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Search results for energy efficiency :
The paper proposes a method of tracking the livestock farm load schedule based on the determination of the required generation capacity depending on the actual load schedule. The use of this method allows the management of biogas power plants based on internal combustion engines, depending on changes in the load without power reserve for the tim...
For today the question of non-volatility, energy efficiency, ensuring production and the population with energy carr...
Energy efficiency of the drying process today is the main parameter that affects the choice of drying mode. Seed requires more careful selection of technology and equipment, which is associated with quality characteristics. Seed material to maintain high germination is dried at low temperatures, the operation of the grain dryer at high temperatu...
Many researchers at different times have been engaged in drying cereals to preserve their nutritional properties, which is associated with the biochemical properties of materials. The technologies for drying grain crops have been developed and improved with the given recommendations aimed at carrying out the drying process at high temperatures (...
Energy resources are of great importance for human life. Today, the intensive spread of renewable energy sources (RES) in the world is the result of complex political, social, economic and natural resources that have been developing over the past 40-50 years. These processes are associated with different levels and dynamics of economic developme...
The paper considers the problem of reducing the drive power of the mechanism for separating stalk feed from trench storages by the batch method by developing and substantiating the parameters and operating modes of the hydraulic drive system. The structure and principle of construction of a system of hydraulic drives of the mechanism for separat...
Shortage of quality feed significantly slows down the production of livestock products in Ukraine. One of the ways to overcome the crisis in the production of feed is the use of new high-energy feed, including the products of fractional processing of alfalfa.
For the successful implementation of the skin type of feed, including the products...
Taking into consideration current realities and various factors, which create difficulties for the effective functioning of Ukraine’s national economic system, the Agro-Industrial Complex of Ukraine acts as the most stable part of it, that is characterized by conservatism and is one of the main and stable cross-sectoral formations due to r...
A task of introduction of separation processes of damp dispersive materials are very actual for food and processing industry of Ukraine and other countries, because its solution will allow to resolve by most effective way a problem of utilization of such waste as alcoholic bard, beer pellets, beet press, coffee and barley slime. In most cases th...
During the reconstruction of existing and construction of new energy facilities, mostly modern imported equipment is used, which is not certified in Ukraine due to inconsistencies in domestic standards. This creates difficulties in coordinating projects with government agencies regarding building codes and regulations, energy efficiency requirem...
Vibro-pressing equipment its one from most effective kinds of machines for dehydration of damp dispersive wastes of food industry (alcoholic bard, beer pellets, beet press, coffee and barley slime) for their further using as valuable additives to agricultural fodders or as fuel. In comparison with other equipment for mechanical dehydration (hydr...
In the feed industry raw material, grinding is an integral part of the production cycle. However, this process is characterized by significant energy consumption – from 3 to 100 kW * hour per ton of finished goods, and only a part of it is directly spent on grinding. Therefore, this scientific research is aimed at minimizing the consumptio...
Reactive power compensation is one of the components of improving the efficiency of electrical networks, the theoretical foundations of which were developed at the beginning of the last century by Frieze and Budenau. However, the development of effective control algorithms for reactive power compensation devices continues today. It is conducted...
Study of starting modes of asynchronous electric motors. The growth of their demand in industry and everyday life requires an increase in the intensity of use of new systems of the industry existing in the agricultural sector.
Currently, there is an aspiration to make the technological process the most automated, as well as to create the mo...
The situation that has developed on the market of oil products in the conditions of the war with the invaders has led to a shortage of liquid fuels and a constant increase in the price, in particular of diesel fuel, prompting the producers of agricultural products to think about switching to alternative types of fuel. Research related to the pro...
The separation of wet dispersed materials is becoming an urgent task for the industry of Ukraine and other countries, especially in the food and processing industries. Solving this task can effectively solve the problem of efficient management of wastes such as alcohol grounds, beer grounds, beet pulp, coffee and barley sludge. After separation...
The article presents materials for the analysis of energy efficiency of foreign and domestic agricultural production and summarizes the factors affecting the reduction of their energy efficiency. The results of the analysis of energy resource consumption in the field of dairy farming and materials on the results of the application of energ...
Large energy costs for the process of drying grain crops associated with the increase in the price of energy carriers pose the task of reducing the energy component to the developers. The presented article focuses on the development of measures to reduce energy costs for the grain drying process using heat pumps.
The considered advantages...
In modern crop production, energy-saving technologies play a key role, being one of the most promising directions. This requires the introduction of new-generation agricultural machines that guarantee high-quality operations, in particular, the sowing of small-seeded crops. New constructions of agricultural machinery are developed with an emphas...
The article is dedicated to optimizing the digital current control loop of a thyristor converter-driven electric drive, essential for ensuring stable, precise, and reliable operation of electric drives in automated and industrial systems. The primary goal of this research is to develop and enhance the digital current regulator (DCR), which enabl...
Modern technologies in agriculture are actively aimed at increasing the efficiency of processing garden plantings, which provides optimal conditions for the growth and development of plants. One of the key operations in tree care is regular pruning of branches, which helps to rejuvenate the garden and increase productivity. However, traditional...
Today, in conditions of given the high demands for reliability and uninterrupted operation of equipment, electric machines are used in important and even critical technological processes, where their failure can lead to serious consequences, including production downtime, material losses, or even safety hazards. Diagnostic systems enable the tim...
Energy-saving technologies in shaping the lighting environment of residential neighborhoods are a priority area in the formation of measures and specialized subprograms for energy saving and increasing energy efficiency for the housing stock of the city of Vinnytsia.
Modernization of municipal lighting systems includes a set of measures and...
The article presents the results of numerical modeling of thermal processes in vertical ground heat exchangers of concentric and U-shaped types aimed at improving the energy efficiency of microclimate control systems in agro-industrial facilities. Analytical studies of pneumatic losses demonstrated that their magnitude is nearly identical for bo...
The article presents the results of comprehensive studies of the physical and mechanical characteristics of walnuts, which form the basis for constructing a mathematical model of the drying process in convective-vibration installations. The relevance of the work is justified by the need to increase energy efficiency and ensure high product quali...
The study addresses the pressing issue of improving the efficiency of post-harvest processing of castor (Ricinus communis), particularly the cleaning of its seeds. Castor is a valuable industrial crop, the seeds of which contain up to 50% oil that is widely used across various industries. Despite the growing demand for castor oil, the wide...
In modern livestock production, the efficiency of farming largely depends on the quality of total mixed rations (TMR). Vertical TMR mixers occupy a leading position among technical equipment for this process, as they are capable of simultaneously working with coarse, succulent, and concentrated feeds. Nevertheless, their operation still exhibits...
The article is devoted to investigating the influence of the structural parameters of an indirect evaporative heat exchanger on the efficiency of air cooling in microclimate control systems for livestock buildings. The relevance of the study is driven by increasing thermal loads during the summer period, higher requirements for maintaining comfo...
The article examines the role of the feed-mixing process within the technological chain of feed preparation and its significance in ensuring the stable quality of feed mixtures and improving the energy efficiency of agricultural machinery. The purpose of the study is to provide a systematic generalization of the factors, methods, and criteria fo...
The article considers modern technologies and innovative approaches to the introduction of cargo bikes - trucks into the system of collection and transportation of solid household waste in urban and suburban conditions. Growing environmental challenges, the need to reduce greenhouse gas emissions and restricting the use of traditional vehicles i...
The article presents the results of a comprehensive study on the implementation of digital twins in control systems for energy facilities using modern hardware and software complexes. Special attention is devoted to analyzing various approaches to building integrated models that combine real physical processes with their virtual analogs in a uni...
The results of studies of the effect of preliminary extrusion preparation of castor seeds on the parameters of the pressing process and the quality of the obtained oil are presented. Based on the analysis of thermophysical processes, a five-zone model of extruder temperature regimes is proposed, taking into account heat exchange, mass exchange a...
Today, about 3.5–4.0 million m³ of woody biomass is used for energy purposes, such as heating individual residential buildings and social facilities in rural areas with fuelwood, heat generation based on wood waste for technological processes and space heating at wood-processing enterprises, production of thermal and electrical energy...
The article examines the application of mechatronic principles using scraper conveyors as an example, which are among the key mechanisms for transporting bulk materials in the agro-industrial sector and industry. The authors propose the structure of a scraper conveyor as a mechatronic module that integrates mechanical, electromechanical and elec...
The article provides a theoretical substantiation of the aerodynamic characteristics of an indirect evaporative air heat exchanger operating according to the Maisotsenko thermodynamic cycle (M-cycle) and intended for microclimate control systems in livestock buildings. The study is motivated by increasing summer thermal loads, the limited perfor...
The improvement of technical equipment for harvesting root and tuber crops remains a key task in modern agricultural engineering. This is driven by the need to intensify production, increase energy efficiency, and reduce mechanical damage to the harvested crop. A decisive role in this process belongs to the rotary working element, which directly...
The article presents a detailed step-by-step analytical method for the hydraulic calculation of systems with sequential water withdrawal from a main pipeline through a network of lateral branches. Particular attention is given to the important problem of non-uniform pressure and flow rate distribution among consumers, which arises due to the gra...
The paper examines modern approaches to the development, research, and implementation of mechatronic systems for adaptive control of technological processes in the agro-industrial complex. Particular attention is paid to the integration of electrical, information, sensor, and control subsystems into a unified intelligent structure capable of sel...
