Analysis of Heat Processes in the Energy Supply System of a Gas-Using Feed Boiler

2020 ◽  
Vol 67 (1) ◽  
pp. 71-77
Author(s):  
Anatoliy M. Shuvalov ◽  
Aleksey N. Mashkov ◽  
Dmitriy A. Tikhomirov
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Power Supply ◽  
Energy Efficient ◽  
Energy Supply ◽  
Power Supply System ◽  
Energy Savings ◽  
Self Regulation ◽  
Supply System ◽  
Energy Supply System

The energy audit conducted on the use of fuel and energy resources in agriculture in the Tambov region showed that energy costs in the cost of production of agricultural products, depending on the type of products produced (milk, meat, vegetables grown in greenhouses, etc.) and their production technology, reach 15-50 percent. On large livestock farms, forage shops and inter-district feed mills are being built for the feed production. Gas-fired cooking cauldrons of low capacity (of 40-250 kilogram per hour) are mainly used for small and private farms. Analysis of low-power cooking boilers has shown that it is possible to improve their energy supply system by applying a method of regulating gas in proportion to the consumed heat flow. Energy savings can reach 40-50 percent. (Research purpose) The research purpose is in designing an equation system for mathematical description of the heat and energy balance of a gas-using cauldron with self-regulation of power to identify energy-efficient modes of its operation. (Materials and methods) Methods of system analysis and synthesis has been used. of knowledge existing in the field of ongoing research on the development of a gas-using digester with self-regulation of power. The methods are based on the theory of heat and mass transfer. (Results and discussion) The article presents a theoretical analysis of heat and power processes occurring in the power supply system of a cauldron with self-regulating power. The authors have designed a heat balance equation describing the processes of heat and mass transfer in a cauldron to identify effective modes of operation of such a power supply system. The article presents derived formulas for determining the useful heat for heating the product in the cauldron, heat loss for heating metal structures, from the enclosing structures to the environment, with outgoing exhaust gases, and from chemical underburning. (Conclusions) The article presents a system of equations that allows to mathematically describe the processes of heat and mass transfer in a gas-using cauldron with self-regulation of power to identify the most energy-efficient modes of its operation. It was found that by improving the power supply system of cauldron by applying a method of regulating gas in proportion to the consumed heat flow, it is possible to achieve energy savings of up to 40-50 percent.

scholarly journals INTEGRATED ENERGY SUPPLY SYSTEM WITH THE USE OF VENTILATION SYSTEMS

2020 ◽  
Author(s):  
V. Stepanenko ◽  
Y. Veremiichuk
Keyword(s):  
Energy Efficiency ◽  
Power Supply ◽  
Energy Supply ◽  
Air Conditioning ◽  
Power Supply System ◽  
Negative Impact ◽  
Energy System ◽  
Supply System ◽  
Energy Supply System ◽  
Air Conditioning Systems

The implementation of an integrated energy supply system is an effective way to increase energy efficiency, reduce CO2 emissions and increase the use of renewable energy, as well as provide opportunities for energy production, conversion and storage in interconnected infrastructures for energy system operators and consumers. Also, increasing the level of energy efficiency of the energy supply system is one of the important strategies to slow down the growth of demand and mitigate the negative impact on health, the economy and the environment. The article considers the integrated use of energy, the introduction of energy hubs as part of future energy networks and proposes a schematic diagram of an integrated energy supply system. The article presents the results of modeling and computational experiment of ventilation and air conditioning systems in the integrated power supply system, taking into account the technical and operational characteristics of SES, regulatory and technical documents and building codes. According to the results of the study, it is established that the schedule of SES generation and the schedule of electricity consumption by ventilation and air conditioning systems are similar, which leads to a reduction in operating costs and a reduction in the load on the building's power supply system. The scientific substantiation of the integration of the energy storage system into the energy supply structure has been further developed, which will ensure the reliability of the power supply and the efficiency of the solar power plant.

THE DETERMINATION OF THE PROSPECTIVE COMPOSITION OF THE POWER SUPPLY SYSTEM AS A PART OF COMBAT EQUIPMENT COMPLEXES OF SERVICEMENOF MILITARY RECONNAISSAHCE UNITS OF THE ARMED FORCES OF UKRAINE

2019 ◽  
Vol 2 (12) ◽  
pp. 46-54
Author(s):  
A. Honcharuk ◽  
V. Oleniev ◽  
V. Shlapak ◽  
V. Didyk ◽  
N. Oleniev
Keyword(s):  
Military Personnel ◽  
Power Supply ◽  
Energy Supply ◽  
Power Supply System ◽  
Armed Forces ◽  
Supply System ◽  
Power Supplies ◽  
Energy Supply System ◽  
Military Equipment ◽  
System Components

In a certain perspective, the development of military equipment of military personnel should be aimed at equipping the military units with modern models of small arms that meet the world standards in terms of aiming, range and accuracy of shooting, armor-piercing, ammunition, energy supply, weight indicators etc. The priorities of logistical support are determined by: equipping the personnel with modern combat equipment complexes, which will consist of field uniforms at the level of the best world samples and personal protective equipment, night vision devices, navigation and communication equipment (with the necessary level of energy supply, energy security, security); search for new materials and technologies for the protection of manpower, terrestrial and aerial vehicles (composite nanostructured masking coatings with high thermal conductivity to reduce the likelihood of detection in the infrared spectrum by means of observation, detection, recognition) etc. The Individual Equipment Set of Personnel (IESP) remains one of the most important components that contributes to improving combat effectiveness and reducing personnel losses when performing combat missions. At the present stage of IESP development, priority is given to the creation of advanced systems of defeat, control and communication, protection, life support and energy supply, as well as increased soldier maneuverability in combat at the turn of 2020. A generalized analysis of the main tasks of creating a combat equipment complex (CEC) for the serviceman of the Armed Forces of Ukraine makes it possible to state that the fulfillment of all the intended goals and tasks should be ensured and accompanied by a highly effective system of scientific research and scientific support of the state programs of development of all systems and elements of the CEC. The power supply system and its components (chargers, power supplies, power converters and transmitters, means of controlling the system components) are one of the most important components of equipment. The most important stage of substantiation of the perspective composition of the energy supply system (chargers, power sources, means of transformation and transmission of electricity, means of controlling the performance of system components) in the complexes of combat equipment of military intelligence units is a complex assessment of the contribution to the effectiveness of combat based on mathematical modeling of fighting. According to the basic principles of the system approach, when developing requirements for individual subsystems, it is necessary to proceed from the basic purpose of the whole system as a whole, expressed in terms of its efficiency. This approach to the study of the energy supply system (chargers, power supplies, means of transformation and transmission of power, means of monitoring the performance of system components) in the complexes of military equipment of military intelligence units of the Armed Forces of Ukraine allows to choose rational option from the many options and direct the priority direction of upgrading of power supply system (chargers, power supplies, means of conversion and transmission of electricity, means of controlling work system components) in the complexes of military equipment of military personnel.

Application of Markov Chain to Determine the Electric Energy Supply System Reliability for the Cargo Control System of LNG Carriers

2013 ◽  
Author(s):  
Erick Miguel Portugal Hidalgo ◽  
Dennis Wilfredo Roldán Silva ◽  
Gilberto Francisco Martha de Souza
Keyword(s):  
Markov Chain ◽  
Control System ◽  
Power Supply ◽  
Energy Supply ◽  
Power Supply System ◽  
Electric Energy ◽  
Supply System ◽  
System Failure ◽  
Energy Supply System ◽  
Electric Power Supply

The natural gas industry, as well as other industrial activities, is not free from accidents, which can cause serious consequences to the integrity of people and properties. For this reason, it is necessary to develop studies to determine what are the possible causes of LNG leakage during the loading or unloading operation. This paper aims to determine the reliability of the Cargo control system electric power supply system applying Markov Chain technique. This reliability modeling tool is used because the system consists of several components in passive parallel. Based on the reliability analysis maintenance recommendations are proposed aiming at reducing system failure probability. The method used in this paper is divided in three steps. The first step consists in carrying out a study to identify what are the components that are part of electric power supply system. The second step involves the reliability analysis of the electric energy supply system. Finally some maintenance recommendations are presented aiming at reducing system failure rate. This analysis is used for the analysis of a LNG carrier operating in a Brazilian harbor indicating the most probability failure modes of this system and the most suitable maintenance actions to avoid them.

scholarly journals THE NEED TO CREATE A UNIFIED ENERGY SUPPLY SYSTEM FOR THE EASTERN LANDFILL

2021 ◽  
Vol 1 (1) ◽  
pp. 155-156
Author(s):  
Valeriy Gozbenko ◽  
Yuriy Belogolov ◽  
Tuvshintur Bongosuren
Keyword(s):  
Power Supply ◽  
Energy Supply ◽  
Power Supply System ◽  
Supply System ◽  
Energy Supply System ◽  
Railway Line ◽  
Line Section

The article presents the technical justification of the measure aimed at increasing the capacity of the railway line section by strengthening the devices of the power supply system.

scholarly journals Developing a multiagent model of an integrated energy supply system in AnyLogic simulation software

2020 ◽  
Vol 24 (5) ◽  
pp. 1080-1092
Author(s):  
Valery Stennikov ◽  
◽  
Evgeny Barakhtenko ◽  
Gleb Mayorov ◽  
◽  
...  
Keyword(s):  
Power Supply ◽  
Energy Supply ◽  
Power Supply System ◽  
Computer Experiments ◽  
Supply System ◽  
Simulation Software ◽  
Agent Model ◽  
Energy Supply System ◽  
Multi Agent ◽  
Supply Systems

The purpose of this work is to develop a multi-agent model of an integrated energy supply system in the AnyLogic simulation software and to conduct a research on the operation and interaction of objects in this system using the obtained model. A multi-agent approach is proposed to study integrated energy supply systems as it enables to carry out a detailed research of interaction and coordination mechanisms of various elements and subsystems (energy sources, transport subsystems, active consumers, etc.) of the object under investigation. The model is implemented in AnyLogic simulation software that supports designing, development and documenting of the created models, carrying out computer experiments, parameter optimization according to some criterion that enables visualization of the mechanisms of interaction and connection between the agents. A multi-agent model of the integrated power supply system has been developed. Agent state diagrams that take into account the operation of its elements have been created and the principles of their interaction and coordination have been analyzed. The structure of the developed model of an integrated power supply system contains four types of agents and connections between them. An experiment has been conducted on the basis of the developed model, in which the optimal solution was found for energy supply of consumers. The results of the conducted computational experiment show that the specified conditions and restrictions are met; messages and parameters are correctly transmitted between the agents and the agents perform the assigned functions in the system. The results obtained will allow to model real power supply systems of any complexity in order to study the properties and improve the efficiency of these systems. The developed model enables the possibility to model complex processes in an integrated energy supply system which relate to production, transport, distribution and consumption of energy.

Energy-Efficient Lighting System for Greenhouse Plants

2018 ◽  
pp. 204-229 ◽  
Author(s):  
Leonid Yuferev ◽  
Alexander Sokolov
Keyword(s):  
Power Supply ◽  
Energy Efficient ◽  
Power Supply System ◽  
Radiation Power ◽  
Gas Discharge ◽  
Supply System ◽  
Light Sources ◽  
Lighting System ◽  
Spectrum Range ◽  
Frequency Changes

This chapter describes how with the artificial cultivation of plants lamps are required with a certain spectrum of radiation. For lighting plants have developed a special lamp. Industry produces special gas discharge lamp. In these lamps a fixed range of radiation. Recently, there were light sources for plants on LEDs. LEDs can create light with any spectrum range from 360 to 800 nm. The authors of the article give a technique for modeling the spectrum of luminaires and calculating LED lamps for plants. The tests of the developed lamps for plants in dark chambers are given. A description of a resonant regulated power supply system for LED luminaires is given. In the proposed system when the frequency changes radiation power.

Research on Designing and Modeling of the Hybrid Energy Power Supply System

2013 ◽  
Vol 805-806 ◽  
pp. 833-836
Author(s):  
Pu Xie ◽  
Su Ning Zhang ◽  
Man Cao ◽  
Rui Li
Keyword(s):  
Wind Turbines ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Energy Sources ◽  
Energy Supply System ◽  
Hybrid Energy ◽  
Photovoltaic Array ◽  
Network Experiment ◽  
Output Characteristics

Based on traditional complementary power supply system, the actual wind-PV-diesel hybrid energy supply system comprising three energy sources, namely PV, wind and diesel generations based on dc bus is established. Each of the three energy sources is controlled so as to deliver energy at optimum efficiency. Then the designing and computing modeling of distributed sources such as wind turbines, photovoltaic array and battery is proposed. Models of wind turbines, photovoltaic array and characteristics of the battery, respectively established the mathematical model of them, and then the simulation model is respectively built by PSCAD/EMTDC. So a micro-network experiment and simulation platform is established, which can simulate any power of wind and solar power output characteristics.

Integrated assessment of energy supply system of an energy-efficient house

2017 ◽  
Vol 138 ◽  
pp. 443-454 ◽  
Author(s):  
Rasa Džiugaitė-Tumėnienė ◽  
Violeta Motuzienė ◽  
Giedrius Šiupšinskas ◽  
Kęstutis Čiuprinskas ◽  
Artur Rogoža
Keyword(s):  
Energy Efficient ◽  
Integrated Assessment ◽  
Energy Supply ◽  
Supply System ◽  
Energy Supply System

scholarly journals Subway Traction Power Supply System Based on PWM Rectifier

2021 ◽  
Vol 2136 (1) ◽  
pp. 012019
Author(s):  
Xudong Liu
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
High Energy ◽  
Supply System ◽  
Pwm Rectifier ◽  
Energy Supply System ◽  
Traction Power Supply System ◽  
Pwm Rectifiers ◽  
Traction Power Supply ◽  
Traction Power

Abstract At present, PWM rectifier is widely used in various high power and high voltage situations because of its high energy, low harmonic content, constant voltage and bidirectional energy. The energy supply system of subway traction power supply system based on PWM rectifier shows the topology of a dual transformer with three winding transformers and four PWM rectifiers in parallel, which is superior to the modular model. Finally, the correctness of the control strategy is verified by Matlab/Initial simulation.

scholarly journals Battery Available Capacity Meter Built into an AC/DC Telecom Power Supply System

2017 ◽  
pp. 54-61
Author(s):  
Paweł Godlewski ◽  
Ryszard Kobus ◽  
Paweł Kliś
Keyword(s):  
Power Systems ◽  
Power Supply ◽  
Energy Efficient ◽  
Power Supply System ◽  
High Accuracy ◽  
Supply System ◽  
Voltage Measurement ◽  
Full Compliance ◽  
Dc Power ◽  
Remote Management

The article describes the results of testing a Benning AC/DC power supply, with integrated NIT TBA-ST meter. Such integration enables accurate and energy-efficient measurements of available capacity of individual 48-voltage VRLA/AGM batteries with remote management possibilities. The full compliance with the requirements for telecommunication power systems, the great functionality, upgrade ability, immunity to user errors and the high accuracy of capacity and voltage measurement of battery monoblocks of proposed solution are presented.

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