THE ECONOMIC EFFECT OF USING THE NEW METHOD TO IMPLEMENT MEASURES TO REDUCE NOISE BY NOISE INSULATION AND ACOUSTIC BARRIER FOR GAS PIPELINES

Akustika ◽  
2021 ◽  
pp. 116
Author(s):  
Svetlana Kuzminova ◽  
Vladimir Tupov
Keyword(s):  
Noise Reduction ◽  
Power Plants ◽  
Thermal Power ◽  
Economic Effect ◽  
Gas Pipeline ◽  
New Method ◽  
Economic Losses ◽  
Gas Pipelines ◽  
Reduced Costs ◽  
The Cost

An important environmental problem is exceeding the current sanitary standards on the territory of thermal power plants (TPP) and in the surrounding residential area. One of the intense sources of noise at the TPP is the gas distribution points (GDP) and the gas pipeline after it. The noise at the exit of the GDP building and along the length of the gas pipeline can be 110 dBA. Effective methods of reducing noise from GDP and gas pipelines are the installation of acoustic barriers and the use of noise insulation materials. The most effective is a set of measures to reduce noise including the joint use of the barrier and noise insulation. The cost of noise reduction measures depends on many factor, including the type of materials, the thickness of the construction as well as the required amount of noise reduction. Earlier in the works of the authors, it was shown that when planning noise reduction measures, it is necessary to achieve equality of the specific reduced costs by using noise insulation and acoustic barriers. This will ensure minimal noise reduction costs. In this paper, the economic effect of using the new method is considered. A new formula is proposed for determining the economic losses in the case of inequality of the specific reduced costs for shielding and noise insulation. It is shown how the economic losses increase in the case of an increase in the ratio between the specific reduced costs of shielding and noise insulation.

ECONOMIC EFFICIENCY OF NEW TECHNOLOGIES IN TREATMENT OF PARTIAL DEGENERATIVE DAMAGES OF THE ROTARYBICEPITAL COMPLEX

2021 ◽  
pp. 126-130
Author(s):  
А.V. Savchuk ◽  
◽  
О.A. Danilenko ◽  
Е.R. Makarevich ◽  
Е.V. Zhuk ◽  
...  
Keyword(s):  
Conservative Treatment ◽  
Economic Efficiency ◽  
New Technologies ◽  
Economic Effect ◽  
Economic Losses ◽  
Medical Technologies ◽  
Treatment Technologies ◽  
New Treatment ◽  
The Cost ◽  
The City

The authors studied the economic efficiency of conservative treatment of 196 patients with injuries of the rotator-bicepital complex on the basis of the City Clinical Hospital № 6 in Minsk for the period from 2013 to 2020 using the developed approaches and the introduction of new technologies. As a result of shortening the length of stay of patients in a hospital with the use of new treatment technologies, it can reduce the cost of money. The total economic effect was 30726 BYN. The study of the parameters of economic efficiency indicates the feasibility of using the introduced medical technologies. As a result, the total amount of savins from reducing economic losses amounted to 24 006 BYN.

scholarly journals Industry 4.0 and basic principles of a new architecture for control of power plants processes

2018 ◽  
Vol 44 ◽  
pp. 00008
Author(s):  
Nikolay Amosov ◽  
Alexander Andryushin ◽  
Edik Arakelyan ◽  
Anatoliy Kosoy
Keyword(s):  
Process Control ◽  
Industry 4.0 ◽  
Power Plants ◽  
Thermal Power ◽  
Economic Effect ◽  
Basic Principles ◽  
Level Of Automation ◽  
Software And Hardware ◽  
Plant Level ◽  
Level Analysis

The results of the level analysis of intellectuality and efficiency of up-to-date automated process control systems (APCS) based on software and hardware systems (SHS) are presented. It was demonstrated that, despite the widespread implementation of modern software and hardware systems during the construction of new APCS and upgrading the existing ones for thermal power plants (TPP), improvement of the process control quality, optimization of their modes and parameters take place generally at the equipment and power unit level and to a far lesser extent – at the power plant level and as a result – insufficient level of automation and low technical and economic efficiency. Another conclusion from the performed analysis – when implementing control algorithms in the APCS based on the up-to-date SHS, their wide data and software capabilities are not fully used. The main ways of further APCS improvement for the purpose of further increasing of their efficiency and the level of intelligence of SHS based APCS of power plants are presented. The possibility of their implementation is considered with application of the basic principles laid in the concept Industry 4.0. The possible economic effect from the implementation of the proposed solutions for increasing the intelligence and efficiency of the SHS based APCS was assessed. A brief description of the configuration of the proposed SHS based control system is given.

A New Method of On-Line ELD for Thermal Power Plants

1988 ◽  
Vol 21 (11) ◽  
pp. 395-401
Author(s):  
Y. Tamura ◽  
Y. Fukuyama ◽  
S. Yazawa ◽  
J. Hosaka ◽  
N. Joho ◽  
...  
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
New Method ◽  
Thermal Power Plants ◽  
On Line

scholarly journals Structural-&-Phase Condition and the Damageability of the Welded Joints of Steam Pipelines at Thermal Power Plants

2021 ◽  
pp. 56-63
Author(s):  
Vitaly Dmitrik ◽  
Igor Kasyanenko ◽  
Alexandr Krakhmalyov
Keyword(s):  
Service Life ◽  
Welded Joints ◽  
Power Plants ◽  
Low Cycle Fatigue ◽  
Thermal Power ◽  
Economic Effect ◽  
Structural Phase ◽  
Initial Structure ◽  
Thermal Power Plants ◽  
Phase Condition

The authors studied the interrelation between the type of structure and the damage rate of the welded joints of steam pipelines made of the heat-resistant pearlitic steels that were operated for a long time, i.e. more than 270 thousand hours in the conditions of creepage and low-cycle fatigue. The purpose of this research was to establish the interrelation between the structural-&-phase condition of the metal used for welded joints of the elements of steam systems and their damageability rate for the service life of welded joints exceeding 270 thousand hours. During the studies, the methods of optical and electron microscopy were used according to the requirements of the guideline documentation and also the methods that are used for the determination of mechanical properties. The level of their reliability has been substantiated and the residual life has been determined. To impart functional performances to welded joints we used well-known methods that were appropriately emended according to the structural changes of above joints. Such changes condition the conversion of the original structure of welded joints into the ferrite-carbide mixture. The availability of the conversion process of the initial structure on the thermal action zone sections (TAZ) of welded joints has essential distinctions due to a different disposition of metal to its own damageability. On the whole, the welded joints are damaged more intensively in comparison to the basic metal of steam pipelines. The analysis of the structural state of welded joints in the steam pipelines of thermal power plants as for the extension of their service life results in a considerable economic effect. Understanding the fact that the metal deterioration in welded joints adheres mainly to the fragile mechanism we managed to establish the level of their damageability that demands the renewal of damaged welded joints. We believe that the damageability level of welded joints that tots up to 0.25 or 0.35 of the volume of their TAZ section should be considered as critical for the service life exceeding 270 thousand hours. The damaged welded joints should be renewed throughout the time period of 15 to 20 thousand hours as soon as the specified damageability level is attained.

scholarly journals Aggregate estimation of investments in power plant units using a parametric power function

2020 ◽  
pp. 123-138
Author(s):  
Pavel Shchinnikov ◽  
◽  
Alina Frantseva ◽  
Ivan Sadkin ◽  
◽  
...  
Keyword(s):  
Power Plant ◽  
Power Function ◽  
Capital Investment ◽  
Power Plants ◽  
Thermal Power ◽  
Thermodynamic Characteristics ◽  
Engineering System ◽  
Parametric Function ◽  
Aggregate Estimation ◽  
The Cost

In the course of designing new generating equipment for power plants and their thermal circuits, in the absence of information about their cost, analog indicators and/or expert assessments are used in the design practice. This approach allows us to compare various options if they can be brought to a comparable form and when the same type of equipment is used. When it is necessary to compare options that differ not only in the specified capacity, but also in the equipment configuration, a more accurate assessment of investment is required. The article proposes a method for estimating capital investment in power plants using a power parametric function. Capital investment is assessed for each unit of the power plant and its engineering system. A special feature of the approach is that the higher the cost of the unit is, the higher its thermodynamic characteristics, power, time of load use, etc. These factors are taken into account by the exponent in the power function. In addition, the correction coefficients take into account the configuration of the equipment, its climatic design, and configuration features. The combination of factors that are taken into account in the power function makes it possible to obtain an estimate of the cost of equipment in different versions. The uniformity of the problem statement makes it possible to apply the approach both to design tasks and to scientific and applied tasks of comparing the existing, newly developed and promising technologies. This paper presents the updating and development of the method developed in previous years at the department of thermal power plants of NSTU. Equations for determining investment in the main units and technical systems of power plants are presented. Estimates of investment in power plants currently under construction in Russia are made. It is shown that investment in power plants in Russia is 20-50% lower than in the USA and Europe, and 20-30% higher than in China.

Development of an algorithm of implementation of programs of repair of steam boilers and turbines of TPPs based on technical condition of power equipment

2021 ◽  
Vol 14 (1) ◽  
pp. 40-44
Author(s):  
N. V. Baidakova ◽  
A. V. Afonin ◽  
A. V. Blagochinnov
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Technical Condition ◽  
Equipment Maintenance ◽  
Power Equipment ◽  
Equipment Failure ◽  
Software Market ◽  
Maintenance System ◽  
Steam Boilers ◽  
The Cost

Deterioration and aging of the technical fleet of thermal power facilities lead to an unpredictable shutdowns of power equipment. Therefore, it is necessary to create a special approach in maintenance and repair programs, taking into account the possibility of predicting the moment of onset of the defect, its development, as well as the time of possible equipment failure. The equipment maintenance system used at the enterprises is based on the collection of retrospective data on defects and failures on the main and auxiliary equipment of the TPP and summarizing statistics on identical or similar equipment samples. Analysis of domestic and foreign methods of maintenance and organization of repair, as well as possibility of their application in modern power engineering is given. In order to create an efficient production asset management system, which addresses the problem of finding a balance between the potential risk of losses associated with both the operation of equipment and the cost of correcting defects, new class systems are now used in the software market, which carry out equipment maintenance based on the forecast. In order to optimize the equipment maintenance system and ensure uninterrupted and reliable operation of the equipment at minimum operating costs, as well as to reduce equipment downtime, unscheduled and emergency operations, it is advisable to use a modern approach to manage both reliability and risk, as well as the cost of asset ownership. This will enable to control the economic efficiency of the use of production assets. The necessity of creation of an algorithm of implementation of repair programs of power equipment base on technical condition for its use in digital power systems is shown. An algorithm is proposed for implementing the repair program of power units of electric power plants, including steam boilers and turbines of thermal power plants, differing by taking into account the technical condition of power equipment, which allows recognizing the defect that has appeared, determining the cause of its occurrence, its evolution and the duration of possible equipment failure. In the developed repair maintenance algorithm, it is proposed to make a transition from statistical empirical assessments of the technical condition of the equipment to objective estimates obtained on the basis of automated technical diagnostics systems and predictive analysis of situations.

scholarly journals Comparison of Cooling Systems in Power Plant Units

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6365
Author(s):  
Alexander Genbach ◽  
Hristo Beloev ◽  
David Bondartsev
Keyword(s):  
Power Plants ◽  
High Efficiency ◽  
Limit State ◽  
Thermal Power ◽  
Economic Effect ◽  
Electrical Power ◽  
Porous System ◽  
Porous Structures ◽  
Cooling Systems ◽  
Power Stations

A new porous system in power plants allowing the management of the crisis of heat exchange at boiling water in porous structures has been investigated. This study refers to the thermal power plants of electrical power stations and devices for cutting natural and artificial mineral media. Combustion chambers and supersonic nozzles were cooled by different porous structures. The optimum cell sizes of the porous structures were determined and data on the heat transfer capacity for the (critical) heat flow were obtained. A thermal device in the form of a rocket-type burner with a detonation jet showed high efficiency for capillary-porous and flow-through cooling systems. The economic effect per burner is not less than 200–300 dollars, and the coolant consumption is reduced by dozens of times, which is environmentally important. A comparative evaluation of the investigated structures and coatings has advantages over other cooling systems. The integration of mesh structures with capillary-porous coatings of natural mineral media produces a synergistic effect of combining them into a technology of their manufacturing, the expansion of critical loads removal and control of the limit state of the coatings.

scholarly journals Efficiency of solar and wind energy use in the countries of Central and North-East Asia

2020 ◽  
Vol 209 ◽  
pp. 04002
Author(s):  
Oleg Marchenko ◽  
Sergei Solomin
Keyword(s):  
Wind Energy ◽  
East Asia ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Economic Effect ◽  
Energy Sources ◽  
Gobi Desert ◽  
Cost Of Electricity ◽  
North East ◽  
The Cost

This paper investigates the effectiveness of renewable energy sources using solar and wind energy in the countries of Central and North-East Asia. The analysis was carried out in two stages. At the first stage, the efficiency of wind and solar installations in different climatic conditions was compared by the criterion of the cost of electricity. At the next stage of analysis, an optimization mathematical model was used to study the system that simultaneously includes wind and solar installations, backup energy sources and batteries. The model takes into account system effects caused by the interaction of the system elements between themselves and with the environment. It solves the problem of mathematical programming — the search for the minimum of the objective function (total costs) at some constrains. The model is used to study the economic efficiency of the large-scale construction of solar power plants in the Gobi Desert. It is shown that the joint use of solar and wind energy gives a positive economic effect, i.e. energy cost are less than with separate use of these energy sources. Under suitable wind conditions such systems reduces the cost of electricity by more than a quarter compared to the option of using solar energy only.

A NEW METHOD OF ON-LINE ELD FOR THERMAL POWER PLANTS

1989 ◽  
pp. 395-401
Author(s):  
Y. Tamura ◽  
Y. Fukuyama ◽  
S Yazawa ◽  
J. Hosaka ◽  
N. Joho ◽  
...  
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
New Method ◽  
Thermal Power Plants ◽  
On Line

Thermo-Economics Diagnosis for Large Steam Turbine Sections in Power Plants

2013 ◽  
Vol 805-806 ◽  
pp. 496-503
Author(s):  
Yong Feng Shi ◽  
Hao Chang ◽  
Bao Yu Wang ◽  
Jian Qun Xu ◽  
Ke Yi Zhou
Keyword(s):  
Power Plants ◽  
Cost Model ◽  
Thermodynamic Simulation ◽  
Thermal Power ◽  
Cost Effective ◽  
Energy System ◽  
Structure Theory ◽  
Product Concept ◽  
Operation Analysis ◽  
The Cost

In this paper, a method based on the thermo-economics structure theories and the prospect diagnosis will apply in the 630MW power plants. To make use of thermodynamic simulation establish system of the thermo-economics produce model. The thermo-economic model and the exergy cost model for the plant based on the Fuel-Product concept have been defined to quantify the productive interaction between different devices. The paper analyses the 3VWO and 4VWO conditions and the effects of the operating parameters on the exergy cost of each component have been studied. The results showed that the Structure Theory is a powerful and effective tool, which can make up the insufficiencies of the conventional thermodynamic methods and can be used for the cost-effective operation analysis and optimization in thermal power plants and other complex energy system.

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