Energy-Saving Electrical Installations for Heat Supply of Agricultural Objects

2019 ◽  
pp. 96-122 ◽  
Author(s):  
Dmitry Tikhomirov ◽  
Alexey Vasiliev ◽  
Stepan Dudin
Keyword(s):  
Energy Saving ◽  
Heat Supply ◽  
Electrical Energy ◽  
Electrical Equipment ◽  
Physical Models ◽  
Thermal Processes ◽  
High Quality ◽  
Technological Processes ◽  
Effective Use ◽  
Operating Regimes

Electrical energy in the thermal processes of agricultural production has a number of technical and technological advantages in comparison with other energy carriers. At the same time, electricity is the most high-quality but expensive type of energy. The effective use of electrical energy in thermal processes is possible with the implementation of all its advantages over fuel energy. This requires a system of technical, economic, and energy analysis and the selection justification of the most effective systems and technical means of heat supply of stationary agricultural technological processes. The chapter presents functional and technological schemes, physical models, the experimentally obtained dependencies, parameters, and operating regimes of the developed energy-saving electrical equipment and systems for the main thermal technological processes.

scholarly journals Audit Energi dan Analisis Peluang Penghematan Energi di PT. Daikin Air Conditioning Makassar

2018 ◽  
Vol 5 (2) ◽  
pp. 115
Author(s):  
Purwito Purwito ◽  
Tadjuddin Tadjuddin ◽  
Akbar Akbar
Keyword(s):  
Energy Saving ◽  
Air Conditioning ◽  
Electrical Energy ◽  
Electrical Equipment ◽  
Energy Audit ◽  
Turn On ◽  
User Facility

Energy audit is an activity to identivy how muchenergy is used as well as the steps that are needed in order toconcerve energy on an energy user facility. PT. Daikin AirConditioning Makassar using air conditioning equipments thatuses electrical energy nearly 60%. This study aims to determinethe used of electrical energy and energy saving opportunities inPT. Daikin Air Conditioning Makassar. Reseacrh is started withprocessing of electrical equipment data for lighting, airconditioning and other electrical equipments data. Researchresult pointed that the used of electric energyin PT. Daiking AirConditioning Makassar is 111.3 kWh/m2 /year and still below thestandart of IKE and can be savingabout 44 kWH/month forlighting system. Recommendations are to perform load balancingeach phase, turn on the light and air condioning only whenneeded.

Technical fitting-out of agriculture in terms of digitalization: A theoretical background

2020 ◽  
Vol 18 (12) ◽  
pp. 2391-2405
Author(s):  
A.K. Subaeva ◽  
G.S. Klychova ◽  
L.M. Mavlieva
Keyword(s):  
Production Process ◽  
Digital Technologies ◽  
Theoretical Background ◽  
Digital Economy ◽  
Energy Resources ◽  
High Quality ◽  
Study Methods ◽  
Technological Infrastructure ◽  
Agricultural Enterprises ◽  
Technological Processes

Subject. This article discusses the issues related to the technological infrastructure of agriculture, improving the efficiency of energy resources, minimizing labor and material costs, and ensuring the continuity of the production process. Objectives. The article aims to study methods to improve the technological infrastructure of agricultural enterprises in the digital economy terms. Methods. For the study, we used the methods of comparison and classification. Results. The article describes patterns of development of technological processes in agriculture in the digital economy. Conclusions. The technical fitting-out of agriculture in the digital economy should be considered as a set of measures to prepare the industry for the production of high-quality products, which implies the use of digital technologies that minimize human participation in the production process.

scholarly journals McStas (ii): An overview of components, their use, and advice for user contributions

2021 ◽  
Vol 23 (1) ◽  
pp. 7-27
Author(s):  
Peter Kjær Willendrup ◽  
Kim Lefmann
Keyword(s):  
Review Paper ◽  
Time Of Flight ◽  
Physical Models ◽  
High Quality ◽  
Physical Elements ◽  
Main Component ◽  
Continuous Source ◽  
Component Class

A key element of the success of McStas is the component layer where users and developers alike are contributing to the description of new physical models and features. In McStas, components realise all physical elements of the simulated instrument from source via optics and samples to detector. In this second review paper of the McStas package, we present an overview of the component classes in McStas: sources, monitors, optics, samples, misc, and contrib. Within each component class we give thorough examples of high-quality components, including their algorithms and example use. We present two example instruments, one for a continuous source and one for a time-of-flight source, that together demonstrate the use of the main component classes. Finally, we give tips and instructions that will allow the reader to write good components and elucidate the pathway of contributing new components to McStas.

IntelliHome: An internet of things‐based system for electrical energy saving in smart home environment

2019 ◽  
Vol 36 (1) ◽  
pp. 203-224 ◽  
Author(s):  
Mario A. Paredes‐Valverde ◽  
Giner Alor‐Hernández ◽  
Jorge L. García‐Alcaráz ◽  
María del Pilar Salas‐Zárate ◽  
Luis O. Colombo‐Mendoza ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Energy Saving ◽  
Home Environment ◽  
Smart Home ◽  
Electrical Energy ◽  
Smart Home Environment

Requirements for explosion and fire safety of industrial enterprises

2020 ◽  
pp. 18-23
Author(s):  
A. S. Moshnenko ◽  
E. S. Krivoshey ◽  
I. N. Smirnova
Keyword(s):  
Fire Safety ◽  
Electrical Equipment ◽  
High Quality ◽  
Industrial Enterprises ◽  
Basic Concepts ◽  
Explosion And Fire Safety

The modern requirements for explosion and fire safety of industrial enterprises are considered. Equipping the production with high-quality explosion-proof electrical equipment ensures the safety of resources and people's lives. Basic concepts are given, principles and classifications are described, international and Russian standards are indicated, which should be followed by manufacturers of such devices.

Research on Energy-Saving Algorithms with Migration Energy Consumption in Heterogeneous Cloud Environment

2014 ◽  
Vol 986-987 ◽  
pp. 1383-1386
Author(s):  
Zhen Xing Yang ◽  
He Guo ◽  
Yu Long Yu ◽  
Yu Xin Wang
Keyword(s):  
Cloud Computing ◽  
Energy Consumption ◽  
Energy Saving ◽  
Large Scale ◽  
Electrical Energy ◽  
Cloud Environment ◽  
Migration Energy ◽  
Live Migration ◽  
Large Scale Data ◽  
Heterogeneous Cloud

Cloud computing is a new emerging paradigm which delivers an infrastructure, platform and software as services in a pay-as-you-go model. However, with the development of cloud computing, the large-scale data centers consume huge amounts of electrical energy resulting in high operational costs and environment problem. Nevertheless, existing energy-saving algorithms based on live migration don’t consider the migration energy consumption, and most of which are designed for homogeneous cloud environment. In this paper, we take the first step to model energy consumption in heterogeneous cloud environment with migration energy consumption. Based on this energy model, we design energy-saving Best fit decreasing (ESBFD) algorithm and energy-saving first fit decreasing (ESFFD) algorithm. We further provide results of several experiments using traces from PlanetLab in CloudSim. The experiments show that the proposed algorithms can effectively reduce the energy consumption of data center in the heterogeneous cloud environment compared to existing algorithms like NEA, DVFS, ST (Single Threshold) and DT (Double Threshold).

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.

scholarly journals Maximizing Energy Saving by Solar Power based Optimal Supply Side Management

2019 ◽  
Vol 8 (12) ◽  
pp. 388-395
Keyword(s):  
Solar Energy ◽  
Energy Saving ◽  
Electrical Energy ◽  
Current Control ◽  
Power Supplies ◽  
Control Scheme ◽  
Physical Output ◽  
And Control ◽  
Current Energy ◽  
A Current

Energy saving can be maximized by rectifying the intermediate conversion processes involved during the utilization of solar energy. The system eliminates the transformation of electrical form of solar energy into another form by directly utilizing its electrical energy in the management and control of power supplies obtained from renewable (solar) and conventional (mains) energy sources. A current control scheme is presented in which current delivered by solar supply is used to control the current in mains supply in such a way that both currents are inversely proportional to each other. Any increment in solar current opposes mains current in the same proportion and vice versa. A balanced common physical output is resulted from the electrical load supplied by each source separately. A natural variation in solar radiation is utilized to fluctuate the solar current which is further used to change the mains current. Energy saving is maximized in this supply management by the optimal utilization of solar energy.

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