The impact of the temperature of rapeseed oil methyl esters on nitrogen oxides emissions

Gracz, Weronika; Czechlowski, M.; Marcinkowski, Damian; Golimowski, Wojciech; Pochwatka, Patrycja

doi:10.1051/e3sconf/202017101002

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Hence, HVO with the lowest level of contaminants produces the least PM. FAME, due to fuel-bound oxygen is known to produce more NO x compared to its unoxygenated counterparts [9,10]. Interestingly, however, this has not been confirmed in this study, suggesting that local oxygen availability is not limiting the NO x formation and the mechanism is predominantly thermal-driven.…”

Section: Effects Of Fuel Pressure On Emissionscontrasting

confidence: 69%

Comparative study of combustion and emissions of diesel engine fuelled with FAME and HVO

Hunicz¹,

Krzaczek²,

Gęca³

et al. 2021

Combustion Engines

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This study investigates combustion and emission characteristics of a contemporary single-cylinder compression ignition engine fuelled with diesel, fatty acid methyl esters (FAME) and hydrotreated vegetable oil (HVO). These two drop-in fuels have an increasing share in automotive supply chains, yet have substantially different physical and auto-ignition properties. HVO has a lower viscosity and higher cetane number, and FAME has contrary characteristics. These parameters heavily affect mixture formation and the following combustion process, causing that the engine pre-optimized to one fuel option can provide deteriorated performance and excess emissions if another sustainable option is applied. To investigate the scale of this problem, injection pressure sweeps were performed around the stock, low NOX and low PM engine calibration utilizing split fuel injection. The results showed that FAME and HVO prefer lower injection pressures than diesel fuel, with the benefits of simultaneous reduction of all emission indicators compared to DF. Additionally, reduction of injection pressure from 80 MPa to 60 MPa for biodiesels at low engine load resulted in improved brake thermal efficiency by 1 percentage point, due to reduced parasitic losses in the common rail system.

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Section: Effects Of Fuel Pressure On Emissionscontrasting

confidence: 69%

Comparative study of combustion and emissions of diesel engine fuelled with FAME and HVO

Hunicz¹,

Krzaczek²,

Gęca³

et al. 2021

Combustion Engines

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Multifaceted Comparison Efficiency and Emission Characteristics of Multi-Fuel Power Generator Fueled by Different Fuels and Biofuels

et al. 2021

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The negative effect of liquid and gaseous fuel combustion is toxic gases (i.e., carbon and nitrogen oxides NOx) and particulate matter (PM) formation. The content of harmful and toxic components of exhaust gases is strongly dependent on the quality and type of burnt fuel. Experimental research is required to verify the use of current technical and technological solutions for the production of electricity on farms, using various types of conventional fuels and biofuels. The aim of the current research was to comprehensively verify the use of commonly available fuels and biofuels without adapting the internal combustion engine. Gaseous fuels—propane-butane mixture (LPG), compressed natural gas (CNG) and biogas (BG)—were added to liquid fuels—methyl esters of higher fatty acids (RME) and diesel fuel (DF)—in six different power configurations to evaluate the effect on the emission of toxic gases: carbon monoxide (CO), nitric oxide (NO), nitric dioxide (NO2) and particulate matter (PM), and the efficiency of fuel conversion. The use of RME in various configurations with gaseous fuels increased the emission of oxides and reduced the emission of PM. Increasing the share of LPG and CNG significantly increased the level of NO emissions. The use of gaseous fuels reduced the efficiency of the generator, particularly in the case of co-firing with DF. For medium and high loads, the lowest decrease in efficiency was recorded for the RME configuration with BG. Taking into account the compromise between individual emissions and the configuration of RME with BG, the most advantageous approach is to use it in power generators.

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The impact of the temperature of rapeseed oil methyl esters on nitrogen oxides emissions

Cited by 2 publications

References 9 publications

Comparative study of combustion and emissions of diesel engine fuelled with FAME and HVO

Comparative study of combustion and emissions of diesel engine fuelled with FAME and HVO

Multifaceted Comparison Efficiency and Emission Characteristics of Multi-Fuel Power Generator Fueled by Different Fuels and Biofuels

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