Performance and Emission Evaluation in Dual-Fuel Engine Using Renewable Fuels for Pilot Injection

Bob-Manuel, K.D.H.; Crookes, Roy J.

doi:10.4271/2007-01-3605

Cited by 2 publications

(1 citation statement)

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“…Bob-Manuel et al [15] investigated the combustion characteristics of natural gas and hydrogen fueled compression ignition engine operated under stable conditions using either neat or emulsified rapeseed methyl ester (RME) for pilot ignition The results showed reduced NOX emissions at all test conditions using natural gas. Singh et al [16] conducted an experimental research on a single cylinder, four-stroke variable compression ratio, direct injection diesel engine using compressed natural gas (CNG)-Diesel dual fuel mode.…”

Section: Introductionmentioning

confidence: 99%

Performance and Emission Characteristics Analysis of Dual Fuel Compression Ignition Engine Using Natural Gas and Diesel

Ahmed

Zhou

Zhu

2018

International Journal of Thermodynamics

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The demand for higher output efficiencies, greater specific power output, increased reliability, and ever reduced emissions has been rising. One promising alternative is the use of a gaseous fuel as partial supplement to liquid fuel. In this study, the effects of diesel-natural gas substitution ratios on the engine performance parameters like brake specific fuel consumption (BSFC), and gaseous emissions of nitrogen oxides (NOX), hydrocarbons (HC), carbon monoxide (CO) and carbon dioxide (CO2) were investigated for natural gas-diesel fuel operation and then compared with the original diesel operation. The engine was modeled with GT-Power computational simulation tool. The diesel fuel was injected into the cylinder while natural gas was injected in to air -intake pipe then compressed together with air. The simulation was carried out at constant engine speed of 1800 rpm for four different natural gas fractions (15%, 25%, and 50% and 75%). NOX and CO2 emissions decreased sharply by more than 45% and 50% respectively in dual-fuel mode when compared to only diesel fuel mode. However, an increase was observed in CO and HC emissions in dual fuel mode. The results also indicated that higher BSFC and lower brake thermal efficiency (BTE) in dual fuel mode when compared to those of the corresponding diesel engine.

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Section: Introductionmentioning

confidence: 99%