Differences in the ignition characteristics of coal–water slurries and composite liquid fuel

Vershinina, K. Yu.; Glushkov, Dmitrii O.; Кузнецов, Г. В.; Стрижак, П. А.

doi:10.3103/s0361521916020117

Cited by 32 publications

(8 citation statements)

References 17 publications

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“…Besides having a negative influence on the ecosystem, they are also a serious fire hazard. Waste oil pollution is lasting, whereas remediation and countering of the negative effects are costly. , At present, liquid combustible waste is recycled using the following technologies: thermal desorption, complete hydrogenation, , and preparation of composite fuels . These technologies are economically efficient at major industrial centers with a developed infrastructure; using them at remote sites (such as mine fields) or at low production volumes is not sensible.…”

Section: Introductionmentioning

confidence: 99%

“…6,7 At present, liquid combustible waste is recycled using the following technologies: thermal desorption, complete hydrogenation, 8,9 and preparation of composite fuels. 10 These technologies are economically efficient at major industrial centers with a developed infrastructure; using them at remote sites (such as mine fields) or at low production volumes is not sensible. Thus, it is an important objective to develop methods of efficient recycling of liquid combustible waste at sites of its production, including areas with extreme climate conditions the Arctic and Antarctic regions.…”

Section: Introductionmentioning

confidence: 99%

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Oil-Filled Cryogels: New Approach for Storage and Utilization of Liquid Combustible Wastes

Vershinina

Glushkov

Nigay

et al. 2019

Ind. Eng. Chem. Res.

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A method of preparing oil-filled cryogels on the basis of an aqueous solution of poly(vinyl alcohol) (PVA) has been elaborated. The stability of primary oil emulsions and their rheological properties were analyzed for 30 days, as well as the mechanical properties of gel fuel pellets (obtained after 15 cycles of freezing/thawing of oil emulsions) with size of 20 mm for a group of compositions: 100−20 vol % aqueous solution of PVA (5, 10 wt %) + 0−80 vol % oil. The rheological behavior of non-Newtonian oil emulsions is described by the Herschel−Bulkley model. The elastic moduli and the tensile strength of fuel pellets of different component compositions range from 0.7 to 7.6 kPa and from 2.5 to 60 kPa, respectively. The oleophilic properties are more distinct for gel fuel prepared from oil emulsions with a higher content of the dispersed phase and lower concentrations of the polymer in the dispersion medium. The ignition mechanism and combustion characteristics have been established for processes occurring under the conditions of a radiant heat supply. Gel fuels, unlike combustible liquids, are characterized by a longer induction period, but a multicomponent structure of fuel caused microexplosions that enhance the combustion process.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Oil-Filled Cryogels: New Approach for Storage and Utilization of Liquid Combustible Wastes

Vershinina

Glushkov

Nigay

et al. 2019

Ind. Eng. Chem. Res.

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“…We considered the examples of the characteristics of the fuel microemulsions and their unobvious relationships. It is crucial to understand how some of the most important properties of the fuel microemulsions (stability, viscosity, ecology) that determine the large-scale research and development in fuel technology , influence the quantitative characteristics of secondary atomization as one of the pillars of the atomization technologies. , The latter issue is closely related to the opportunity to use alternative multicomponent fuels in enhanced ignition and combustion technologies . Understanding this relationship makes it possible to optimize the production of such fuels, including the selection of suitable concentrations of components, the method of their mixing, etc.…”

Section: Resultsmentioning

confidence: 99%

“…35,36 The latter issue is closely related to the opportunity to use alternative multicomponent fuels in enhanced ignition and combustion technologies. 37 Understanding this relationship makes it possible to optimize the production of such fuels, including the selection of suitable concentrations of components, the method of their mixing, etc. In addition, it is possible to reconfigure the parameters determining the secondary atomization, e.g., the temperature, material and structure of the contact surface, the angle of attack of the drops, their component composition, etc.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Synergistic Effect of the Fuel Microemulsion Characteristics on Drop Interaction with a Hot Wall

et al. 2021

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The utilization of fuel microemulsions helps in reducing harmful emissions, enhancing combustion efficiency, and preserving conventional fuels. This study is focused on the effect of the properties and phase behavior of water-in-diesel and water-in-biodiesel microemulsions that can be used as an alternative fuel on the droplet impingement dynamics of such fluids on a heated wall in the film boiling regime. The microemulsions represent complex fluids consisting of diesel fuel–rapeseed oil blends and distilled water with different mixture volume ratios. The emulsification is carried out using a mixture of a surfactant [isononylphenol poly(ethylene glycol) ether, PEG-6] and a co-surfactant (2-ethylhexanol) with a volume ratio of 9/1. The study considers the efficiency of the fuel samples in terms of the temperature-dependent viscosity and aggregate thermal stability as well as the quantitative characteristics of the spreading drop breakup, namely, mean diameter and number of ejected droplets. The fuel efficiency factor is derived to reveal the optimal samples. We test the phase behavior of the water–diesel fuel/rapeseed oil–PEG-6/2-ethylhexanol system in a wide temperature range. Comprehensive viscosity tests are carried out within the temperature ranges of stability to check the viscosity values of the developed microemulsions against the viscosity of the conventional diesel fuels.

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“…over the last years to create scientific basis for so-called composite fuels application in power engineering: coal-water [1,2] and organic coal-water slurry [3,4], fuel based on products of agricultural production [5,7], etc.…”

Section: Introductionmentioning

confidence: 99%

Analysis of composite fuel application possibility based on coal and oats husks in industrial power engineering

2017

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Abstract. Experimental studies were conducted to determine the energy and technical characteristics of composite fuels from T grade coal (Alardinsky deposit) and oats (Shegarsky district, Tomsk region). An effective concentration of composite fuel of 50% / 50% is established, at which the heat of combustion is reduced by less than 2%, the ash content is up to 44%, and the fly ash output is up to 48%.

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Differences in the ignition characteristics of coal–water slurries and composite liquid fuel

Cited by 32 publications

References 17 publications

Oil-Filled Cryogels: New Approach for Storage and Utilization of Liquid Combustible Wastes

Oil-Filled Cryogels: New Approach for Storage and Utilization of Liquid Combustible Wastes

Synergistic Effect of the Fuel Microemulsion Characteristics on Drop Interaction with a Hot Wall

Analysis of composite fuel application possibility based on coal and oats husks in industrial power engineering

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