Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2019-9-3
V. V.
Purpose. Clarify the size and direction of cutting the soil, taking into account the influence of the coordinates of the instantaneous center of the disk on the rotation of its diameter at the time of its location in a vertical position. Methods. Using the provisions of physics, theoretical mechanics and resistance of materials. Results. The influence of the coordinates of the location of the instantaneous center of the disk on the angle of cutting of the soil by the points of the blade of the disk and the vectors of their trajectory in the soil medium is established, which makes it possible to more accurately determine the value of the angle of cutting of the soil depending on the parameters and operating modes of the spherical disk working body, and its smallest possible value was used in as an evaluation criterion in the selection and justification of rational parameters and operating modes of disk harrows. It has been established that the cutting angle γcut increases with decreasing angle of inclination of the disk β and an increase in the angle of attack α'. Conclusions 1. The direction of movement of the points of the blade of the disk in the soil medium is clarified due to the rotation of the diameter of the disk at the moment of its vertical location under the influence of the coordinates of the instant center, this is confirmed by the profile of the formation of the bottom of the furrow with a notched disk of the working body. 2. A refined dependence is obtained for determining the angle of soil cutting by the points of the blade of a spherical disk working body, which combines all its parameters and the smallest possible value of the angle of soil cutting, and the expediency of its use in the selection and justification of rational parameters of the working bodies of the disk harrow. Keywords: soil, soil environment, the spherical disc working body, the points of the blade of the disk, the speed of movement of points of the blade of the disk, the cutting angle of the soil, the angle of attack, the angle of inclination of the disk to the vertical.
{"title":"The results of research to clarify the process of cutting soil spherical disk working body","authors":"V. V.","doi":"10.37204/0131-2189-2019-9-3","DOIUrl":"https://doi.org/10.37204/0131-2189-2019-9-3","url":null,"abstract":"Purpose. Clarify the size and direction of cutting the soil, taking into account the influence of the coordinates of the instantaneous center of the disk on the rotation of its diameter at the time of its location in a vertical position.\u0000Methods. Using the provisions of physics, theoretical mechanics and resistance of materials.\u0000Results. The influence of the coordinates of the location of the instantaneous center of the disk on the angle of cutting of the soil by the points of the blade of the disk and the vectors of their trajectory in the soil medium is established, which makes it possible to more accurately determine the value of the angle of cutting of the soil depending on the parameters and operating modes of the spherical disk working body, and its smallest possible value was used in as an evaluation criterion in the selection and justification of rational parameters and operating modes of disk harrows. It has been established that the cutting angle γcut increases with decreasing angle of inclination of the disk β and an increase in the angle of attack α'.\u0000Conclusions\u00001. The direction of movement of the points of the blade of the disk in the soil medium is clarified due to the rotation of the diameter of the disk at the moment of its vertical location under the influence of the coordinates of the instant center, this is confirmed by the profile of the formation of the bottom of the furrow with a notched disk of the working body.\u00002. A refined dependence is obtained for determining the angle of soil cutting by the points of the blade of a spherical disk working body, which combines all its parameters and the smallest possible value of the angle of soil cutting, and the expediency of its use in the selection and justification of rational parameters of the working bodies of the disk harrow.\u0000Keywords: soil, soil environment, the spherical disc working body, the points of the blade of the disk, the speed of movement of points of the blade of the disk, the cutting angle of the soil, the angle of attack, the angle of inclination of the disk to the vertical.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"57 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120908017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2021-14-4
Yu. G. Vozhik, P. Vitrukh, V. Panasyuk, S. Maranda
Annotation Purpose. Improving the quality of field spraying by using an air curtain to counteract the negative impact of wind on the quality of this process. Methods. Theoretical substantiation and experimental verification of its results. Results. The method of wind resistance, structural and functional scheme of the device to the sprayer for its implementation are substantiated and an experimental test is carried out, which confirmed the significant effectiveness of the proposed method. Conclusions. By applying a new method to reduce the negative impact of wind on the quality of field spraying, a device for spraying to create an air curtain was developed and tested, which allowed to almost double (up to 10 m/s) the allowable wind speed for this operation compared to better analogues without deterioration quality indicators of their work. Keywords: plant protection, spraying, wind, air curtain, sprayer device, parameters, operating mode.
{"title":"Ways to reduce the negative effects of wind on the quality of field spraying","authors":"Yu. G. Vozhik, P. Vitrukh, V. Panasyuk, S. Maranda","doi":"10.37204/0131-2189-2021-14-4","DOIUrl":"https://doi.org/10.37204/0131-2189-2021-14-4","url":null,"abstract":"Annotation\u0000Purpose. Improving the quality of field spraying by using an air curtain to counteract the negative impact of wind on the quality of this process.\u0000Methods. Theoretical substantiation and experimental verification of its results.\u0000Results. The method of wind resistance, structural and functional scheme of the device to the sprayer for its implementation are substantiated and an experimental test is carried out, which confirmed the significant effectiveness of the proposed method.\u0000Conclusions. By applying a new method to reduce the negative impact of wind on the quality of field spraying, a device for spraying to create an air curtain was developed and tested, which allowed to almost double (up to 10 m/s) the allowable wind speed for this operation compared to better analogues without deterioration quality indicators of their work.\u0000Keywords: plant protection, spraying, wind, air curtain, sprayer device, parameters, operating mode.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122355481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2019-10-4
V. Panasyuk, V. Pyatachenko
Purpose. Improving the quality of spraying field crops, reducing losses of chemicals of spraying and improving the environmental safety. Methods. Analytical and experimental. Results. Analytical dependences are obtained, which make it possible to determine the droplet velocity depending on their diameter and working pressure. Conclusions. With increase in diameter of the droplet and the liquid pressure in the spray increases the time during which it reaches the speed of hovering and increases the path which will pass a drop until its speed reaches the hovering velocity. These data can be used to justify the rational parameters of the sprayer. Keywords: dispersion of spray, meteorological factors, spraying, droplet settling, spray, rate hovering.
{"title":"Investigation of the regularity of sedimentation of liquid droplets during field crop spraying","authors":"V. Panasyuk, V. Pyatachenko","doi":"10.37204/0131-2189-2019-10-4","DOIUrl":"https://doi.org/10.37204/0131-2189-2019-10-4","url":null,"abstract":"Purpose. Improving the quality of spraying field crops, reducing losses of chemicals of spraying and improving the environmental safety.\u0000Methods. Analytical and experimental.\u0000Results. Analytical dependences are obtained, which make it possible to determine the droplet velocity depending on their diameter and working pressure.\u0000Conclusions. With increase in diameter of the droplet and the liquid pressure in the spray increases the time during which it reaches the speed of hovering and increases the path which will pass a drop until its speed reaches the hovering velocity. These data can be used to justify the rational parameters of the sprayer.\u0000Keywords: dispersion of spray, meteorological factors, spraying, droplet settling, spray, rate hovering.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128776328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2022-15-19
Mironenko V. G., Veremeychyk N. V.
Purpose. Improving the efficiency of agricultural production by creating a reliable energy supply system and reducing the negative impact on the environment. Methods. Methods of system analysis and design of technical systems. Results. General principles of building an efficient system of using natural and own renewable energy sources in agriculture. Structure and parameters of the energy supply system of agro-industrial production. Conclusions 1. Ukraine faces the task of increasing the share of renewable energy in its total energy balance almost 3 times over the next 15 years – from 8 to 25%. 2. From the standpoint of various areas and the complexity of the organization of application, availability of raw materials and opportunities for the necessary maintenance of certain advantages in rural areas has solid biofuels. 3. The integrated indicator of the advantage of the mobile line of granulation of solid biofuels over stationary in rural areas is determined by the ratio of 3.9: 1. Keywords: agricultural production, renewable energy, efficiency.
{"title":"Biological fuels in agro-industrial production of Ukraine","authors":"Mironenko V. G., Veremeychyk N. V.","doi":"10.37204/0131-2189-2022-15-19","DOIUrl":"https://doi.org/10.37204/0131-2189-2022-15-19","url":null,"abstract":"Purpose. Improving the efficiency of agricultural production by creating a reliable energy supply system and reducing the negative impact on the environment.\u0000Methods. Methods of system analysis and design of technical systems.\u0000Results. General principles of building an efficient system of using natural and own renewable energy sources in agriculture. Structure and parameters of the energy supply system of agro-industrial production.\u0000Conclusions\u00001. Ukraine faces the task of increasing the share of renewable energy in its total energy balance almost 3 times over the next 15 years – from 8 to 25%.\u00002. From the standpoint of various areas and the complexity of the organization of application, availability of raw materials and opportunities for the necessary maintenance of certain advantages in rural areas has solid biofuels.\u00003. The integrated indicator of the advantage of the mobile line of granulation of solid biofuels over stationary in rural areas is determined by the ratio of 3.9: 1.\u0000Keywords: agricultural production, renewable energy, efficiency.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130504603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2021-13-17
V. Deshko, V. Kuzmenko, S. Subota
Annotation Purpose. Experimental establishment of regularities of the process of drying chicken manure due to the use of exhaust air from the poultry house. Methods. The experimental research is based on methods of experiment planning and static processing of the obtained data. Calculations, processing of experimental data, modeling and graphical display of dependencies were performed using application software for Windows: Microsoft Excel. Results. The number of conveyors for drying fresh chicken litter with a layer of 3, 7 and 10 cm with air with a temperature of 30–35 °C and 20–22 °C using a bubble air from the poultry house is determined. Conclusions 1. The construction-technological scheme of the experimental sample of technical means for drying of chicken manure by means of exhaust air from a poultry house is developed. 2. Experimental studies of the process of loading manure across the width of the perforated pallet (sieve). It is established that the greatest uniformity of 88% is provided by the conveyor with the bilateral screw for distribution. 3. It was experimentally determined that in the process of drying with exhaust air with a temperature of 30–35 °С and a constant speed of 4.1–4.6 m/s in the summer, the humidity of chicken manure from the initial 68 % decreased to the required 15 % in 22 hours. In the cold season, at an air temperature of 20–22 °С, with the same air speed for 22 hours, the humidity of the manure decreased from 68 % to 20 %, which indicates the need to heat the air to achieve drying time to the required humidity of 15 %. Keywords: chicken manure, exhaust air, heat flow, poultry house, poultry farming, utilization methods, drying, poultry waste.
{"title":"Experimental studies of the process of drying chicken manure with exhaust air from the poultry house","authors":"V. Deshko, V. Kuzmenko, S. Subota","doi":"10.37204/0131-2189-2021-13-17","DOIUrl":"https://doi.org/10.37204/0131-2189-2021-13-17","url":null,"abstract":"Annotation\u0000Purpose. Experimental establishment of regularities of the process of drying chicken manure due to the use of exhaust air from the poultry house.\u0000Methods. The experimental research is based on methods of experiment planning and static processing of the obtained data. Calculations, processing of experimental data, modeling and graphical display of dependencies were performed using application software for Windows: Microsoft Excel.\u0000Results. The number of conveyors for drying fresh chicken litter with a layer of 3, 7 and 10 cm with air with a temperature of 30–35 °C and 20–22 °C using a bubble air from the poultry house is determined.\u0000Conclusions\u00001. The construction-technological scheme of the experimental sample of technical means for drying of chicken manure by means of exhaust air from a poultry house is developed.\u00002. Experimental studies of the process of loading manure across the width of the perforated pallet (sieve). It is established that the greatest uniformity of 88% is provided by the conveyor with the bilateral screw for distribution.\u00003. It was experimentally determined that in the process of drying with exhaust air with a temperature of 30–35 °С and a constant speed of 4.1–4.6 m/s in the summer, the humidity of chicken manure from the initial 68 % decreased to the required 15 % in 22 hours. In the cold season, at an air temperature of 20–22 °С, with the same air speed for 22 hours, the humidity of the manure decreased from 68 % to 20 %, which indicates the need to heat the air to achieve drying time to the required humidity of 15 %.\u0000Keywords: chicken manure, exhaust air, heat flow, poultry house, poultry farming, utilization methods, drying, poultry waste.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132558470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2019-9-19
V. M., B. D., K. O., Kononogov, Yu.
Purpose. Justification of rational parameters of hardening of the working bodies of tillage machines by the method of electro arc processing. Methods. The experimental, mathematical and statistical, monographic. Results. The technology of local hardfacing, which improves the wear resistance of the surfaces of the parts of modification with the use of electro arc processing and with additional point hardfacing with the use of variations in processing modes, various technological methods and materials for adaptation to specific operating conditions. Conclusions 1.According to the results of theoretical studies, the heat balance of the process of electrical contact processing was determined, which allows to determine the most significant factors affecting the energy performance of the process, namely, the controlled voltage U of the arc process of electrical contact processing. 2.According to the results of experimental studies, rational values of the controlled voltage U in the process of electro arc processing within 35–55 V were established, which ensures surface roughness in the range from 0.4 to 1.0 mm. Keywords: electro arc processing, hardfacing, heat balance, parts of tillage machines, regimes, roughness, wear resistance.
{"title":"Increased durability parts of tillage machines, adapted to soils of different types","authors":"V. M., B. D., K. O., Kononogov, Yu.","doi":"10.37204/0131-2189-2019-9-19","DOIUrl":"https://doi.org/10.37204/0131-2189-2019-9-19","url":null,"abstract":"Purpose. Justification of rational parameters of hardening of the working bodies of tillage machines by the method of electro arc processing.\u0000Methods. The experimental, mathematical and statistical, monographic.\u0000Results. The technology of local hardfacing, which improves the wear resistance of the surfaces of the parts of modification with the use of electro arc processing and with additional point hardfacing with the use of variations in processing modes, various technological methods and materials for adaptation to specific operating conditions.\u0000Conclusions\u00001.According to the results of theoretical studies, the heat balance of the process of electrical contact processing was determined, which allows to determine the most significant factors affecting the energy performance of the process, namely, the controlled voltage U of the arc process of electrical contact processing.\u00002.According to the results of experimental studies, rational values of the controlled voltage U in the process of electro arc processing within 35–55 V were established, which ensures surface roughness in the range from 0.4 to 1.0 mm.\u0000Keywords: electro arc processing, hardfacing, heat balance, parts of tillage machines, regimes, roughness, wear resistance.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133803687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2019-9-18
O. Dovbnenko, I. Kolesnik
Purpose. Improving the efficiency of the air purification process through the use of the created design and determining the rational parameters of the luminescent ultraviolet bactericidal air recirculator for livestock buildings. Methods. Methods of analysis, mathematical modeling and engineering methods for calculating irradiation installations are used. Results. The methods of application of ultraviolet bactericidal (UVB) plants for purification and disinfection of the air environment in agricultural premises are analyzed. Impact mechanism established of UVB radiation and ozone for pathogenic microflora and harmful impurities in the air of livestock premises is substantiated. The grounded design, the method of engineering calculation and the technical parameters of the UVB air recirculator are determined. Experimental samples of UVB recirculators of air in livestock buildings were made and the results of their production tests are presented. Conclusions. UVB recycle converter with application of luminescent UVB lamps with installed capacity = 180 W and air capacity = 1800 m3/h provides bactericidal efficiency = 75%, and with = 1000 m3/h – bactericidal efficiency = 90%. Keywords: recirculator, ultraviolet, bactericidal, ozone, air purification, disinfection, microclimate of livestock buildings.
{"title":"Development of ultraviolet bactericidal recirculator for air purification of livestock buildings","authors":"O. Dovbnenko, I. Kolesnik","doi":"10.37204/0131-2189-2019-9-18","DOIUrl":"https://doi.org/10.37204/0131-2189-2019-9-18","url":null,"abstract":"Purpose. Improving the efficiency of the air purification process through the use of the created design and determining the rational parameters of the luminescent ultraviolet bactericidal air recirculator for livestock buildings.\u0000Methods. Methods of analysis, mathematical modeling and engineering methods for calculating irradiation installations are used.\u0000Results. The methods of application of ultraviolet bactericidal (UVB) plants for purification and disinfection of the air environment in agricultural premises are analyzed. Impact mechanism established of UVB radiation and ozone for pathogenic microflora and harmful impurities in the air of livestock premises is substantiated. The grounded design, the method of engineering calculation and the technical parameters of the UVB air recirculator are determined. Experimental samples of UVB recirculators of air in livestock buildings were made and the results of their production tests are presented.\u0000Conclusions. UVB recycle converter with application of luminescent UVB lamps with installed capacity = 180 W and air capacity \u0000 = 1800 m3/h provides bactericidal efficiency = 75%, and with \u0000 = 1000 m3/h – bactericidal efficiency = 90%.\u0000Keywords: recirculator, ultraviolet, bactericidal, ozone, air purification, disinfection, microclimate of livestock buildings.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121435335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2021-13-23
M. Maliarchuk, A. Maliarchuk, D. Kotelnikov
Annotation Purpose. Reduce energy costs for agricultural production and preservation of soil fertility under irrigation in southern Ukraine. Methods. Modern scientific and production recommendations were used to increase fertility and calculate the energy efficiency of cultivation technology. Results. By analyzing the results of scientific and production activities in the areas of increasing soil fertility, practical recommendations for the optimal system of basic tillage and crop rotation fertilization systems are identified. Conclusions. Research carried out during 2016–2019 established that the use of different depth system of basic tillage on the basis of chisel loosening forms the maximum productivity of crop rotation, which in turn forms the highest energy coefficient. Keywords: energy efficiency, tillage, crop rotation, stocking density, plant nutrition system.
{"title":"Energy efficiency of minimized and zero tillage in irrigated conditions of southern Ukraine","authors":"M. Maliarchuk, A. Maliarchuk, D. Kotelnikov","doi":"10.37204/0131-2189-2021-13-23","DOIUrl":"https://doi.org/10.37204/0131-2189-2021-13-23","url":null,"abstract":"Annotation\u0000Purpose. Reduce energy costs for agricultural production and preservation of soil fertility under irrigation in southern Ukraine.\u0000Methods. Modern scientific and production recommendations were used to increase fertility and calculate the energy efficiency of cultivation technology.\u0000Results. By analyzing the results of scientific and production activities in the areas of increasing soil fertility, practical recommendations for the optimal system of basic tillage and crop rotation fertilization systems are identified.\u0000Conclusions. Research carried out during 2016–2019 established that the use of different depth system of basic tillage on the basis of chisel loosening forms the maximum productivity of crop rotation, which in turn forms the highest energy coefficient.\u0000Keywords: energy efficiency, tillage, crop rotation, stocking density, plant nutrition system.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129052228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2021-13-12
B. Kotov, V. Hryshchenko, S. Hrushetskiy, A. V. Rud
Annotation Purpose. Determination of the efficiency of functioning of the centrifugal dust collector of exhaust ventilation air when supplied to the heat exchanger, and the parameters of the dedusting device. Methods. The specificity of the problem being solved determines the use of an analytical method for research, which allows us to consider the general scheme of the process flow, without specifying the dimensional characteristics. The research technique involves the compilation of differential equations of the motion of particles in a swirling air flow and determination of the trajectory of their movement. Results. The possibility and feasibility of using a direct-flow cyclone for dedusting ventilation emissions from an industrial premises before feeding to a heat recovery unit is considered. To assess the efficiency of dust cleaning, a mathematical description of the dynamics of motion of dust particles in a vortex flow of a direct-flow cyclone has been formulated. Analytical dependences are obtained, according to which the trajectories of motion of dust particles in projections onto the transverse and longitudinal planes of the cyclone body are calculated. The formulas obtained make it possible to determine the design and operating parameters of the dedusting device and to estimate the size of particles, the capture of which is provided by the proposed device. Conclusions 1. A rational layout diagram of a heat recovery system for ventilation air of industrial facilities has been determined, which in series connects a once-through cyclone with an impeller and a tube-plate heat exchanger. 2. A mathematical description of the dynamics of the motion of dust particles in a vortex flow has been formulated and investigated, and calculation formulas have been obtained for calculating the trajectories of motion of particles, which are used to determine the design and operating parameters of a direct-flow dust cleaner. Keywords: ventilation emissions, heat exchanger, dedusting of the air flow, direct-flow cyclone, particle trajectories.
{"title":"Justification of the layout and operating mode of a vortex-dedusting device as part of heat recovery units in agro-industrial facilities","authors":"B. Kotov, V. Hryshchenko, S. Hrushetskiy, A. V. Rud","doi":"10.37204/0131-2189-2021-13-12","DOIUrl":"https://doi.org/10.37204/0131-2189-2021-13-12","url":null,"abstract":"Annotation\u0000Purpose. Determination of the efficiency of functioning of the centrifugal dust collector of exhaust ventilation air when supplied to the heat exchanger, and the parameters of the dedusting device. \u0000Methods. The specificity of the problem being solved determines the use of an analytical method for research, which allows us to consider the general scheme of the process flow, without specifying the dimensional characteristics. The research technique involves the compilation of differential equations of the motion of particles in a swirling air flow and determination of the trajectory of their movement.\u0000Results. The possibility and feasibility of using a direct-flow cyclone for dedusting ventilation emissions from an industrial premises before feeding to a heat recovery unit is considered. To assess the efficiency of dust cleaning, a mathematical description of the dynamics of motion of dust particles in a vortex flow of a direct-flow cyclone has been formulated. Analytical dependences are obtained, according to which the trajectories of motion of dust particles in projections onto the transverse and longitudinal planes of the cyclone body are calculated. The formulas obtained make it possible to determine the design and operating parameters of the dedusting device and to estimate the size of particles, the capture of which is provided by the proposed device. \u0000Conclusions\u00001. A rational layout diagram of a heat recovery system for ventilation air of industrial facilities has been determined, which in series connects a once-through cyclone with an impeller and a tube-plate heat exchanger.\u00002. A mathematical description of the dynamics of the motion of dust particles in a vortex flow has been formulated and investigated, and calculation formulas have been obtained for calculating the trajectories of motion of particles, which are used to determine the design and operating parameters of a direct-flow dust cleaner.\u0000Keywords: ventilation emissions, heat exchanger, dedusting of the air flow, direct-flow cyclone, particle trajectories.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115955588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.37204/0131-2189-2021-14-15
V. S. Khmelovsky, S. E. Potapova
Annotation Purpose. Approbation of the method of determining the design parameters of the auger spiral of the feed preparation unit in the preparation of feed components for feeding, taking into account the interaction of elements: auger, knives, hopper walls. Methods. Theoretical determination of the regularities of reducing the radius of the auger, which is in the hopper of the feed preparation unit in the process of preparing the feed mixture, determines the analytical method of research based on compilation and analysis of equations in the interaction of elements: auger, knives, and hopper walls. Experimental researches are carried out with application of methods of the theory of probability, mathematical statistics, planning of full-factor experiment. The analysis of theoretical data and results of experimental researches is executed with application of applied computer programs and systems. Results. In the feed preparation unit the main working body is a vertical auger. In order to determine the optimal design parameters of the working body, expressions are given for the construction of the auger and the rational interaction of elements: auger, knives, and hopper walls. It is experimentally proved that depending on the design and technological parameters of the feed preparation unit there is an impact on the profitability of the livestock industry. In the process of studying the preparation of feed components for feeding, the influence of the screw speed and the number of knives on the specific energy consumption and quality indicators (grinding and mixing) of the feed mixture was considered. Conclusions 1. During the study of the process of preparation of feed mixture for feeding it was found that in the hopper of the feed preparation unit the lower part of the coil performs the function of collecting feed mixture and feeding it in the vertical direction for further mixing in the middle part of the auger through the unloading window of the hopper. The initial radius of the auger turn is equal to the radius of the hopper at the bottom, except for the technological gap. The upper coil with a knife mounted on it provides active destruction of rolls and packs. 2. With increasing speed of the auger n specific energy increases, and the greater the value of the speed, the more intense the impact on grinding and mixing has the number of knives on the auger, with a stepwise effect. It is experimentally proved that the rational values, of the specific energy, obtained by installing on the auger coil 8 knives and the rotor speed of 25 min-1, while the processing time of the feed components is 7 min. Keywords: auger, mixing, number of knives, lower turn, spiral pitch, efficiency.
{"title":"Substantiation of the parameters of the auger of the feed preparation unit and placement of knives on it","authors":"V. S. Khmelovsky, S. E. Potapova","doi":"10.37204/0131-2189-2021-14-15","DOIUrl":"https://doi.org/10.37204/0131-2189-2021-14-15","url":null,"abstract":"Annotation\u0000Purpose. Approbation of the method of determining the design parameters of the auger spiral of the feed preparation unit in the preparation of feed components for feeding, taking into account the interaction of elements: auger, knives, hopper walls.\u0000Methods. Theoretical determination of the regularities of reducing the radius of the auger, which is in the hopper of the feed preparation unit in the process of preparing the feed mixture, determines the analytical method of research based on compilation and analysis of equations in the interaction of elements: auger, knives, and hopper walls.\u0000Experimental researches are carried out with application of methods of the theory of probability, mathematical statistics, planning of full-factor experiment. The analysis of theoretical data and results of experimental researches is executed with application of applied computer programs and systems.\u0000Results. In the feed preparation unit the main working body is a vertical auger. In order to determine the optimal design parameters of the working body, expressions are given for the construction of the auger and the rational interaction of elements: auger, knives, and hopper walls. It is experimentally proved that depending on the design and technological parameters of the feed preparation unit there is an impact on the profitability of the livestock industry.\u0000In the process of studying the preparation of feed components for feeding, the influence of the screw speed and the number of knives on the specific energy consumption and quality indicators (grinding and mixing) of the feed mixture was considered.\u0000Conclusions\u00001. During the study of the process of preparation of feed mixture for feeding it was found that in the hopper of the feed preparation unit the lower part of the coil performs the function of collecting feed mixture and feeding it in the vertical direction for further mixing in the middle part of the auger through the unloading window of the hopper. The initial radius of the auger turn is equal to the radius of the hopper at the bottom, except for the technological gap. The upper coil with a knife mounted on it provides active destruction of rolls and packs.\u00002. With increasing speed of the auger n specific energy increases, and the greater the value of the speed, the more intense the impact on grinding and mixing has the number of knives on the auger, with a stepwise effect. It is experimentally proved that the rational values, of the specific energy, obtained by installing on the auger coil 8 knives and the rotor speed of 25 min-1, while the processing time of the feed components is 7 min.\u0000Keywords: auger, mixing, number of knives, lower turn, spiral pitch, efficiency.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117119712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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