Combined effect of compression ratio and diethyl ether (DEE) port injection on performance and emission characteristics of a DI diesel engine fueled with upgraded biogas (UBG)-biodiesel dual fuel

Barik, Debabrata; Murugan, S.; Samal, Susmita; Sivaram, N.M.

doi:10.1016/j.fuel.2017.08.015

Cited by 45 publications

(16 citation statements)

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“…The pilot dose is diesel fuel (DF) and the main fuel is biogas [42,43]. It was found that the proportion of BG in fuel has a positive effect on the level of harmful gas emissions but slightly lowers the efficiency of the engine at full load [44][45][46][47][48]. Studies on the simultaneous combustion of liquid and gas biofuels [44,49] have been conducted.…”

Section: Introductionmentioning

confidence: 99%

“…It was found that the proportion of BG in fuel has a positive effect on the level of harmful gas emissions but slightly lowers the efficiency of the engine at full load [44][45][46][47][48]. Studies on the simultaneous combustion of liquid and gas biofuels [44,49] have been conducted. Research has been carried out where spark ignition engines are used for research [50], as well as with compression ignition, often in the form of power generators [51,52].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Biogas and Waste Fats Methyl Esters on NO, NO2, CO, and PM Emission by Dual Fuel Diesel Engine

et al. 2019

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The aim of this study was to perform a comparative analysis of the unit gas emission value in the exhaust of a dual fuel diesel engine. The results of the effects of a diesel engine’s applications in biogas plants and the method for calculating mass gas emissions per unit of produced electricity are shown. The test was performed using a two-cylinder, naturally aspirated, liquid-cooled diesel engine. The diesel engine powered a generator connected to the grid. The engine was fed with liquid fuels—waste cooking oil methyl ester (UCOME) and diesel fuel (DF)—and with a gas fuel, biogas (BG). The engine ran at a constant rotational speed (2000 rpm ± 30 rpm) with variable load. The gas analyzer measured the amount of CO, NO, NO2, and PM (particulate matter) in exhaust gas. This gas content share was then converted to mass per engine generated energy unit. This experiment showed the effect of BG introduced to the intake manifold on fuel combustion, as well as an increase in CO and NO2 emission and decrease in NO and PM. In terms of dependence of exhaust emissions on the type of liquid fuel used, the use of UCOME as opposed to diesel fuel resulted in PM reduction and increase of NO emissions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of Biogas and Waste Fats Methyl Esters on NO, NO2, CO, and PM Emission by Dual Fuel Diesel Engine

et al. 2019

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“…Moreover, higher LHV of DEE brings a cooling impact, thus producing low combustion temperature in an engine cylinder contrasted to diesel mode, NO x emissions are reduced over the whole range of loads. 55 Hence, using DEE in a modified diesel engine shows promising results in lowering NO x emissions at the same time the performance of the engine also improves. Similar results have been perceived by various researchers in their studies.…”

Section: Resultsmentioning

confidence: 99%

Comparative assessment of di-ethyl ether/diesel blends on the performance, and emission characteristics in acetylene dual fuel engine

Raman

Kumar

2022

International Journal of Engine Research

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Many engine specialists have utilized various oxygenated blends such as methyl and ethyl esters, alcoholic fuels, and ether to boost the efficiency of dual fuel engine (DFE). However, there hasn’t been much study done to examine the effects of di-ethyl ether (DEE) in a gaseous fueled engine. Hence, in the present study, the author has examined the impact of the DEE/diesel mixture on the combustion, performance, and exhaust emissions in the acetylene-fueled customized engine. The acetylene is injected at 4 l/min (LPM) through the intake manifold while neat diesel, BD05, BD10, BD15, and BD20 blends are used as ignition sources at various engine loads. It is found that when the engine is operated with an ABD10 fuel combination the brake thermal efficiency (BTE) inclines by 1.7% as compared to standard diesel. The BTE is escalated due to an increased DEE proportion of up to 10% using BD10 pilot fuel at 80% load. However, further increasing the proportion of DEE results is a bit inferior in comparison to conventional diesel mode. Moreover, HC, CO, NOx, and smoke reduce considerably by 27%, 45%, 22%, and 43% respectively in comparison to neat diesel at 80% load while utilizing ABD10 fuel. This may be attributed to the superior physico-chemical properties of the pilot fuel blends permitting legitimate burning of the acetylene-air mixture. Additionally, it is also observed that consumption of neat diesel is decreased by 40% under high load using BD10 mixture as pilot fuel. Consequently, it is recommended to use DEE up to 10% with standard diesel in an acetylene-fueled engine for increasing BTE as well as to mitigate exhaust pollutants.

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“…Under the same settings (4 kW and B0), in the normal mode operation, the efficiency was 22% (Figure 2f). The decrease in efficiency in the dual mode might be due to the introduction of biogas into the engine cylinder, which diminishes the O2 concentration; therefore, the fuel conversion efficiency decreases, leading to incomplete combustion (Bora & Saha, 2015;Barik et al, 2017). Another reason might be the decrease in the flame propagation velocity and enhanced work of compression, leading to the induction of large amounts of air-biogas mixtures (Aithal, 2010).…”

Section: Sfc (G Kwmentioning

confidence: 99%

Comparison of Emissions and Engine Performance of Crambe Biodiesel and Biogas

et al. 2023

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The combination of crambe (Crambe abyssinica L.) biodiesel and biogas could be a renewable energy alternative for internal combustion engines. Therefore, the emissions and engine performance of crambe biodiesel blends (B0, B10, B30, B50, B75, and B100) were evaluated in both the dual mode (biogas) and normal mode (biodiesel). The tests were performed on a 5-kVA generator engine at loads ranging from 1 to 4 kW. The power generated in the normal mode was 17% lower than that generated in the dual mode. The dual mode showed a lower specific fuel consumption than the normal mode. In the normal mode, loss of power occurred as the proportion of biodiesel increased. Furthermore, nitrogen oxide emissions decreased with the addition of biogas. In the dual mode, the emissions increased as the biodiesel content increased. Carbon monoxide emissions decreased in both the normal and dual modes with an increase in biodiesel. The addition of biogas in the dual fuel mode with crambe biodiesel is an efficient alternative for partial substitution of diesel.

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Combined effect of compression ratio and diethyl ether (DEE) port injection on performance and emission characteristics of a DI diesel engine fueled with upgraded biogas (UBG)-biodiesel dual fuel

Cited by 45 publications

References 49 publications

Impact of Biogas and Waste Fats Methyl Esters on NO, NO2, CO, and PM Emission by Dual Fuel Diesel Engine

Impact of Biogas and Waste Fats Methyl Esters on NO, NO2, CO, and PM Emission by Dual Fuel Diesel Engine

Comparative assessment of di-ethyl ether/diesel blends on the performance, and emission characteristics in acetylene dual fuel engine

Comparison of Emissions and Engine Performance of Crambe Biodiesel and Biogas

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