The mathematical description of the gasification process of woody biomass in installations with a plasma heat source for producing synthesis gas

Sadrtdinov, A.; Сафин, Р. Г.; Герасимов, М. К.; Петров, В. И.; Гильфанов, К. Х.

doi:10.1088/1757-899x/124/1/012092

Cited by 25 publications

(4 citation statements)

References 2 publications

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“…The acute problem of processing products of low rigidity is in mechanical engineering, in particular, aircraft industry, woodworking, processing of other materials [13][14][15][16][17][18][19]. The above mentioned fully applies to woodworking, in particular, to the milling of the profile surfaces of the peripheral segments resulting from the cutting of logs [20][21][22][23][24]. Profile milling of long and wide curvilinear surfaces with shaped cutters is out of competition with other technological methods due to high productivity and low cost of processing [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

The Processing of the Profile Surface of the Work-Pieces, Characterized by Low Rigidity

Фомин

Гусев

Тимербаев

2020

SSP

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This work indicates that the prediction of the geometric indicators of the quality of the machined surface in the design of technological operations for milling a profile surface of work-pieces with low rigidity is possible, on the basis of an analysis of the elastic displacements of the technological system elements, the flexural rigidity of the work-piece as a function of its initial dimensions, the locating chart and the physical and mechanical characteristics of the material being processed. The article describes the characteristics of the elements of the technological system for the profile milling of work-pieces of low rigidity; The analytical dependencies linking the elastic displacements of the work-piece during the processing of various wood species with elements of the milling mode and the design parameters of the mill are given. Extreme total elastic displacements of the technological system during the cutting process are determined. Mathematical models of the maximum geometric error of the machined surface, as a function of the work-piece's flexural rigidity and the spindle unit, are established. Based on the results of the analysis, recommendations for improving the accuracy of the product were developed.

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Section: Introductionmentioning

confidence: 99%

The Processing of the Profile Surface of the Work-Pieces, Characterized by Low Rigidity

Фомин

Гусев

Тимербаев

2020

SSP

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“…One of the benchmarks in the Energy Strategy of the Russian Federation for the period up to 2035 is sustainable energy development, which includes environmental safety and innovative development. The document also noted the unreasonably low share of the use of local fuels (including MSW) in regional energy balances [5][6][7][8]. The set of proposed measures to overcome the current practice includes: encouraging the reduction of the formation of new and utilization of accumulated waste; stimulation of scientific research and support for the development of promising technological solutions aimed at reducing the negative impact on the environment and environmental risks; new technologies for gasification of various raw materials, including biomass, MSW, etc [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Efficiency of biomass and solid waste energy processing based on the cogeneration plant with plasma heat source

et al. 2019

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The urgency of the use of low-grade organic fuels and wastes, in particular municipal solid (MSW), is due to recent developments in energy saving and energy efficiency. This directly relates to the direction of renewable energy, responsible for involving all wastes, such as MSW, in fuel energy balance to provide heat and electricity to decentralized power supply areas. This paper presents the process of hightemperature thermal decomposition of MSW in the steam-air medium of plasma under excessive pressure to generate electrical energy. The high enthalpy and great reactivity of the plasma gasifying agent makes it possible to carry out the process of thermal decomposition in the autothermal mode. The high-temperature mode and the use of plasma blast provides a high degree of conversion of waste into combustible components (CO, CH4, H2), the resulting gas mixture. The technological process significantly reduces the formation of potentially hazardous substances that affect the kinetics of the process. After generating electrical energy, the exhaust gases are subjected to complex purification from the products of combustion and cogeneration of residual thermal energy. In particular, purification from toxic nitrogen oxides (NOx) occurs, the formation of dioxins, furans and other dangerous derivatives of chloride compounds is prevented. Thermal energy, discharged at various sites of the plant, is almost completely used for the needs of the cogeneration plant and its units, which allows to achieve a total efficiency of at least 86%. The ability of the cogeneration plant to work on various types of solid waste gives a wide range of applications and operational capabilities.

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“…The use of shaping cutter allows to improve the utilization of the material [19,20], to reduce the waste occurring during milling of products widely used in various industries, including in woodworking [21,22]. In some industries, for example in wood working the recycling is an actual economic problem [23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Determining Undeformed Chip Thickness Models in Milling and its Verification during Wood Processing

Фомин

2017

SSP

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This paper presents a mathematical model of the maximum thickness and the chip area for the processes of cylindrical and profile milling of various materials, including wood. The analytical dependences connecting the geometry of the shear layer with the elements of the milling mode and cutter design parameters are determined. Also, a model of the volume of material removed from the surface of the workpiece during the milling profile is presented. The comparative calculations of the previously known models and the models developed by the author were done. It was found that the models of the geometric parameters of cutting layer presented in the article are adequate and can be used to calculate the energy performance of the wood milling process with cylindrical and shaping cutters. These models are suitable for use in the calculations of the processing parameters for a wide range of material: metals, wood, plastic, glass and others.

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The mathematical description of the gasification process of woody biomass in installations with a plasma heat source for producing synthesis gas

Cited by 25 publications

References 2 publications

The Processing of the Profile Surface of the Work-Pieces, Characterized by Low Rigidity

The Processing of the Profile Surface of the Work-Pieces, Characterized by Low Rigidity

Efficiency of biomass and solid waste energy processing based on the cogeneration plant with plasma heat source

Determining Undeformed Chip Thickness Models in Milling and its Verification during Wood Processing

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