An Experimental Study on the SO2 Reduction of Water 10% Mixed Emulsified Oil Applied to Boiler-Burner Using Bunker-C Oil

Ho, Lee Tae; Lee, Jeekeun

doi:10.13000/jfmse.2019.12.31.6.1801

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…O2ref is the The SO x concentration significantly decreased by approximately 62.7% from 113.2 ppm for EM0 to 50.5 ppm for EM25. This is because the sulfur content per unit volume of the fuel was reduced by an increased water content [19]. As the NO x and SO x concentrations were the actual measured values, and the O 2 concentration varied, their reduction effects were calculated by applying a 4% O 2 concentration correction factor, which is the standard O 2 concentration.…”

Section: Exhaust Gas Emission Characteristicsmentioning

confidence: 99%

“…In previous studies conducted by the authors of this study, emulsified fuel created by blending approximately 10.6% water with Bunker C oil was applied to a gun-type industrial boiler burner, and NOx and SOx emissions were reduced by approximately 30% [19,20]. Therefore, in this study, emulsified fuels created by blending water with Bunker C oil were applied to an actual marine boiler to analyze their effects on NOx, SOx, and CO2 emissions, which are typical exhaust gas emissions.…”

Section: Introductionmentioning

confidence: 98%

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Exhaust Gas Emission Improvements of Water/Bunker C Oil-Emulsified Fuel Applied to Marine Boiler

Lee¹,

Lee²,

Lee

2021

JMSE

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In this study, emulsified fuels were prepared and produced by blending 0%, 5%, 15%, and 25% water with Bunker C oil to reduce the amount of air pollution emitted by ships and replace oil resources, and they were applied to an actual marine boiler to analyze the exhaust gas. The fuel effects on the improvement in exhaust gas emissions were as follows: The oxygen (O2) concentration increased by up to 4.2%, and that of carbon dioxide decreased by approximately 2.1%. Under the standard O2 concentration of 4%, the concentration of nitrogen oxides decreased by up to 31.41%, and that of sulfur oxides decreased by up to 37.47%. However, the exhaust gas temperature decreased by approximately 14.3%, and the combustion efficiency decreased by approximately 2.6%. Comparing the emission improvements, the combustion performance of the emulsified fuels was close to that of the conventional Bunker C fuel. These results indicate that the application of water-emulsified fuels to a marine boiler can reduce the amounts of certain air pollutants.

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Section: Exhaust Gas Emission Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Exhaust Gas Emission Improvements of Water/Bunker C Oil-Emulsified Fuel Applied to Marine Boiler

Lee¹,

Lee²,

Lee

2021

JMSE

Self Cite

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Mixing Properties of Emulsified Fuel Oil from Mixing Marine Bunker-C Fuel Oil and Water

Lee

Cho

Lee

2022

JMSE

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Alternative marine fuels are needed to help reduce the exhaust emissions of ships. In this study, we performed an analysis to verify the potential applicability of a fuel based on Bunker-C oil, a low-grade marine heavy oil, as a novel alternative marine fuel. Bunker-C oil and water were mixed in the presence of a 0.8–1.2% emulsifier in four steps from 0% to 25% to produce a special type of emulsified fuel oil. Confocal microscopy images of samples after stabilization for approximately three days at room temperature showed no variation in the pattern at the 0% condition with no water, but a relatively homogenous mixed state of water droplets was found across all domains at the 5–25% conditions. The open-source software Image-J indicated the extraction of 166, 3438, and 5636 water droplets with mean diameters of 1.57, 1.79, and 2.08 μm, as well as maximum diameters of 7.31, 21.41, and 25.91 μm, at the 5%, 15%, and 25% conditions, respectively. For all three conditions, the mean particle diameter was approximately 2 μm, below the 20 μm reported in previous studies, with uniform distributions. This suggests that the mixed state was adequately homogenous.

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An Experimental Study on the SO2 Reduction of Water 10% Mixed Emulsified Oil Applied to Boiler-Burner Using Bunker-C Oil

Cited by 2 publications

References 6 publications

Exhaust Gas Emission Improvements of Water/Bunker C Oil-Emulsified Fuel Applied to Marine Boiler

Exhaust Gas Emission Improvements of Water/Bunker C Oil-Emulsified Fuel Applied to Marine Boiler

Mixing Properties of Emulsified Fuel Oil from Mixing Marine Bunker-C Fuel Oil and Water

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