel Diesel Engine
TL;DR: In this paper, the authors explored the influence of emulsified palm biodiesel as a pilot fuel in a biogas run dual fuel engine and found that with the presence of a microexplosion, emulsification of biodiesel can increase the magnitude of the peak cylinder pressure (PCP) which increases the expansion ratio and hence improves engine efficiency.
Journal ArticleDOI
Effect of compression ratio and injection timing on the performance characteristics of a diesel engine running on palm oil methyl ester
TL;DR: In this article, the use of bio-origin fuels as renewable and environmentally benign sources of diesel fuel has been discussed, and concerns over environmental pollution are leading to the usage of bio origin fuels.
Journal ArticleDOI
Numerical Study of the Performance and Emission of a Diesel-Syngas Dual Fuel Engine
TL;DR: Based on the theory of direct relation graph (DRG) and the sensitivity analysis, a reduced mechanism for the diesel-syngas dual fuel was constructed as discussed by the authors, and three small thresholds were applied in the process of the detailed mechanism simplification by DRG, and a skeletal mechanism with 185 elements and the 832 elementary reactions was obtained.
Journal ArticleDOI
A Critique on the Research Activities and Potential Benefits of Dual-Fuel Diesel Engines Run on Biogas and Oxygenated Liquid Fuels
Achinta Sarkar,Ujjwal K. Saha +1 more
TL;DR: In this paper, the authors make an in-depth analysis to unveil the physical characteristics of the crucial parameters of DFM engines with specific reference to the use of biogas with ternary blends (TB) of diesel, biodiesel, and ethanol.
References
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Book
Internal combustion engine fundamentals
TL;DR: In this article, the authors describe real engine flow and combustion processes, as well as engine operating characteristics and their operation, including engine design and operating parameters, engine characteristics, and operating characteristics.
Journal ArticleDOI
Effect of engine parameters and type of gaseous fuel on the performance of dual-fuel gas diesel engines—A critical review
TL;DR: In this paper, the authors reviewed the performance, combustion and emission characteristics of dual-fuel engines which use natural gas, biogas, producer gas, methane, liquefied petroleum gas, propane, etc. as gaseous fuel.
Journal ArticleDOI
Use of hydrogen to enhance the performance of a vegetable oil fuelled compression ignition engine
TL;DR: In this paper, a single cylinder water-cooled direct-injection diesel engine designed to develop a power output of 3.7 kW at 1500 rev/min was tested under variable load conditions, with different quantities of hydrogen being inducted.
Journal ArticleDOI
Effect of hydrogen addition on the performance of a biogas fuelled spark ignition engine
TL;DR: In this article, hydrogen was added in small amounts (5, 10% and 15% on the energy basis) to biogas and tested in a spark ignition engine at constant speed at different equivalence ratios to study the effects on performance, emissions and combustion.
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