Experimental investigation of acoustic agglomeration of diesel engine exhaust particles using new created acoustic chamber

Kilikevičienė, Kristina; Kačianauskas, Rimantas; Kilikevičius, Artūras; Maknickas, Algirdas; Matijošius, Jonas; Rimkus, Alfredas; Vainorius, Darius

doi:10.1016/j.powtec.2019.09.057

Cited by 28 publications

(17 citation statements)

References 49 publications

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“…However, with environmental requirements (EURO pollution requirements in the European Union) becoming more stringent, they have become problematic for their high emissions of particulate matter [8]. Technological solutions (such as diesel particulate filters (DPFs)) as well as new types of fuel that emit less PM during combustion [9][10][11] have been used as solutions to reduce pollution.…”

Section: Introductionmentioning

confidence: 99%

Study of Indicators of CI Engine Running on Conventional Diesel and Chicken Fat Mixtures Changing EGR

et al. 2021

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This article presents a change in the indicators of a compression ignition (CI) engine by replacing conventional diesel fuel (D100) with pure chicken fat (F100) and mixtures of these fuels. Mixtures of diesel and fat with volume ratios of 70/30, 50/50 and 30/70 were used. Research of the fuel properties was conducted. In order to reduce the fuel viscosity, blends of fat and diesel were heated. The experimental research was conducted at different engine loads with exhaust gas recirculation (EGR) both off and on. The conducted analysis of the combustion process revealed a significant change in the rate of heat release (ROHR) when replacing diesel with chicken fat. Chicken fat was found to increase the CO2 and CO emissions, leaving hydrocarbon (HC) emissions nearly unchanged. Having replaced the D100 with diesel and chicken fat mixtures or F100, a significant reduction in smoke and nitrogen oxide (NOx) emissions was observed when EGR was off. When EGR was on, the smoke level increased, but the blends with chicken fat reduced it significantly, and the increased fat content in the fuel mixture reduced the NOx emissions. The engine’s brake specific fuel consumption (BSFC) increased while the brake thermal efficiency (BTE) decreased, having replaced conventional diesel with chicken fat due to differences in the fuel energy properties and the combustion process.

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Section: Introductionmentioning

confidence: 99%

Study of Indicators of CI Engine Running on Conventional Diesel and Chicken Fat Mixtures Changing EGR

et al. 2021

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“…All the fuels were found to follow a similar pattern, but after a more careful analysis, diesel emissions were found to be lower (1…4%) compared to emissions of other fuel blends. An earlier injection timing reduced the difference between NOx emissions of diesel and fuel blends [68][69][70][71].…”

Section: Ecological Indicatorsmentioning

confidence: 99%

Research of Energy and Ecological Indicators of a Compression Ignition Engine Fuelled with Diesel, Biodiesel (RME-Based) and Isopropanol Fuel Blends

2020

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This article presents the results of a study of energy and ecological indicators at different engine loads (BMEP) adjusting the Start of Injection (SOI) of a Compression Ignition Engine fuelled with blends of diesel (D), rapeseed methyl ester (RME)-based biodiesel and isopropanol (P). Fuel blends mixed at D50RME45P5, D50RME40P10 and D50RME30P20 proportions were used. Alcohol-based fuels, such as isopropanol, were chosen because they can be made from different biomass-based feedstocks and used as additives with diesel fuel in diesel engines. Diesel fuel and its blend with 10% alcohol have almost the same thermal efficiency (BTE). In further examination of energy and ecological indicators, combustion parameters were analysed at SOI 6 CAD BTDC using AVL BOOST software (BURN subprogram). Increasing alcohol content in fuel blends led to a reduced cetane number, which prolonged the ignition delay phase and intensified heat release in the premixed combustion phase. Higher combustion temperatures and oxygen content in the fuel blends increased NOx emissions. Lower C/H ratios and higher O2 levels affected by RME and isopropanol reduced smoke emissions.

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“…As regards the influence of oscillation frequency, sound with a frequency of 1000-1800 Hz has been effectively used. It was found that ultrafine fog droplets rapidly coagulated when exposed to oscillations with a frequency of 6000 Hz at a sound intensity of 148 dB [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

The Limits of Fine Particle Ultrasonic Coagulation

et al. 2021

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This paper describes the studies conducted in order to identify the limits of ultrasonic exposure’s effect on the fine particle coagulation process. It has been established as a result of the studies that ultrasonic exposure with a sound pressure level of 160 dB is capable of ensuring coagulation of particles sized 2.5 µm with efficiency δ = 83%. An increase of the coagulation up to 13% is induced with generation of swirling flows. The suggested approach to increasing the coagulation efficiency owing to vortex-type flows between the radiating and reflecting surfaces ensures efficiency of coagulation δ = 96 %. The implementation of this approach has shown that with generation of vortex-type acoustic flows, it makes the most sense for a concentration of particles of 18×10−3 g/m3. Incremental efficiency at such concentrations amounts to 50%.

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Experimental investigation of acoustic agglomeration of diesel engine exhaust particles using new created acoustic chamber

Cited by 28 publications

References 49 publications

Study of Indicators of CI Engine Running on Conventional Diesel and Chicken Fat Mixtures Changing EGR

Study of Indicators of CI Engine Running on Conventional Diesel and Chicken Fat Mixtures Changing EGR

Research of Energy and Ecological Indicators of a Compression Ignition Engine Fuelled with Diesel, Biodiesel (RME-Based) and Isopropanol Fuel Blends

The Limits of Fine Particle Ultrasonic Coagulation

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