Performance and Emission Characteristics of Supercharged Biomass Producer Gas-diesel Dual Fuel Engine

Hassan, Saima; Nor, Fethma M.; Zainal, Zulkarnain; Miskam, Muhamad Azman

doi:10.3923/jas.2011.1606.1611

Cited by 19 publications

(9 citation statements)

References 6 publications

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“…Under full load, decreasing the pilot injection quantity decreases CO emission, and increasing the pilot injection timing decreases CO emission under the most test conditions. Brake specific energy consumption (BSEC) is calculated by Equation (10) (Hassan, Mohd Nor, Zainal, & Miskam, 2011): In the dual-fueled engine, BSEC is a good parameter to compare two different fuels. Results of BSEC are shown in Figure 10.…”

Section: Resultsmentioning

confidence: 99%

Experimental and computational fluid dynamics-based numerical simulation of using natural gas in a dual-fueled diesel engine

Akbarian

Najafi

Jafari³

et al. 2018

Engineering Applications of Computational Fluid Mechanics

118

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In this paper, investigations were performed on a dual-fueled constant-speed engine. Initially, the emissions and performance of a diesel engine were investigated, and after moving to the dual-fuel engine, experimental tests were carried out under different loads (10, 25, 50, 75, and 100% of the full load) and pilot to gaseous fuel (PGF) ratios (30, 40, and 50%). The results showed that under different loads and PGF ratios, the emissions of nitrous oxides and particle materials in the dual mode were lower than those for the diesel engine, and that the difference was significant. The emission of carbon dioxide in the dual-fueled mode varied little compared to that of the diesel mode, although it was lower than that for the diesel engine. In loads lower than 75% of the full load, the emission of carbon monoxide in the diesel engine was lower than that for the dual-fueled engine. However, in full load, this result was reversed and had significant difference. The dual mode had lower hydrocarbon emission compared to that of the diesel mode in all PGF ratios and loads. A computational fluid dynamics-based numerical simulation was performed by KIVA3V, and its results showed good agreements with the experimental results under cylinder pressure. ARTICLE HISTORY

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Section: Resultsmentioning

confidence: 99%

Experimental and computational fluid dynamics-based numerical simulation of using natural gas in a dual-fueled diesel engine

Akbarian

Najafi

Jafari³

et al. 2018

Engineering Applications of Computational Fluid Mechanics

118

View full text Add to dashboard Cite

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“…These are spray-guided, wall-guided and air-guided combustion systems. 36,37 In this study, the combustion system is a spray-guided system that can create charge stratification at late injection and lean operation condition. A large piston bowl that creates fuel stratification in the chamber was used.…”

Section: Experimental Setup and Methodsmentioning

confidence: 99%

Effect of injection timing on combustion, performance and emissions of lean-burn syngas (H₂/CO) in spark-ignition direct-injection engine

Hagos

Aziz

Sulaiman

2016

International Journal of Engine Research

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This article is aimed at exploring syngas as an alternative fuel for the modern gas engines. It presents the experimental results on the effect of start of injection on combustion, performance and emissions of a direct-injection spark-ignition engine powered by syngas of H 2 /CO composition. The engine was operated with wide open throttle at minimum advance to achieve maximum brake torque. Two different start of injections were selected to represent before and after inlet valve closing and the excess air ratio (l) was set at 2.3. The engine operation at start of injection = 120°before top dead center was found to be best for combustion and performance at speed up to 2100 r/min. At engine speed higher than 2100 r/min, this start of injection does not permit maximum performance due to injection duration limitation. Hence, early injection at start of injection = 180°before top dead center was adopted at higher speed with better combustion and performance. Therefore, best performance of syngas in direct-injection spark-ignition engine could be attained by setting start of injection at 120°before top dead center for lower speeds and at 180°before top dead center for speed greater than 2100 r/min. Even though fast combustion of syngas suggested late injection for better combustion, performance and emissions, its lower calorific value resulted in operational limitations for direct-injection system particularly at higher speeds maintaining air-fuel ratio close to the stoichiometry.

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“…The engine performance with diesel fuel (DF) and producer gas (PG) was evaluated in terms of brake thermal efficiency (BTE), brake specific energy consumption (BSEC) and exhaust gas temperature (EGT) at no load, 1 kW, 2 kW, 3 kW and 4 kW of brake power [15].…”

Section: Performance Characteristics Of Diesel Enginementioning

confidence: 99%

Untitled

2018

IJET

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Increasing demand of fuel leads to increases in the fuel rates, due to depletion of the available fossil fuel. So, the need of alternative source of energy to meet the rural/urban demand. The combustible gas from agriculture biomass is plays a major potential sources for energy production. As an agriculture country, India has large biomass resources nearly 40 to 60 percentage of agriculture residues either put to inefficient use. Thermal combustion is a versatile thermo-chemical conversion process which produces a gas mixture of H 2 , CO and CH 4 that can be used for heat and power applications. In this work, a circulating bed gasifier was designed and developed to use rice husk as a feed stock. An investigation was also carried out to evaluate the performance and emission parameters of a CI engine developing rated power of 3.7 kW at a maximum speed of 1500rpm running on a dual fuel operation. The product gas was introduced in the inlet manifold of engine along with air flow rate at 40%, 60% and 80% load condition with respect to the full load. Diesel was injected into the engine as primary fuel and producer gas was injected as secondary fuel. The results obtained from the dual fuel mode were compared with standard primary fuel operation. Results indicated that a decrease in the consumption of diesel was observed upto 14 % when operated on dual fuel mode though there was a reduction in brake thermal efficiency. Oxides of nitrogen was found to be very low in dual fuel operation which is a great advantage over diesel alone, but CO and HC emission for dual fuel mode was found to be higher than diesel.

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Performance and Emission Characteristics of Supercharged Biomass Producer Gas-diesel Dual Fuel Engine

Cited by 19 publications

References 6 publications

Experimental and computational fluid dynamics-based numerical simulation of using natural gas in a dual-fueled diesel engine

Experimental and computational fluid dynamics-based numerical simulation of using natural gas in a dual-fueled diesel engine

Effect of injection timing on combustion, performance and emissions of lean-burn syngas (H₂/CO) in spark-ignition direct-injection engine

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Performance and Emission Characteristics of Supercharged Biomass Producer Gas-diesel Dual Fuel Engine

Cited by 19 publications

References 6 publications

Experimental and computational fluid dynamics-based numerical simulation of using natural gas in a dual-fueled diesel engine

Experimental and computational fluid dynamics-based numerical simulation of using natural gas in a dual-fueled diesel engine

Effect of injection timing on combustion, performance and emissions of lean-burn syngas (H2/CO) in spark-ignition direct-injection engine

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Effect of injection timing on combustion, performance and emissions of lean-burn syngas (H₂/CO) in spark-ignition direct-injection engine