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: 10.37204/0131-2189-2019-10-4
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: 10.37204/0131-2189-2019-9-1
A. V., K. V., Kuzmych, A., M. V.
Purpose. Identification of promising technologies for harvesting the non-cereal part of the corn and sunflower crops, which provide for the controlled collection of quality products in accordance with the needs. Methods. Analysis of common technological processes of harvesting straw and stem feed, the non-grain part of the corn and sunflower harvest, the synthesis of options for harvesting individual parts of the non-grain part of the corn and sunflower crop and evaluating them by the possible harvest, experimental determination of the full harvest for a particular process. Results. Synthesized and analyzed options for harvesting the non-cereal part of the corn and sunflower crops, which can be used in modern agricultural production. The analysis of the non-cereal part of the corn and sunflower harvest was carried out. The proportion of the non-cereal part of the corn and sunflower crops, which can be collected with various harvesting options, has been established. Experimental studies have been carried out of individual operations of collecting the non-grain part of the corn and sunflower crops. Conclusions. Harvesting the stem mass in a compacted form (rolls, bales) for energy needs is more appropriate than in loose form. Farms that grow corn and sunflower choose the technology of harvesting the non-cereal part of the crop, depending on the area of sowing of crops and needs in the stem mass. The investigated options for harvesting the non-cereal part of the crop provide a complete collection of the stem mass from 3.5 to 85.4%. The final choice of the option of harvesting raw materials is determined not only by the completeness of the collection of raw materials, but also by its technical and economic indicators. Keywords: non-cereal part of corn and sunflower harvest, technology of harvesting non-cereal part, solid biofuel.
{"title":"Aspects of non-grain part harvesting for corn and sunflower as solid biofuels","authors":"A. V., K. V., Kuzmych, A., M. V.","doi":"10.37204/0131-2189-2019-9-1","DOIUrl":"https://doi.org/10.37204/0131-2189-2019-9-1","url":null,"abstract":"Purpose. Identification of promising technologies for harvesting the non-cereal part of the corn and sunflower crops, which provide for the controlled collection of quality products in accordance with the needs.\u0000Methods. Analysis of common technological processes of harvesting straw and stem feed, the non-grain part of the corn and sunflower harvest, the synthesis of options for harvesting individual parts of the non-grain part of the corn and sunflower crop and evaluating them by the possible harvest, experimental determination of the full harvest for a particular process.\u0000Results. Synthesized and analyzed options for harvesting the non-cereal part of the corn and sunflower crops, which can be used in modern agricultural production. The analysis of the non-cereal part of the corn and sunflower harvest was carried out. The proportion of the non-cereal part of the corn and sunflower crops, which can be collected with various harvesting options, has been established. Experimental studies have been carried out of individual operations of collecting the non-grain part of the corn and sunflower crops.\u0000Conclusions. Harvesting the stem mass in a compacted form (rolls, bales) for energy needs is more appropriate than in loose form. Farms that grow corn and sunflower choose the technology of harvesting the non-cereal part of the crop, depending on the area of sowing of crops and needs in the stem mass. The investigated options for harvesting the non-cereal part of the crop provide a complete collection of the stem mass from 3.5 to 85.4%. The final choice of the option of harvesting raw materials is determined not only by the completeness of the collection of raw materials, but also by its technical and economic indicators.\u0000Keywords: non-cereal part of corn and sunflower harvest, technology of harvesting non-cereal part, solid biofuel.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"14 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":"124908574","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: 10.37204/0131-2189-2022-15-11
Shvidia V. О.
Purpose. To analyze the effect of vacuum on the process of drying seeds of agricultural crops using mathematical modeling. Methods. Methods of differential calculus were used, in particular first-order differential equations, as well as differential geometry. The analysis of the mathematical model was carried out using graphs that were built by computer programs for solving differential equations. Results. On the basis of balance equations of heat and humidity flows of the seed drying process in the drying chamber, a system of differential equations was compiled and solved. Analytical dependencies describing the kinetics of drying and heating crop seeds when using vacuum in the drying chamber are obtained. On the example of soybean seeds, graphic dependencies of the kinetics of drying and heating at different pressures and the initial absolute humidity of the air in the drying chamber are constructed. These graphic dependences show that an increase in the vacuum in the drying chamber leads to an increase in the rate of seed drying, and a decrease in the initial absolute air humidity also increases the drying rate and decreases the equilibrium humidity. Analysis of the graphical dependencies of seed heating kinetics shows that drying in a vacuum reduces some of the thermal energy used directly to heat the seeds and reduces their heating temperature. Conclusions. To describe the process of heat and mass transfer in the process of drying seeds of agricultural crops under vacuum conditions, a mathematical model has been developed using a system of differential equations. The solution of which, on the example of soybean seeds, shows that when using a vacuum in the process of drying seeds, the exposure time and the proportion of thermal energy used directly to heat the seeds are reduced. Reducing the initial absolute humidity of the air inside the drying chamber also reduces the exposure time and equilibrium humidity. Therefore, drying in a vacuum reduces the negative impact of the heater on the seeds. Keywords: seeds, seed moisture, seed temperature, vacuum, absolute humidity, drying kinetics, drying chamber, equilibrium humidity.
{"title":"Mathematical modeling of heat and mass transfer in the process of drying seeds of agricultural crops in vacuum conditions","authors":"Shvidia V. О.","doi":"10.37204/0131-2189-2022-15-11","DOIUrl":"https://doi.org/10.37204/0131-2189-2022-15-11","url":null,"abstract":"Purpose. To analyze the effect of vacuum on the process of drying seeds of agricultural crops using mathematical modeling.\u0000Methods. Methods of differential calculus were used, in particular first-order differential equations, as well as differential geometry. The analysis of the mathematical model was carried out using graphs that were built by computer programs for solving differential equations.\u0000Results. On the basis of balance equations of heat and humidity flows of the seed drying process in the drying chamber, a system of differential equations was compiled and solved. Analytical dependencies describing the kinetics of drying and heating crop seeds when using vacuum in the drying chamber are obtained. On the example of soybean seeds, graphic dependencies of the kinetics of drying and heating at different pressures and the initial absolute humidity of the air in the drying chamber are constructed. These graphic dependences show that an increase in the vacuum in the drying chamber leads to an increase in the rate of seed drying, and a decrease in the initial absolute air humidity also increases the drying rate and decreases the equilibrium humidity. Analysis of the graphical dependencies of seed heating kinetics shows that drying in a vacuum reduces some of the thermal energy used directly to heat the seeds and reduces their heating temperature.\u0000Conclusions. To describe the process of heat and mass transfer in the process of drying seeds of agricultural crops under vacuum conditions, a mathematical model has been developed using a system of differential equations. The solution of which, on the example of soybean seeds, shows that when using a vacuum in the process of drying seeds, the exposure time and the proportion of thermal energy used directly to heat the seeds are reduced. Reducing the initial absolute humidity of the air inside the drying chamber also reduces the exposure time and equilibrium humidity. Therefore, drying in a vacuum reduces the negative impact of the heater on the seeds.\u0000Keywords: seeds, seed moisture, seed temperature, vacuum, absolute humidity, drying kinetics, drying chamber, equilibrium humidity.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"92 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":"125533609","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: 10.37204/0131-2189-2022-15-16
Adamchuk V. V., Boris A. M., Savchenko I. F., Rykhlivskyi P. A., Kasprovich I. K., Kalinichenko А. P.
Purpose. Improvement of the quality of work and labor productivity thanks to the automation of driving the MTU as a result of the development of a universal control system for agricultural units. Methods. The structural-analytical method is applied. Results. An analysis of technological solutions from specialized technical means for automated control of MTU was carried out. A technical and economic analysis of technical means for automated control of MTU was carried out. The structural and functional scheme of the autopilot control system in aggregation with agricultural machinery is substantiated. Conclusions. As a result of the research, it was established that the developed automatic driving system ensured an increase in the row spacing of the vegetable planter and accurate driving and coordination of the width of the inter-row spacing with technical means for spraying and harvesting vegetable crops. Keywords: precision driving system, navigation, automatics, table carrots, ridge former, seeding device.
{"title":"The experience of using a system of precise driving of aggregates in the cultivation of table roots","authors":"Adamchuk V. V., Boris A. M., Savchenko I. F., Rykhlivskyi P. A., Kasprovich I. K., Kalinichenko А. P.","doi":"10.37204/0131-2189-2022-15-16","DOIUrl":"https://doi.org/10.37204/0131-2189-2022-15-16","url":null,"abstract":"Purpose. Improvement of the quality of work and labor productivity thanks to the automation of driving the MTU as a result of the development of a universal control system for agricultural units.\u0000Methods. The structural-analytical method is applied.\u0000Results. An analysis of technological solutions from specialized technical means for automated control of MTU was carried out. A technical and economic analysis of technical means for automated control of MTU was carried out. The structural and functional scheme of the autopilot control system in aggregation with agricultural machinery is substantiated.\u0000Conclusions. As a result of the research, it was established that the developed automatic driving system ensured an increase in the row spacing of the vegetable planter and accurate driving and coordination of the width of the inter-row spacing with technical means for spraying and harvesting vegetable crops.\u0000Keywords: precision driving system, navigation, automatics, table carrots, ridge former, seeding device.","PeriodicalId":253322,"journal":{"name":"Mehanization and electrification of agricultural","volume":"55 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":"130147371","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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