Diesel fuel combustion by spraying in a superheated steam jet

Ануфриев, И. С.; Kopyev, E. P.

doi:10.1016/j.fuproc.2019.04.027

Cited by 50 publications

(27 citation statements)

References 39 publications

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“…In this work, our important finding is the effect of enhancing the capillary action with increasing temperature. The obtained results show a high potential of the created wicking material for cooling applications and provide the guidelines for the creation of other high-temperature wicking materials, including metals, ceramics, and polymers needed in such applications as Maisotsenko cycle (M-cycle) technologies [40,41], water steam injection systems for reducing both fuel consumption and NOx emissions of internal combustion engines [42,43], energy harvesting [44][45][46], enhancing the critical heat flux of industrial boilers [47], evaporation-driven engines [48], capillary micromolding [49,50], printed electronics [51], and capillary coatings [50].…”

Section: Introductionmentioning

confidence: 85%

“…This finding along with the high speed of liquid transport provides a way for solving the problem of dry-out spots in cooling devices of 5G electronics. Furthermore, the results of this work are of great significance for engineering high-temperature superwicking materials for heat/mass exchangers needed in such technologically important areas as M-cycle technologies for increasing efficiency of the power generation in gas turbines and reducing fuel consumption in internal combustion engines along with decreasing NO x emission [41][42][43].…”

Section: Discussionmentioning

confidence: 99%

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Temperature Effect on Capillary Flow Dynamics in 1D Array of Open Nanotextured Microchannels Produced by Femtosecond Laser on Silicon

Fang

Zhu

et al. 2020

Nanomaterials

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Capillary flow of water in an array of open nanotextured microgrooves fabricated by femtosecond laser processing of silicon is studied as a function of temperature using high-speed video recording. In a temperature range of 23–80 °C, the produced wicking material provides extremely fast liquid flow with a maximum velocity of 37 cm/s in the initial spreading stage prior to visco-inertial regime. The capillary performance of the material enhances with increasing temperature in the inertial, visco-inertial, and partially in Washburn flow regimes. The classic universal Washburn’s regime is observed at all studied temperatures, giving the evidence of its universality at high temperatures as well. The obtained results are of great significance for creating capillary materials for applications in cooling of electronics, energy harvesting, enhancing the critical heat flux of industrial boilers, and Maisotsenko cycle technologies.

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Section: Introductionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Temperature Effect on Capillary Flow Dynamics in 1D Array of Open Nanotextured Microchannels Produced by Femtosecond Laser on Silicon

Fang

Zhu

et al. 2020

Nanomaterials

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“…2(a). In [51], we described the choice of design and operational parameters of a laboratory burner (external burner diameter of 60 mm, height of 140 mm, and outlet diameter of 25 mm), studied thermal and environmental characteristics, and showed the advantages.…”

Section: Modernized Burnermentioning

confidence: 99%

“…This method of forming a two-phase combustible mixture has significant technical advantages associated with preventing the possibility of coking and clogging of the fuel supply channels, which improves operational characteristics and reliability of the burner and allows combustion of contaminated fuel and combustible liquid waste. The advantages of the proposed method are shown at the example of diesel fuel [51]: high completeness of fuel combustion and 30% reduction in NOx are achieved in comparison with the use of compressed air instead of steam. These results were obtained by the authors on a direct-flow burner.…”

Section: Introductionmentioning

confidence: 99%

Cleaner crude oil combustion during superheated steam atomization

et al. 2021

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Crude oil is an attractive fuel for energy production, since its use does not require additional processing costs. Existing technologies for burning liquid fuel do not always ensure the achievement of the modern ecological and energy performance when using highly viscous and substandard fuels. This relates to unstable ignition and combustion of such fuels in the combustion chamber, relatively fast coking of the burner surfaces, etc. The work deals with investigation of crude oil burning in a flow of superheated steam as a promising way to reduce nitrogen oxides (NOx) and increase the completeness of fuel combustion. The experiments were carried out using an original burner where liquid fuel is sprayed due to interaction with a high-velocity flow of superheated steam. This method of spraying allows the creation of a highly dispersed two-phase flow and prevents nozzle chocking and coking when using substandard fuel and waste. At the same time, steam gasification of products of fuel thermal decomposition allows the reduction of toxic emissions, increasing carbon burnout. The regimes of crude oil burning in a modernized burner that provide high completeness of fuel combustion (~44 MJ/kg) with a low content of nitrogen oxides and carbon monoxide in the combustion products have been determined. The amount of these toxic components corresponds to class 1 of EN 267. The results obtained confirm the effectiveness of the investigated method of fuel spraying by a superheated steam jet for environmentally friendly crude oil burning, including this process in the low-power burners (~15 kW). Such devices can be used for the cleaner elimination of liquid hydrocarbon waste with the receipt of thermal energy.

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“…Among the promising directions of development are: (1) the use of hydrogen, which represents one of the most promising renewable fuels due to its high energy density, low harmful emissions, and cost-efficiency [1,2]; (2) the improvement of fossil fuel combustion stability and efficiency via hydrogen addition [3]; and (3) fuel dilution with chemical inhibitors and inert heat carriers as a promising approach for reducing harmful emissions [4]. In the latter case, for example, water addition in the form of a spray [5] or within the emulsified fuel [6] defines the lower production of NO x . In all the mentioned cases, one should deal with complex multiphase systems, and one needs precise instruments of experimental diagnostics and numerical analysis to obtain a clear understanding of the processes and methods of their control.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Combustion and Detonation in Aqueous Foams

Киверин

Yakovenko

2021

Energies

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Combustible aqueous foams and foamed emulsions represent prospective energy carriers. This paper is devoted to the overview of model assumptions required for numerical simulations of combustion and detonation processes in aqueous foams. The basic mathematical model is proposed and used for the analysis of the combustion development in the wet aqueous foam containing bubbles filled with reactive gas. The numerical results agree with the recent experimental data on combustion and detonation in aqueous foams containing premixed hydrogen–oxygen. The obtained results allowed for distinguishing the mechanisms of flame acceleration, transition to detonation, detonation propagation, and decay.

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Diesel fuel combustion by spraying in a superheated steam jet

Cited by 50 publications

References 39 publications

Temperature Effect on Capillary Flow Dynamics in 1D Array of Open Nanotextured Microchannels Produced by Femtosecond Laser on Silicon

Temperature Effect on Capillary Flow Dynamics in 1D Array of Open Nanotextured Microchannels Produced by Femtosecond Laser on Silicon

Cleaner crude oil combustion during superheated steam atomization

Numerical Modeling of Combustion and Detonation in Aqueous Foams

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