Neat polyoxymethylene dimethyl ether in a diesel engine; part 2: Exhaust emission analysis

Barro, Christophe; Parravicini, Matteo; Boulouchos, Konstantinos; Liati, Anthi

doi:10.1016/j.fuel.2018.07.108

Cited by 48 publications

(30 citation statements)

References 22 publications

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“…However, the observations in Fig. 5 refute the assumption of Barro et al, 29 i.e., that the particles forming the nucleation mode in OME exhaust are mostly of a solid nature. Based on the observations in Fig.…”

Section: Resultssupporting

confidence: 78%

“…28 Barro et al observed a similar peak in OME exhaust, located at the nuclei mode of diesel exhaust. 29 An additional investigation in that study using transmission electron microscopy (TEM) indicated that some of the observed particles below 20 nm consisted of soot and metal particles. They therefore assumed that the measured particles in this range were solid in nature, although the particle measurement device did not include a volatile particle remover.…”

Section: Introductionmentioning

confidence: 94%

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Particle emissions of a heavy-duty engine fueled with polyoxymethylene dimethyl ethers (OME)

Gelner

Rothe²,

Kykal³

et al. 2022

Environ. Sci.: Atmos.

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Section: Resultssupporting

confidence: 78%

Section: Introductionmentioning

confidence: 94%

Particle emissions of a heavy-duty engine fueled with polyoxymethylene dimethyl ethers (OME)

Gelner

Rothe²,

Kykal³

et al. 2022

Environ. Sci.: Atmos.

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“…Proposed fuel classes include, among others, cellulosic biofuels such as the furanic family [17 , 18] and synthetic fuels such as oxymethylene ethers (OMEs, CH 3 O(CH 2 O) n CH 3 ). The latter, attractive diesel replacement fuels, offer large pollutant reduction potential owing to their molecular structure featuring only C 1 units [21 , 22] . These oligomeric ether compounds can be synthesized through different steps from hydrogen (H 2 ) and CO 2 , best using electricity from renewables for hydrogen production.…”

Section: Setting the Stage: Combustion And Chemistry In Contextmentioning

confidence: 99%

Combustion in the future: The importance of chemistry

Kohse‐Höinghaus

2021

Proceedings of the Combustion Institute

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Combustion involves chemical reactions that are often highly exothermic. Combustion systems utilize the energy of chemical compounds released during this reactive process for transportation, to generate electric power, or to provide heat for various applications. Chemistry and combustion are interlinked in several ways. The outcome of a combustion process in terms of its energy and material balance, regarding the delivery of useful work as well as the generation of harmful emissions, depends sensitively on the molecular nature of the respective fuel. The design of efficient, low-emission combustion processes in compliance with air quality and climate goals suggests a closer inspection of the molecular properties and reactions of conventional, bio-derived, and synthetic fuels. Information about flammability, reaction intensity, and potentially hazardous combustion by-products is important also for safety considerations. Moreover, some of the compounds that serve as fuels can assume important roles in chemical energy storage and conversion. Combustion processes can furthermore be used to synthesize materials with attractive properties. A systematic understanding of the combustion behavior thus demands chemical knowledge. Desirable information includes properties of the thermodynamic states before and after the combustion reactions and relevant details about the dynamic processes that occur during the reactive transformations from the fuel and oxidizer to the products under the given boundary conditions. Combustion systems can be described, tailored, and improved by taking chemical knowledge into account. Combining theory, experiment, model development, simulation, and a systematic analysis of uncertainties enables qualitative or even quantitative predictions for many combustion situations of practical relevance. This article can highlight only a few of the numerous investigations on chemical processes for combustion and combustion-related science and applications, with a main focus on gas-phase reaction systems. It attempts to provide a snapshot of recent progress and a guide to exciting opportunities that drive such research beyond fossil combustion.

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“…These suitable characteristics explain the recent research interest in this specific group of oxygenated fuels in the field of kinetic mechanism development (Sun et al, 2017;He et al, 2018;Cai et al, 2019;Li et al, 2020;Bai et al, 2021;Niu et al, 2021), their application in engine simulations (Lin et al, 2019;Lv et al, 2019;Ren et al, 2019) or for different synthesis methods (Gierlich et al, 2020;Klokic et al, 2020), and the assessment of the overall carbon impact (Mahbub et al, 2019;Bokinge et al, 2020). The application of oxymethylene ethers in engines in combination with their emission propensity has been investigated in several studies (Pellegrini et al, 2013;Barro et al, 2018;Huang et al, 2018;Liu et al, 2019;Ren et al, 2019;LeBlanc et al, 2020;Parravicini et al, 2020;Pélerin et al, 2020), while fewer investigations have been conducted, notably, into soot formation for pure or blended OMEs in canonical flames (Ferraro et al, 2021;Tan et al, 2021). Hence, this work addresses the potential of oxymethylene ether-3 (OME 3 ) and its effect on soot particle formation and growth to deeply understand the soot suppression phenomenon in a simple configuration and in blending with a well-known fuel such as ethylene.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on the Effect of the Oxymethylene Ether-3 (OME3) Blending Ratio in Premixed Sooting Ethylene Flames

et al. 2021

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Synthetic fuels, especially oxygenated fuels, which can be used as blending components, make it possible to modify the emission properties of conventional fossil fuels. Among oxygenated fuels, one promising candidate is oxymethylene ether-3 (OME3). In this work, the sooting propensity of ethylene (C2H4) blended with OME3 is numerically investigated on a series of laminar burner-stabilized premixed flames with increasing amounts of OME3, from pure ethylene to pure OME3. The numerical analysis is performed using the Conditional Quadrature Method of Moments combined with a detailed physico-chemical soot model. Two different equivalence ratios corresponding to a lightly and a highly sooting flame condition have been investigated. The study examines how different blending ratios of the two fuels affect soot particle formation and a correlation between OME3 blending ratio and corresponding soot reduction is established. The soot precursor species in the gas-phase are analyzed along with the soot volume fraction of small nanoparticles and large aggregates. Furthermore, the influence of the OME3 blending on the particle size distribution is studied applying the entropy maximization concept. The effect of increasing amounts of OME3 is found to be different for soot nanoparticles and larger aggregates. While OME3 blending significantly reduces the amount of larger aggregates, only large amounts of OME3, close to pure OME3, lead to a considerable suppression of nanoparticles formed throughout the flame. A linear correlation is identified between the OME3 content in the fuel and the reduction in the soot volume fraction of larger aggregates, while smaller blending ratios may lead to an increased number of nanoparticles for some positions in the flame for the richer flame condition.

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Neat polyoxymethylene dimethyl ether in a diesel engine; part 2: Exhaust emission analysis

Cited by 48 publications

References 22 publications

Particle emissions of a heavy-duty engine fueled with polyoxymethylene dimethyl ethers (OME)

Particle emissions of a heavy-duty engine fueled with polyoxymethylene dimethyl ethers (OME)

Combustion in the future: The importance of chemistry

Numerical Investigation on the Effect of the Oxymethylene Ether-3 (OME3) Blending Ratio in Premixed Sooting Ethylene Flames

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