scholarly journals ESTIMATION INTRODUCTION OF THE DISCRETE HEATING SYSTEM OF THE SETTLEMENT USING THE EXPRESS-METHOD «3Е»

2019 ◽  
Vol 41 (1) ◽  
pp. 43-52
Author(s):  
V.G. Demchenko ◽  
A.S. Trubachev ◽  
S.S. Hron
Keyword(s):  
Decision Making ◽  
Heat Supply ◽  
New Technologies ◽  
Heating System ◽  
Heat Energy ◽  
Point Of View ◽  
Optimal Decision ◽  
Triangular Diagram ◽  
Modern Approach ◽  
Economic Point

The energy system of Ukraine, as well as the world power industry now in a phase of change related to the deterioration of the environment, a large number of new technologies and a change in global geopolitics. Thus, there is a need for quick decision-making when introducing new products, technologies and methods. The article proposes a modern approach to solving key strategic issues at the enterprise. A comparative analysis of existing classical methods of making management decisions is made and a number of advantages of the author's method are revealed. In this article, with the help of the proposed method, the feasibility of introducing a discrete heating system in the village is determined. In order to achieve this goal, the structure of the heat sources used in the settlement is determined, an analysis of the users of heating and comparison of the prices for heat energy is obtained using natural gas, pellets and a discrete heating system. The next step is to compare all sources of heat energy by the three main weighting criteria that most accurately reflect their quality. The preliminary expression of each criterion in a numerical dimensionless expression allows us to obtain a decision to make an optimal decision by graph-analytical method. This allows us to determine the main factors influencing the object of research and the decision making decision to three equally weighted coefficients: energy, ecology, economics. The obtained indicators are the faces of a triangular diagram, which forms the general plane within which all investigated objects or processes are located. The next step is to determine the field of satisfactory results, which has a flexible system of construction, which accurately shows the limits, taking into account the conditions of a specific task and goals. The triangular diagram has a visually accessible structure, so it is easy to understand to untrained people. As can be seen from the rating, the use of mobile heat supply with mobile battery is the most advantageous. Sources of heat supply on wood used as fuel, the most attractive from an economic point of view, however, lose to other sources of heat from the ecological and energy point of view.

scholarly journals Analysis of procedures for heating, ventilation and air conditioning for transfer to low-temperature heat supply

2019 ◽  
pp. 8-8
Author(s):  
Stanislav Chicherin
Keyword(s):  
Water Supply ◽  
Heat Supply ◽  
Heating System ◽  
Heat Energy ◽  
Hot Water ◽  
Heat Consumption ◽  
High Quality ◽  
Hot Water Supply ◽  
Supply Systems ◽  
Selection Of

Introduction. Renovation of housing stock supposes construction of new buildings, where the main utilities consuming heat energy will be heating and hot water supply (HWS) systems. Under such conditions the task of heat consumption reduction by transfer to low-temperature and use of the associated procedures is relevant. Materials and Methods. Research was performed on the basis of residential and administration buildings designed within the whole Russia, the facilities were selected based on the year of putting into operation and their purpose. The source of data concerning buildings became documents included into the scope of the design and detailed documentation: plans, drawings and explanatory notes. As meeting the demands of hot water supply makes the main contribution to daily nonuniformities of heat energy consumption, the attention was paid to equipment of hot water supply systems. For calculations, the commercial product of Microsoft Office Excel 2010 was used. Results. During selection of roof boiler house as a source of heat supply increase in consumption of equivalent fuel in relation to the variant of connection to heat power plant operating on solid fuel by 187,314 tons of fuel oil equivalent is possible. General refusal from power-and-heat generation complicates operation of large district heat supply systems. The design parameters of coolant in building heating system differ from project to project: from 95/70 °С, used everywhere till the beginning of the XXI century, up to 90/65 °С corresponding to existing practice of designing or 80/60 °С as at the facility in Sevastopol. Reduction of design temperatures by 5 % is insufficient to decrease general heat consumption of the building. Reduction of heat consumption is explained by selection of advanced materials for pipeline heat insulation. Use of automation diagrams for heat points on the basis of regulator ECL Comfort 310 contributes to improvement of hydraulic control for heating systems, however, concealed automation results in violation of high-quality mode for heat network control and decrease of coolant parameters on adjacent (often non-automated) consumers. Conclusions. Supplement of central high-quality control by local constant temperature/variable flow control at individual heat unit and installation of temperature controllers on heating radiators with mechanical thermostatic head have potential for reduction of the heat energy volume used ineffectively. Increase in level of controllability for heating system together with cheaper and responsive automation systems are basic conditions for increase in quality of heat supply in future.

Biometrics

2011 ◽  
Vol 2 (1) ◽  
pp. 19-34
Author(s):  
Halim Sayoud
Keyword(s):  
New Technologies ◽  
Research Field ◽  
Point Of View ◽  
Human Beings ◽  
Behavioral Characteristic ◽  
Paper Briefly ◽  
Economic Point ◽  
Security Applications ◽  
Automated Methods ◽  
Living Person

The term biometrics is derived from the Greek words: bio (life) and metrics (to measure). “Biometric technologies” are defined as automated methods of verifying or recognizing the identity of a living person based on a physiological or behavioral characteristic. Several techniques and features were used over time to recognize human beings several years before the birth of Christ. Today, this research field has become very employed in many applications such as security applications, multimedia applications and banking applications. Also, many methods have been developed to strengthen the biometric accuracy and reduce the imposture errors by using several features such as face, speech, iris, finger vein, etc. From a security purpose and economic point of view, biometrics has brought a great benefit and has become an important tool for governments and institutions. However, citizens are expressing their thorough worry, which is due to the freedom limitations and loss of privacy. This paper briefly presents some new technologies that have recently been proposed in biometrics with their levels of reliability, and discusses the different social and ethic problems that may result from the abusive use of these technologies.

scholarly journals The state of modern heat power engineering and increasing the economic efficiency of heat supply

2018 ◽  
Vol 245 ◽  
pp. 05002 ◽  
Author(s):  
Tatiana Kharlamova ◽  
Ksenia Osipova
Keyword(s):  
Economic Development ◽  
Heat Supply ◽  
Heat Supply System ◽  
Electric Heating ◽  
Heating System ◽  
Integrated Approach ◽  
Supply System ◽  
Point Of View ◽  
Power Engineering ◽  
Heat Power

The article analyzes the current state of the Russian heat power engineering and identifies the main problems in its economic development. From the position of an integrated approach, the problems of the Russian heat supply system are divided into three categories: technological, economic and social. The using electricity for the needs of heat supply is determined as an effective way of solution these problems. In this context the electric heat supply is offered as an alternative to the modern heat supply system. The article identifies the main factors of electric heating, showing its economic advantages over other types of heat supply systems. On this basis the authors justify the prospects of electric heating system from the point of view of economic development of the Fuel Energy Complex and the national economy as a whole.

scholarly journals RATIONALIZATION OF PRODUCTION OF SHAPED INSERTS FOR ROTOR CASTING

2021 ◽  
Vol 2021 (4) ◽  
pp. 4803-4809
Author(s):  
PAVEL DOSTAL ◽  
◽  
MAREK SADILEK ◽  
Keyword(s):  
Technological Process ◽  
Working Conditions ◽  
Main Part ◽  
New Technologies ◽  
Die Casting ◽  
Point Of View ◽  
Economic Point ◽  
Casting Technology ◽  
Technology Of Production ◽  
Rotor Casting

The article deals with the rationalization of the production of shaped inserts for casting rotors. The theoretical part describes the characteristics of shaped inserts for rotor casting, die casting technology, analysis of the existing technology of production of shaped inserts. The main part of the article is focused on the proposed technological process of production, comparison of existing and proposed process. The article concludes with a technical and economic benefit of the proposed solution and evaluation of the work. Rationalization of production has its justification in the development of the company and thus improve competitiveness in the market. These interventions in production offer the possibility of using new technologies that are beneficial both from an economic point of view and to improve working conditions. The article focuses on the description of the existing technology, its evaluation and subsequent processing of a new technological process.

scholarly journals Impact of Industry 4.0 on decision-making in an operational context

2021 ◽  
Vol 16 (4) ◽  
pp. 500-514
Author(s):  
F. Rosin ◽  
P. Forget ◽  
S. Lamouri ◽  
R. Pellerin
Keyword(s):  
Decision Making ◽  
Industry 4.0 ◽  
New Technologies ◽  
Production Systems ◽  
Point Of View ◽  
Decision Makers ◽  
Process Improvements ◽  
Proposed Model ◽  
Operational Systems ◽  
Decision Making Processes

The implementation of Industry 4.0 technologies suggests significant impacts on production systems productivity and decision-making process improvements. However, many manufacturers have difficulty determining to what extent these various technologies can reinforce the autonomy of teams and operational systems. This article addresses this issue by proposing a model describing different types of autonomy and the contribution of 4.0 technologies in the various steps of the decision-making processes. The model was confronted with a set of application cases from the literature. It emerges that new technologies' improvements are significant from a decision-making point of view and may eventually favor implementing new modes of autonomy. Decision-makers can rely on the proposed model to better understand the opportunities linked to the fusion of cybernetic, physical, and social spaces made possible by Industry 4.0.

scholarly journals Optimal Maintenance for Degrading Assets in the Context of Asset Fleets-A Case Study

2020 ◽  
Vol 6 ◽  
Author(s):  
Frederik Schulze Spüntrup ◽  
Giancarlo Dalle Ave ◽  
Lars Imsland ◽  
Iiro Harjunkoski
Keyword(s):  
Decision Making ◽  
Gas Production ◽  
Academic Community ◽  
Point Of View ◽  
Mixed Integer ◽  
Optimal Decision ◽  
Small Scale ◽  
Computational Point ◽  
Optimal Maintenance

Decision-making for maintenance of engineering assets is a common challenge in the process industry due to ongoing degradation. With an increasing company-size, this problem becomes more complex from an operational and computational point of view. This paper introduces a case study to the academic community that represents the problem of optimal decision-making in the context of large asset fleets. The case study poses a large fleet of offshore compressors for gas production with a specific network structure. Two exemplary discrete-time mixed integer linear programming models following the Resource Task Network framework are presented. They address asset deterioration due to effects such as fouling by suggesting specific maintenance actions as a set of different countermeasures. Novel enumerator formulations are a computationally efficient and extendable way to model the various degradation types. Results show the benefit of optimal maintenance in the application to asset fleets. The decision-support that is delivered by the scheduling and planning approach helps to determine which maintenance type should be conducted and at what time. The paper demonstrates the benefits of optimal (long-term) schedules for maintenance, but indicate at the same time the need for efficient algorithms in the context of large asset fleets, in contrast to common industrial case studies that are rather small-scale.

scholarly journals Integration concept of Digital Shadows and BIM for a long-term optimal decision support in factory planning

2021 ◽  
Author(s):  
Vladimir Badenko ◽  
Nikolai Bolshakov ◽  
Alexander Fedotov ◽  
Florian Becker ◽  
Aleksandra Müller
Keyword(s):  
Decision Support ◽  
Digital Technologies ◽  
Data Access ◽  
Point Of View ◽  
Optimal Decision ◽  
Economic Point ◽  
Factory Planning ◽  
Building Information ◽  
Digital Asset ◽  
Factory Of The Future

Abstract Industrial objects nowadays rapidly transform due to the development of digital technologies. The concept of the Factory of the Future (FoF) involves digitization of all parts of the factory. In this paper two technologies are motivated and considered as the basic technologies that should be used in FoF: Digital Shadow (DS) and Building Information Modelling (BIM). Basic theory on these issues is given and potentials of BIM and DS integration is formulated. Based on the ability of digital technologies, their integration and convergence to generate value, definition Digital Asset is introduced from the economic point of view as a digital resource which brings economic benefit. A concept of integrating BIM and DS technologies for decision support in factory planning is formulated, including Life Cycle Assessment (LCA) and semantic modeling. The concept includes a description of the aggregate of technologies and their interconnections as a Digital Asset of the FoF. Further research objectives are focused on integration of BIM and DS which requires their interoperability ensured by an Ontology-Based Data Access (OBDA) approach, based on the Semantic web.

scholarly journals IT&C support for decision making in notary offices

2013 ◽  
Vol 3 (2) ◽  
pp. 1
Author(s):  
George Schin ◽  
Margareta Racovita
Keyword(s):  
Decision Making ◽  
Development Strategy ◽  
Business Development ◽  
Point Of View ◽  
Feasibility Analysis ◽  
Optimal Decision ◽  
Expected Values ◽  
The Right ◽  
Different Levels

The aim of this paper is to determine the most efficient strategic alternative in the case of a notary office, by taking into account the expected values associated to different levels of supplementary services requests by its customers. The determination of expected monetary values associated to the strategic alternatives by means of WinQSB software confirms the hypotheses concerning the feasibility analysis results and the manager’s ability to make the right decision from the financial point of view. Thus, the manager of the notary office will be able to make efficient decisions regarding the business development plan by using appropriate software tools, which deliver real time results in different simulation scenarios. Once the optimal decision is found, the notary office can seek to improve its business development strategy by taking into account more options and levels of supplementary services requests from the part of its customers.

scholarly journals Urban and Extra-Urban Hybrid Vehicles: A Technological Review

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2924 ◽  
Author(s):  
Roberto Capata
Keyword(s):  
New Technologies ◽  
Transportation Systems ◽  
Hybrid Vehicles ◽  
Point Of View ◽  
Operating Life ◽  
Public Authorities ◽  
Economic Point ◽  
Large Cities ◽  
Energy Flows ◽  
Vehicle Management

Pollution derived from transportation systems is a worldwide, timelier issue than ever. The abatement actions of harmful substances in the air are on the agenda and they are necessary today to safeguard our welfare and that of the planet. Environmental pollution in large cities is approximately 20% due to the transportation system. In addition, private traffic contributes greatly to city pollution. Further, “vehicle operating life” is most often exceeded and vehicle emissions do not comply with European antipollution standards. It becomes mandatory to find a solution that respects the environment and, realize an appropriate transportation service to the customers. New technologies related to hybrid–electric engines are making great strides in reducing emissions, and the funds allocated by public authorities should be addressed. In addition, the use (implementation) of new technologies is also convenient from an economic point of view. In fact, by implementing the use of hybrid vehicles, fuel consumption can be reduced. The different hybrid configurations presented refer to such a series architecture, developed by the researchers and Research and Development groups. Regarding energy flows, different strategy logic or vehicle management units have been illustrated. Various configurations and vehicles were studied by simulating different driving cycles, both European approval and homologation and customer ones (typically municipal and university). The simulations have provided guidance on the optimal proposed configuration and information on the component to be used.

scholarly journals Aymara Communities in the Lluta River Basin and Precordillera of the Arica and Parinacota Region: Agricultural Activities and Economic Projections

2021 ◽  
Author(s):  
Germán Sepúlveda-Chavera ◽  
Iván Muñoz ◽  
Denise Cifuentes ◽  
Patricio Muñoz
Keyword(s):  
New Technologies ◽  
Atacama Desert ◽  
Point Of View ◽  
Agricultural Activities ◽  
Economic Point ◽  
Local Species ◽  
Extreme North ◽  
Endemic Flora ◽  
Chilean Population

The Region of Arica and Parinacota is characterized as an agricultural region located in Atacama Desert at the extreme north of Chile. Its agriculture has allow developing the economy of pre- and post-Hispanic communities, which have been settled since colonial times at different locations in the region. This article is focused on how Aymara communities of Lluta Valley and Precordillera of Arica and Parinacota Region have been included as part of Chilean population, particularly, from social and economic point of view. Furthermore, a characterization of agronomic aspects of the main towns of this zone, and commercialization of agricultural and livestock is included. It must be considered that the evolution of this region would have an important impact in the safeguard on endemic flora and fauna so that it is imperative to protect the genetic heritage of local species and to promote new technologies which allow the production of commercial products from Arica and Parinacota Region.

Sign in / Sign up

Export Citation Format

Share Document