The effects of sodium sulfate on the emissions characteristics of an emulsified marine diesel oil-fired furnace

Water in Diesel Nano-Emulsions (WiDNE) fuel are an important environmental fuelsfor decreasing the combustion pollution of diesel engines. WiDNE fuel is a dispersionstable thermodynamic and kinetic system consisting of diesel oil, surfactant and waterphase. WiDNE fuel due to their nano scale droplet size (20–200 nm) and large surface areaburns more completely and hence a reduction in emissions than straight diesel.The objective of this project is to evaluate the combustion characteristics of WiDNE fuelprepared by rotor-stator homogenizer using mixed surfactants based on nonionicemulsifiers Span™ 80, Tween™ 80. Direct injection (DI), Fiat engine was used and run at1500 rpm, constant fuel pressure (400 bar) with varying the operation load.Multi gas analyzer model 4880 was used to measure the concentration of the emissiongases such as NOx, unburned total hydrocarbon HC, CO2 and CO. The AVL-415 meter wasused for smoke emissions. The experimental results of WiDNE imposes the capability toimprove fuel properties, the engine efficiency as well as reduction of gas emissions.

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“…One such approach is the use of emulsions of water-diesel which have an effect on several emission constituents [4,5,6].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation of Combustion Emissions and Diesel Engine Performance of Water in Diesel Nano Emulsion Fuel

Hamadi

Dhahad

Khudhur

2021

Journal of Petroleum Research and Studies

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“…However, diesel engines are also considered a major source of air pollution in port and urban areas because of their black smoke, HC, NOx, particulate matter (PM), CO, CO 2 , SOx emissions. The disgusting odor and noise from these engines may impair human health and the natural environment, such as ozone layer destruction, greenhouse effect enhancement and acid rain production [2][3][4]). While diesel engines are still the most common energy production equipment for ships, the air pollution threat caused by them cannot be neglected.…”

Section: Introductionmentioning

confidence: 99%

Investigation into the effects of fuel composition on the emission characteristics of a low-speed direct injection engine

Ibrahim¹,

Rufai²

2014

WIT Transactions on Ecology and the Environment

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This paper presents the results of an investigation into the effect of fuel composition on the emission characteristics of a four stroke, single cylinder, Viking super direct injection diesel engine run at different operating conditions using diesel fuel and soybean biodiesel blends (B15, B20 and B25). A PerkinElmer 2400 series CHNS/O elemental analyser was used in determining the fuel composition. Exhaust emission testing was conducted using Crowcon gas sensors to quantify the concentration of Nitrogen dioxide (NO2), carbon monoxide (CO) and sulphur dioxide (SO2) from the exhaust gases. The relationships between the exhaust emissions, engine speed, torque, throttle position and elemental fuel composition have been reported. The predictive model equations were developed using multiple regression analysis to predict exhaust emissions. The results show that the engine that is run on B15 gives the lowest levels of Nitrogen dioxide (NO2) emissions of 2.58 ppm, carbon monoxide (CO) emissions of 0.153 ppm and sulphur dioxide (SO2) emissions of 6.5 ppm when compared to other fuel blends. This outcome signals the possibility of using B15 as an alternative fuel to diesel for a healthier environment.

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“…Lin and Huang 1 humidified the air scavenging of a marine diesel engine that used a mixture of diesel oil and ethylene glycol monoacetate with a 90:10 ratio. Water-oil emulsified fuel 2,3 and water injection 4 also can reduce NOx concentration by emulsifying water to fuel oil or spraying water droplets in the combustion chamber when fuel is injected during combustion process. Another method is EGR.…”

Section: Introductionmentioning

confidence: 99%

The effects of Electrostatic Precipitator in EGR system on the combustion and exhaust gas of marine diesel engines

Ariana

Fujita

Nishida

et al. 2007

Journal of Marine Engineering & Technology

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Exhaust gas recirculation (EGR) is an effective way of reducing NOx, especially in the exhaust gas from automotive engines that has low particulate concentration, by suppressing the peak combustion temperature. Unlike automotive engines, exhaust gas from marine diesel engines that use low-grade fuel with high concentrations of sulphur and abrasive particles cannot be supplied to engine for EGR, unless the particulate is reduced. The author's previous research indicates that an electrostatic precipitator (ESP) can successfully reduce marine diesel particulate matter. Hence, in this research, a combined EGR and ESP system capable of simultaneously reducing NOx and particulate matter (PM) was developed. The exhaust gas that was treated by ESP was supplied to the air intake manifold under various conditions, and the results show that a combined EGR/ESP system reduces NO and PM concentrations in exhaust gas. The combination system also improves the rate of heat release.

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The effects of sodium sulfate on the emissions characteristics of an emulsified marine diesel oil-fired furnace

Cited by 21 publications

References 8 publications

An Experimental Investigation of Combustion Emissions and Diesel Engine Performance of Water in Diesel Nano Emulsion Fuel

An Experimental Investigation of Combustion Emissions and Diesel Engine Performance of Water in Diesel Nano Emulsion Fuel

Investigation into the effects of fuel composition on the emission characteristics of a low-speed direct injection engine

The effects of Electrostatic Precipitator in EGR system on the combustion and exhaust gas of marine diesel engines

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