Effects of ethyl-tert-butyl ether (ETBE) addition on the physicochemical properties of diesel oil and particulate matter and smoke emissions from diesel engines

Górski, K.; Sen, Asok K.; Lotko, W.; Swat, M.

doi:10.1016/j.fuel.2012.09.004

Cited by 31 publications

(13 citation statements)

References 32 publications

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“…In the studies, the central unit has been the single-cylinder AVL 5402 engine. It has often been used for studies on combustion processes with biofuels [23], or various additions to diesel oil such as rape methyl esters [24] or ethyl-tert-butyl ether [25]. Other studies have used it for emission analysis, for example, for neat mahua oil biodiesel blended with different proportions of octanol [26] or focused on the chemical features of diesel exhaust particles [27].…”

Section: Methodsmentioning

confidence: 99%

Repeatability of High-Pressure Measurement in a Diesel Engine Test Bed

Skrzek

Rucki

Górski

et al. 2020

Sensors

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This paper addresses the issue of metrological accuracy of instantaneous in-cylinder pressure measurement in a diesel engine test bed. In studies, the central unit has been the single-cylinder AVL 5402 engine. The pressure measurement was performed with a sensor designed for thermodynamic analysis, and the results were related to the crank angle, where two rotations corresponding to the four-stroke working cycle were denoted as angles between −360° and +360°. The novelty of this paper is the proposition of how to perform a type A uncertainty estimation of the in-cylinder pressure measurement and to assess its repeatability. It was demonstrated that repeatability of the measurement during the ignition process was difficult to estimate because of the phenomena that cannot ensure the repeatability conditions. To solve the problem, two methods were proposed. In one method, the pressure was measured in the subsequent cycles immediately after the ignition was turned off, and in another method, the engine was driven by a starter. The latter method provided maximal pressure values much lower than during usual tests. The obtained repeatability of measured pressure was %EV = 0.4%, which proved high capability of the evaluated measurement system.

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Section: Methodsmentioning

confidence: 99%

Repeatability of High-Pressure Measurement in a Diesel Engine Test Bed

Skrzek

Rucki

Górski

et al. 2020

Sensors

Self Cite

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“…A lot of studies are focused on renewable fuels such as biodiesel, selected alcohols (ethanol, methanol) as well as plant oils and their mixtures with n-hexane [13]. Additionally, selected ethers, including ethyl tert-butyl ether [7] and diethyl ether, are considered as possible fuels for diesel engines [6,8]. Thus, gaseous fuels such a liquid natural gas (LNG) as well as a compressed natural gas (CNG) are considered as another alternative fuel for diesel engines.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Harmful Chemical Compounds from Dual-Fuelled Diesel Engine

Šmigins¹,

Skrzek²,

Górska³

et al. 2020

Adv. Sci. Technol. Res. J.

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This paper investigated the impact of the exhaust gas recirculation on the concentration of selected harmful chemical compounds from the AVL 5402 research diesel engine powered with diesel fuel (DF) and compressed natural gas (CNG). The engine was operated in the dual fuel mode. It means that the engine was conventionally fuelled by regular diesel fuel and simultaneously by CNG dosed into the inlet pipe. The necessary tests were carried out for the mixtures containing 30, 50 and 70% of CNG (by energy content) in the total chemical energy delivered together with diesel fuel (DF) into the combustion chamber. The research was conducted for the stationary conditions of the engine operation at 1200 rpm and constant 1004 Joules of a fuel chemical energy delivered in each cycle into the combustion chamber. Under such conditions, the impact of the EGR rate changed in range of 0-50% on the emissions of selected unburned hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx) as well as particulate matter (PM), was evaluated. The obtained results confirmed that the EGR system is effective in the reduction of the NOx formation for all tested fuel mixtures. Nevertheless, it was found that the addition of CNG combusted in the diesel engine generates more harmful pollutants in comparison with diesel fuel. However, in some cases the concentration of NOx as well as PM was comparable or lower. It suggests that the combustion of CNG in diesels allows achieving environmental benefits. In this case, further optimization of the engine fuel supply system is necessary.

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“…Diesel engine emissions have gained considerable attention due to their health risks and environmental concerns, especially particulate matter and NOx (Górski et al, 2013). As such, after-treatment devices and in-engine techniques such as diesel particulate filters (DPFs) and exhaust gas recirculation (EGR), have been implemented in diesel engines in recent years to decrease particulate matter and NOx emissions (Lapuerta et al, 2012;Beatrice et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) applied to the chemical characterization of Diesel soot

2016

Global NEST Journal

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<div> <p>In this work, diesel soot has been characterized chemically using a diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) technique. Diesel soot samples were generated under combustion conditions reproducing the typical urban operating mode of a diesel engine. Initial experiments performed to ensure the repeatability of the Drifts analysis and the sample preparation method showed that the standard deviations were always lower than 20% for the DRIFTS analysis itself, and lower than 25% when sample preparation was included. This is of special interest as regards application of the DRIFTS technique for quantitative analysis. The functional groups on the soot surface were identified on the basis of the infrared bands observed in the spectra at room temperature, indicating that the diesel soot analyzed comprises a mixture of aromatic hydrocarbons, carboxylic compounds, hydroxyl species, ether groups, and methylene and methyl groups. Analyses were also carried out at different temperatures in the interval of 298-858 K in order to analyze the thermal stability of the functional groups, with carbonyl groups, lactones and ethers appearing to be the most thermally stable compounds. </p> </div> <p> </p>

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Effects of ethyl-tert-butyl ether (ETBE) addition on the physicochemical properties of diesel oil and particulate matter and smoke emissions from diesel engines

Cited by 31 publications

References 32 publications

Repeatability of High-Pressure Measurement in a Diesel Engine Test Bed

Repeatability of High-Pressure Measurement in a Diesel Engine Test Bed

Investigation of Harmful Chemical Compounds from Dual-Fuelled Diesel Engine

Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) applied to the chemical characterization of Diesel soot

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