Precedent support for decision-making in energy management

2020 ◽  
Vol 25 (2) ◽  
pp. 53-60
Author(s):  
Pleskach B.M. ◽  
Keyword(s):  
Energy Consumption ◽  
Technical Condition ◽  
Nonlinear Dependence ◽  
Energy Losses ◽  
Technological Systems ◽  
Technological Parameters ◽  
Software Modules ◽  
Restoration Work ◽  
Selection Of

The article presents an approach to the formation of a decision support system in the management of energy consumption of production technological systems. Such systems allow the company to detect and respond in a timely manner to the appearance of hidden energy losses, to carry out organizational measures aimed at energy saving and to optimize the timing and scope of repair and restoration work. The approach is based on the modeling of stationary sections of energy consumption, presented in the form of precedents, their accumulation and subsequent analysis in the space of influential technological parameters. In addition to the base of precedents, the system includes software modules for assessment and formation of the profile of hidden energy losses, modules of technical condition, forecast and formation of precedents. The analysis of precedents consists in the selection of similar cases of energy consumption, the formation of efficient energy consumption functions and the calculation of energy losses with its help. Hidden energy losses can be calculated in real time for all technological systems of the enterprise. This allows you to build a profile of energy losses of the enterprise. The advantage of this approach in comparison with the known ones is that it allows to adapt to technological systems with different energy sources. The article emphasizes that the method can work with the energy manager with both linear and nonlinear dependence of energy consumption on process parameters. However, the limitations of this approach are noted. Thus, the determination of latent energy losses and technical condition of the equipment requires the participation of qualified specialists of the enterprise, who must be able to analyze the results and propose measures to eliminate energy losses.

The system of components dosing in compound feed

2021 ◽  
pp. 62-70
Author(s):  
S. Yu. Bulatov ◽  
V. N. Nechaev ◽  
A. G. Sergeev
Keyword(s):  
Animal Husbandry ◽  
Technological Parameters ◽  
Optimal Diet ◽  
Limit Values ◽  
Feed Production ◽  
Predominant Type ◽  
Dosing Accuracy ◽  
Selection Of ◽  
Poultry Farming

Feed production, feeding of animals and poultry is an integral part of animal husbandry and poultry farming. Proper feeding of animals and poultry, which implies the making of an optimal diet with the input of useful premixes and vitamins, can increase their productivity. In Russia the predominant type of feeding is complete feed, which includes compound feed. Regardless of the type of feed in the process of its production, it is necessary to observe the proportions of its components. Dispensers are used for dosing, which depending on the purpose, are divided into mass and volume. We have made an attempt to generalize, systematize and implement the accumulated experience in the form of a scheme that allows us to understand the principle of operation of modern systems for dosing feed components, in which augers are used as feeding mechanisms. The purpose of the research was to build a scheme for selecting parameters and develop a methodology for studying the dosage system of feed components based on it. The results of the analysis of intellectual property protection documents and scientifi c works in the fi eld of dosing have been used to make a scheme for selecting parameters of the feed components dosing system. The results of observations on the operation of the developed system under production conditions and design features have been also taken into account. As a result of the research developed the scheme of selection of the operating parameters of the dosing system, revealed its shortcomings in the form of lower dosing accuracy with the decrease in the mass of the weighed components and the long search settings when composing the new diet. The methods have been developed to address the identifi ed defi ciencies in the determination of limit values of technological parameters.

scholarly journals Research on the relative productivity of a drum mill type SAG 8.5×5.3

2020 ◽  
Vol 168 ◽  
pp. 00012
Author(s):  
Ivan Minin
Keyword(s):  
Energy Consumption ◽  
Control Parameters ◽  
Operational Mode ◽  
Operational Parameters ◽  
Technological Parameters ◽  
Expected Performance ◽  
Relative Productivity ◽  
Required Quality

The determination of the optimal operational mode of drum mills can be assessed by different criteria. The most important of them can be formulated as follows: “To be specified and established the values of the mill operational parameters regarding to which it is possible to be provided the user’s expected performance at the required quality of the final product and the same to be achieved at minimal energy consumption”. For the fulfillment of this condition, there has to be determined the laws of productivity variation, the final product quality and the energy consumption in function of the adequately chosen representative control parameters of the mill. There are obtained mathematical models, describing the most important technological parameters of the machine and are made conclusions about the factors influencing on them.

scholarly journals Selection of Method of Chemical Analysis in Measuring the Salinity of Mineral Materials

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 559
Author(s):  
Teresa Stryszewska ◽  
Marta Dudek
Keyword(s):  
High Performance ◽  
Salt Content ◽  
Technical Condition ◽  
Water Soluble ◽  
Aqueous Extracts ◽  
X Ray ◽  
Chloride Salts ◽  
Sulphate Salts ◽  
Selection Of

The article deals with the issue of salt content in brick buildings, which plays an important role in the assessment of the technical condition, in particular of historic buildings. A question has been asked about the selection of the best research method to determine the salinity of mineral materials. To obtain the answer, the authors conducted some tests on ceramic bricks salted with seven types of salt solutions. Research methods such as: spectrophotometry (UV), ion chromatography (High Performance Liquid Chromatography (HPLC)), X-Ray Fluorescence Spectrometry (XRF) and Energy-Dispersive X-Ray Spectroscopy (EDS) were compared. The above methods belong to two groups: the first is based on aqueous extracts and allows the determination of water-soluble salts, and the second concerns testing directly on the sample so that insoluble salts can also be determined. The results tests indicate that the methods based on solid phases (XRF and EDS) give higher salinity values than those based on aqueous extracts (HPLC and UV). The results were also analysed with regard to the type of salt. Larger differences are observed for sulphate salts while chloride salts are characterised by smaller differences. On this basis, it is concluded that the salt content of the material is best assessed using tests that make it possible to recognise the salt in question and its quantity.

scholarly journals PLANNING OF EXPERIMENTAL RESEARCHES ON DETERMINATION OF PROTECTIVE SCREEN CHARACTERISTICS

2019 ◽  
pp. 4-9
Author(s):  
A. BORISOV ◽  
I. BABIJ ◽  
S. KYRYLIUK ◽  
L. LUKASHENKO
Keyword(s):  
Research Method ◽  
Statistical Regression ◽  
Technological Parameters ◽  
Physicomechanical Characteristics ◽  
Experimental Findings ◽  
Experimental Researches ◽  
Protective Screen ◽  
Relevant Factors ◽  
Selection Of

Purpose. The purpose of this work is to develop a research methodology, on the basis of which it is possible to perform the selection of the composition of the solution with the determination of the physicomechanical characteristics of both the thixotropic and hardened solution, as well as to determine the effect of the number of individual components on the properties of the mortar mixture and the protective screen based on it. Methodology. The research method is to use an adapted plan of experimental-statistical modeling to solve specific problems, namely when creating a reliable, inclined filtering screen inside the sand massif under conditions when technological parameters change. Technological research method: analytical and experimental. Findings. To solve the problems of analysis and optimization of the factor systems under study, the theory of mathematical modeling was used in the work. At the same time, experimental-statistical regression models are considered, which show how the indicator under study (y) changes as the relevant factors change. Originality. According to the results of the work, a technique has been obtained that allows, with a minimum amount of materials and experiments, to obtain the physicomechanical indicators of solutions and a protective soil-concrete screen based on them.

scholarly journals Estimation of Hidden Energy Losses

2021 ◽  
Author(s):  
Borys Pleskach
Keyword(s):  
Energy Consumption ◽  
Energy Losses ◽  
Water Supply Systems ◽  
Technological Parameters ◽  
Heating Systems ◽  
Efficient Energy ◽  
Statistical Estimates ◽  
External Conditions ◽  
Lighting Systems ◽  
Supply Systems

Most industrial or municipal energy consumers involve the conversion of electricity, either into useful products or into other types of energy. For example, lighting systems, heating systems, air or water supply systems. And in all such systems there are energy losses, which can be divided into open, or technological and hidden, or abnormal. Open losses are inherent in the technological process itself and depend on the principle of energy conversion, flow conditions, the type of equipment received, and so on. Hidden losses in the technological system occur accidentally due to the appearance of defects in the equipment, erroneous actions of personnel, changes in uncontrolled external conditions. The paper considers a method of detecting and estimating hidden energy losses, based on the analysis of energy consumption precedents and building a decision support system aimed at eliminating such energy losses. Models of energy consumption precedents are formed on the basis of controlled technological parameters and their statistical estimates. In the future, local standards of efficient energy consumption are formed from individual precedents. The advantage of this method of estimating latent energy losses is the adaptation of standards of efficient energy consumption to the conditions of the consumer.

scholarly journals MONITORING ENERGY SAVING PROCESSES IN PRODUCTION SYSTEMS BASED ON MATHEMATICAL STATISTICS

2021 ◽  
Vol 23 (4) ◽  
pp. 57-64
Author(s):  
A.I. Shinkevich ◽  
◽  
T.V. Malysheva ◽  
L.N. Ivanova ◽  
◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Average Rate ◽  
Electrical Energy ◽  
Energy Resources ◽  
Mathematical Statistics ◽  
Energy Losses ◽  
Technological Systems ◽  
Limit Values ◽  
The Cost

The article is devoted to the urgent problem of organizing and managing resource-saving industrial chemical-technological systems and increasing the competitiveness of products. To increase the efficiency of the implementation of energy-saving technologies, it is necessary to conduct continuous energy monitoring and control, which is currently difficult due to the imperfection of the mechanism for the practical implementation of energy management systems. The purpose of the article is to study the trends in the dynamics of the energy component of the cost of production and the transformation of the structure of energy resources, to assess the maximum rate of electricity losses in chemical-technological systems on the basis of mathematical statistics. To achieve this goal, the article uses scientific and organizational approaches to the study of the energy efficiency of chemical technological systems, among the methods of mathematical modeling, methods of descriptive statistics have been effectively applied, and a method is proposed for assessing energy losses based on the dependence of the range of limit values of energy consumption on the average rate according to the best available technologies. Positive trends in the change in the energy consumption of products of chemical-technological systems in general for all resources have been determined against the background of an increase in electrical energy consumption and a decrease in heat consumption. A fairly significant movement of the structure of fuel and energy resources for certain items was revealed, which is associated with a change in the cost of fuel and electricity, the introduction of new technologies into production, as well as a certain effect from the implementation of energy conservation programs. A positive trend has been established to reduce the amount of energy losses at Russian industrial enterprises while maintaining a relatively high level of technological losses in absolute terms. The necessity of taking into account the absolute value of the energy consumption of products when determining the rate of loss of energy resources at the stage of design or modernization of chemical production is substantiated on the basis of the revealed correlation dependences of the range of limit values of electricity consumption from the average rate of energy consumption. The limiting limits of the norms for the loss of electrical energy are estimated on the example of solution polymerization rubbers with different levels of electrical energy capacity during production. The results of the study are theoretically and practically significant for the development of models and algorithms for intelligent energy systems intended for monitoring the level of consumption and losses of energy resources in chemical-technological systems with subsequent diagnostics of deviations in resource consumption from the specified values.

Information technology for monitoring of efficiency of energy consumption in technological systems

2019 ◽  
Vol 24 (1-2) ◽  
pp. 60-68
Author(s):  
Bohdanov O.V. ◽  
◽  
Pleskach B.M. ◽  
Keyword(s):  
Energy Consumption ◽  
Energy Resources ◽  
Energy Losses ◽  
Technological Systems ◽  
Timely Manner ◽  
Energy Monitoring ◽  
Local Conditions ◽  
Stationary Energy ◽  
Stationary Conditions ◽  
Factors Of Influence

The article proposes an approach to monitoring the efficiency of consumption of energy resources in technological systems, which is based on observing the precedents of stationary energy consumption. This approach allows us to adapt to the local conditions of the technological system and to detect in a timely manner any disturbances of the technological process that lead to unexpected energy losses. The peculiarity of energy monitoring based on observing and fixing the precedents of stationary conditions of energy consumption consists of the formation of precedent images in the form of stochastic estimates of factors of influence on energy consumption and subsequent processing by methods of artificial intelligence.

DETERMINING THE DESALINATION UNIT COMPOSITION FOR COSTAL AREAS AND SMALL ISLANDS USE ANALYTIC HIERARCHY PROCESS

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Imam Setiadi ◽  
Dinda Rita K. Hartaja
Keyword(s):  
Analytic Hierarchy Process ◽  
Energy Demand ◽  
Pairwise Comparison ◽  
Small Islands ◽  
Ahp Method ◽  
Analytic Hierarchy ◽  
Comparison Research ◽  
Hierarchy Process ◽  
Selection Of

Selection of the appropriate composition desalination units can be done with a variety of method approaches, one of the method is the Analytic Hierarchy Process. In determining the desalination unit with AHP method to consider is setting a goal, an alternative criteria and pairwise comparison. Research for the determination of the exact composition of the desalination unit in order to achieve sustainable drinking water suppy in coastal areas and small islands has been conducted. The results of the study are as follows, the energy demand of 50.83%, operator costs of 26.64%, maintenance costs of 14.13% and chemical requirement 8.4%. For an alternative composition desalination unit of RO 10 m3 / day is the best alternative composition with value of 59.61%, the composition of the next alternative is RO 20 m3/ day of 30.40% and the last alternative of the desalination unit composition is RO 120 m3/ day of 09.99%.Key words : Desalination, Mukti Stage Flash Composition, AHP

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