Complex Studies of the Innovative Vortex Burner Device with Optimization of Design

Baubek, Askar; Atyaksheva, Alexandra; Жумагулов, М. Г.; Nurlan, K.; Plotnikova, Inna; Chicherina, Nataliya

doi:10.1007/978-3-030-68103-6_13

Cited by 4 publications

(5 citation statements)

References 13 publications

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“…1 has limitations in terms of minimum dimensions and consequently minimum fuel consumption. Te obvious solution is that the device must have larger dimensions, similar to prototype [33]. Analysis of dependencies in Figure 10 shows that an optimum range of excess air values for Device no.…”

Section: Discussionmentioning

confidence: 99%

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Comparative Analysis of Swirl Burner and Cross Jet Burner in Terms of Efficiency and Environmental Performance

Zhumagulov,

Dolgov,

Baubek

et al. 2023

Journal of Combustion

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The article contains a comparative analysis of two types of burners used in different methods of fuel-air mixture preparation: (1) vortex mixing and (2) mixing with transverse jets. The analysis was carried out in order to determine which one of the two burning devices is more efficient and has better environmental performance. In device no. 1, conditions for the fuel-air mixture formation are created by vortex turbulence. The basic principle lying at the core of this design is a vortex flow inside, which provokes a more intense mixing of fuel and air. Moreover, preliminary physical and thermal treatment of the fuel-air mixture has a positive effect on its environmental performance. In contrast, in device no. 2 based on transverse jets’ active mixture formation is achieved through collision of air and fuel flows at an angle close to 90°. The research was based on an experiment carried out with the use of a laboratory firing stand. Flue gas samples were analyzed in order to compare the main harmful air emission indicators with TESTO 350-XL gas analyzer. A propane-butane mixture of 60% C3H8 (propane) and 40% C4H10 (butane) was used as the main fuel. Some indicators were determined after the experiment: measurement units conversion from “ppm” to “mg/m3,” excess air ratio α and equivalence ratio φ, flue gas concentrations recalculation taking oxygen into account, fuel calorific value, and heat release rate. The analysis results are as follows: (i) the swirl burner shows better performance in terms of nitrogen oxides (NOx) emissions; there is a 1.75-fold difference in total NOx emissions compared to the cross jet burner; (ii) the burner on transverse jets is 10 times more efficient than the swirl burner in terms of carbon monoxide (CO) emissions.

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Section: Discussionmentioning

confidence: 99%

“…Te authors of this article have made previous attempts to create a universal burner device in terms of fuel selection (prototype of device no. 1) [33].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Swirl Burner and Cross Jet Burner in Terms of Efficiency and Environmental Performance

Zhumagulov,

Dolgov,

Baubek

et al. 2023

Journal of Combustion

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“…In the presented case, pulverized coal is completely converted to volatile fuel gases, which proves not only the environmental effect but also the efficiency of the coal heating process with the preliminary release of volatile fuel gases. In this case, the authors of the work [11] propose to use pre-heating chambers with partial ignition and burnout of fuel. However, there were no studies of the volatile fuel gases output possibilities and their release conditions, which is undoubtedly important for many energy processes.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Identification of the low-rank coals thermal heating behavior

Mergalimova,

Atyaksheva,

Sultan

et al. 2024

EEJET

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In this study, the object of the research is low-rank coal during the process of thermal heating of five types: brown, high moisture brown, long-flame, coke weakly sintering and coke fusinite. In the research, when conducting thermal and gas analysis in inert media, the problem of using low-rank coal in the thermal heating process to obtain volatile fuel gases was solved by identifying the quantitative and qualitative performance of its behavior. Quantitative indicators are determined as the mass of thermal destruction products: the mass of coal tar and gas products and semi-coke under optimal temperature conditions of their maximum release. Qualitative indicators of coal behavior are components of thermal decomposition products. It is revealed that the behavior of low-rank coals in the process of thermal heating is determined by the degree of metamorphism. In this case, long-flame and brown coals have a lower release of volatile fuel gases than coke weakly sintering and coke fusinite coals due to a lower degree of metamorphism and greater degrees of thermal oxidation and dehydration. Thermal decomposition component ranges consisting of polyaromatic fragments (HCN, C6H12, C4H5N), greenhouse gases (CH4 and CO2), toxic gases (H2S and NH3) and synthesis gases (CO and H2) have the highest share of release. Optimal temperature conditions and ranges for the release of low molecular weight gases used as high calorific volatile fuel gases are obtained. The results can be used in the design, optimization and construction of thermal heating equipment, correction of gasification and pyrolysis processes. Moreover, they can be applied in localized coal tar spots minimization technologies and for designing targeted gases extraction

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“…Research of the technologies of installations and furnaces operated on low-grade solid fuels under conditions of using water with increased hardness have shown the need to debug the operating mode of the heating boiler, taking into account the combustion process, as a determining factor in the efficiency of oxidation of fuel elements and intensification of heat transfer in the device [1][2][3][4][5]. At the same time, the process of burning low-grade fuels is associated with environmental problems, primarily CO and CO2 emissions [6][7].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness analysis of Maikuben brown coal combustion in the heating boiler “Kamkor-300”

Atyaksheva

Atyaksheva²,

Ryvkina

et al. 2022

J. Phys.: Conf. Ser.

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This research presents the results of studying the efficiency of Maikuben brown coal combustion in low-power heating boilers using the case of the Kamkor-300 boiler. Improving the combustion efficiency of low-grade fuels is directly related to fuel economy and the decrease of toxic emissions into the atmosphere. The research results show the possibility of adjusting the boiler according to the “fuel-air” ratio in the furnace volume, without violation of its general heat exchange structure and changing the heat-transfer operation in the device. In the research the adjustment of the operation of a long-burning boiler with an upper air supply in order to increase the time of combustion gases dwell in the boiler furnace volume drum is proposed. It is also possible to reduce the excess air coefficient to 0.55 and to operate the boiler under conditions of oxygen deficiency. Under such conditions, in the presented boiler, additional synthesis gases are released during the combustion of low-grade coals, in particular of coal rank “B”, to obtain an additional thermal effect. The resulting thermal effect leads to an increase of the boiler efficiency and its operational and economic indicators.

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Complex Studies of the Innovative Vortex Burner Device with Optimization of Design

Cited by 4 publications

References 13 publications

Comparative Analysis of Swirl Burner and Cross Jet Burner in Terms of Efficiency and Environmental Performance

Comparative Analysis of Swirl Burner and Cross Jet Burner in Terms of Efficiency and Environmental Performance

Identification of the low-rank coals thermal heating behavior

Effectiveness analysis of Maikuben brown coal combustion in the heating boiler “Kamkor-300”

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