scholarly journals EVALUATION OF ECONOMIC EFFICIENCY OF MANUFACTURING FUEL BRIQUETTES OF HIGH QUALITY

2020 ◽  
Vol 2 (155) ◽  
pp. 88-93
Author(s):  
О. Polyansky ◽  
О. Dyakonov ◽  
О. Skrypnyk ◽  
V. Dyakonov ◽  
I. Buzina
Keyword(s):  
Economic Efficiency ◽  
Practical Importance ◽  
Electric Energy ◽  
Component Composition ◽  
Microwave Drying ◽  
High Quality ◽  
Main Research ◽  
Cost Of Electricity ◽  
Waste Particles ◽  
The Cost

The paper evaluates the economic efficiency of the production of fuel briquettes of high quality. The main problems of the use of waste as fuel are noted. The main research results and a method for the efficient use of polyethylene waste as an energy-saturated component and a binder in the production of solid fuels are described. The technological scheme of a pilot plant and equipment necessary for the implementation of a method for producing briquettes are presented. As a result of improving the technology of manufacturing fuel briquettes, economic indicators were obtained for reducing the cost of electricity for grinding waste, increasing the cost of electric energy for mixing waste particles, reducing the cost of electricity, reducing the cost of electricity for drying, reducing the cost of electricity for sealed packaging.Technical and economic calculations show that the developed technology allows to reduce the time of technical cycles and reduce the technological area. A model of a technological process with an effective sequence of technological operations and the parameters of the optimal component composition are presented. The main factors that have a significant impact on the creation of the structural composition of solid multicomponent fuel are reflected. Defects of a new fuel briquette are shown. This perspective assessment, the relevance and practical importance of solving the problem of the efficient use of polyethylene waste in the production of solid multicomponent fuel is noted. A functional diagram of a device for technologically and economically optimal microwave drying of a briquette mixture in the manufacture of fuel briquettes is presented. This scheme allows you to fully automate the drying process of the briquette mixture, to obtain high quality briquettes and have total costs for the production of fuel briquettes and for drying the briquette mixture. Keywords: polyethylene waste, wood waste, fuel briquettes, biofuel, solid multicomponent composition.

scholarly journals Economic Efficiency Assessment of Using Wood Waste in Cogeneration Plants with Multi-Stage Gasification

2020 ◽  
Vol 10 (21) ◽  
pp. 7600
Author(s):  
Oleg Marchenko ◽  
Sergei Solomin ◽  
Alexander Kozlov ◽  
Vitaly Shamanskiy ◽  
Igor Donskoy
Keyword(s):  
Thermal Energy ◽  
Economic Efficiency ◽  
Power Plants ◽  
Electric Energy ◽  
Biomass Gasification ◽  
Wood Fuel ◽  
Small Power ◽  
Cost Of Electricity ◽  
Wood Processing ◽  
The Cost

The aim of this work is to assess the effectiveness of biomass gasification power plants in Russia (Irkutsk region) and compare them with other types of electricity and heat cogeneration systems. Biomass, which is waste from logging and wood processing, is considered as fuel for gasification plants. As a criterion, the cost of energy is used. Analytical relations are obtained for the cost of electric energy at a given cost of thermal energy and vice versa, thermal energy at a given cost of electric energy. These relationships are applied to assess the economic efficiency and compare small-power plants (up to 200–500 kW) such as mini-combined heat and power (CHP) on fuel chips and fuel pellets, coal-fired CHP and gas and liquid fuel power plants (gas-piston and diesel power plants). The latter are equipped with heat recovery boilers and supply consumers with heat and the electric power simultaneously. The calculation results show that the cost of electricity when using wood fuel is significantly less than the cost of electricity from a diesel power plant due to the use of cheaper fuel. In this regard, for autonomous energy systems of small power, especially near logging points, energy supply from biomass gasification power plants is a preferable solution than the use of diesel power plants. Wood fired energy cogeneration systems (mini-CHP) can also successfully compete with coal and gas power plants if they have cheap wood fuel at their location. With the introduction of carbon dioxide emissions charges, the use of not only wood chips, but also pellets becomes competitive in comparison with coal and gas.

scholarly journals COST-DEPENDENT ELECTRIC CONSUMPTION AS A TOOL OF RISK MANAGEMENT OF NON-PAYMENT FOR ELECTRIC ENERGY OF INDUSTRIAL ENTERPRISES

2019 ◽  
pp. 8-19
Author(s):  
A. P. Dzyuba ◽  
I, A. Soloveva
Keyword(s):  
Power Consumption ◽  
Electricity Markets ◽  
Economic Effect ◽  
Electric Energy ◽  
Electricity Consumption ◽  
Machine Building ◽  
Industrial Equipment ◽  
Cost Of Electricity ◽  
Industrial Enterprises ◽  
The Cost

The growth of indebtedness of industrial enterprises operating in conditions of economic instability for consumed electricity and the sanctions imposed by the energy supplying organizations for late payments, determine the urgency of the problem of managing the risks of non-payment for energy from industrial enterprises. The article is devoted to the description of the method developed by the authors for managing the risks of non-payment of industrial enterprises for consumed electricity, based on the principles of price-dependent electricity consumption. Based on the study of the mechanism of formation of the cost of electricity purchased by industrial enterprises in the wholesale and retail electricity markets, special methods were proposed to control each component of the cost of electricity: electrical energy, electrical power, electricity transmission services. It justifies the need to develop options for operating modes of industrial equipment, such as nominal load mode, load limiting mode, technological minimum load, in order to effectively implement and use price-dependent power consumption in crisis conditions.Modeling scenarios of price-dependent demand management for power consumption is made on the example of a machine-building enterprise and the calculation and component-wise analysis of the economic effect of price-dependent management and the factors influencing its formation are carried out. The developed method allows you to effectively manage the risks of non-payment of industrial enterprises for electricity, as well as minimize the risks of restricting the supply of electricity to industrial facilities and disruptions in the operation of industrial equipment.

COMPETITIVENESS ASSESSMENT OF THE SOLAR SYSTEM OF A HOTEL IN THE VORONEZH REGION

2021 ◽  
pp. 97-105
Author(s):  
Наталья Михайловна Попова ◽  
Дмитрий Михайлович Чудинов ◽  
Ольга Анатольевна Сотникова ◽  
Наталья Александровна Петрикеева
Keyword(s):  
Water Supply ◽  
Electric Energy ◽  
Payback Period ◽  
Hot Water ◽  
Solar Collectors ◽  
Efficient Operation ◽  
Cost Of Electricity ◽  
Voronezh Region ◽  
Hot Water Supply ◽  
The Cost

Вопрос энергообеспечения зданий и сооружений на территориях с малоразвитой инженерной инфраструктурой и децентрализованными системами частично может быть решен применением солнечных систем теплоснабжения (или горячего водоснабжения). Подобные системы - надежные, безопасные, простые и малозатратные в эксплуатации, сокращают потребление традиционных энергоресурсов и эмиссию вредных выбросов в атмосферу. Возможность массового внедрения гелиоустановок в основном сдерживается стоимостными показателями, определяющими срок окупаемости. Ежегодный рост цен на традиционное органическое топливо, возможность изготовления солнечных коллекторов собственными силами и средствами может повысить их привлекательность. В работе произведена оценка рентабельности солнечной системы горячего водоснабжения гостиницы, расположенной в селе Бабяково Воронежской области для двух временных периодов (2005 г. и 2021 г.) с учетом повышения стоимости на электроэнергию, являющуюся основным традиционным энергоресурсом. Солнечные коллекторы гелиосистемы производятся собственными силами и средствами. Внедрение гелиоустановки для нужд горячего водоснабжения в традиционную систему теплоснабжения гостиницы позволит сократить потребление электроэнергии на 44 %. В работе показано, что повышение цены на электроэнергию за период с 2005 г. по 2021 г. не компенсировало рост стоимости материалов на изготовление солнечных коллекторов. При этом срок окупаемости для 2005 г. составлял 6,0 лет, для 2021 г. - равен 13,1 годам. Эффективная эксплуатация соответствует периоду 6,9 лет. Установка относительно российских и зарубежных производителей по затратам занимает среднее положение. При стоимости электроэнергии на уровне европейского рынка (2021 г.) срок окупаемости составляет 1,4 года. The issue of energy supply of buildings and structures in areas with poorly developed engineering infrastructure and decentralized systems can be partially solved by the use of solar heat supply systems (or hot water supply). Such systems (reliable, safe, simple and low-cost in operation) reduce the consumption of traditional energy resources and the emission of harmful emissions into the atmosphere. The possibility of mass implementation of solar plants was largely constrained by cost indicators that determined the payback period. The annual rise in prices for traditional organic fuels, the ability to manufacture solar collectors with their own strength and means can increase their attractiveness. The work assessed the profitability of the solar hot water supply system of a hotel, located in the village of Babyakovo, Voronezh Region, for two time periods (2005 and 2021), taking into account the increase in the cost of electricity, which is the main traditional energy source. The solar collectors were produced in-house. The introduction of a solar plant for the needs of hot water supply in the traditional heating system of the hotel can reduce electric energy consumption by 44 %. The paper shows that the increase in the price of electricity for the period from 2005 to 2021 did not compensate for the increase in the cost of materials for the manufacture of solar collectors. At the same time, the payback period for 2005 was 6,0 years, for 2021 was equal to 13,1 years. Efficient operation of the plants covers a period of 6,9 years. The installation of Russian and foreign manufacturers in terms of costs occupies an average position. With the cost of electricity at the level of the European market (2021) the payback period is 1,4 years.

scholarly journals COST-DEPENDENT ELECTRIC CONSUMPTION AS A TOOL OF RISK MANAGEMENT OF NON-PAYMENT FOR ELECTRIC ENERGY OF INDUSTRIAL ENTERPRISES

2019 ◽  
pp. 08-19
Author(s):  
A. P. Dzyuba ◽  
I, A. Soloveva
Keyword(s):  
Power Consumption ◽  
Electricity Markets ◽  
Economic Effect ◽  
Electric Energy ◽  
Electricity Consumption ◽  
Machine Building ◽  
Industrial Equipment ◽  
Cost Of Electricity ◽  
Industrial Enterprises ◽  
The Cost

The growth of indebtedness of industrial enterprises operating in conditions of economic instability for consumed electricity and the sanctions imposed by the energy supplying organizations for late payments, determine the urgency of the problem of managing the risks of non-payment for energy from industrial enterprises. The article is devoted to the description of the method developed by the authors for managing the risks of non-payment of industrial enterprises for consumed electricity, based on the principles of price-dependent electricity consumption. Based on the study of the mechanism of formation of the cost of electricity purchased by industrial enterprises in the wholesale and retail electricity markets, special methods were proposed to control each component of the cost of electricity: electrical energy, electrical power, electricity transmission services. It justifies the need to develop options for operating modes of industrial equipment, such as nominal load mode, load limiting mode, technological minimum load, in order to effectively implement and use price-dependent power consumption in crisis conditions.Modeling scenarios of price-dependent demand management for power consumption is made on the example of a machine-building enterprise and the calculation and component-wise analysis of the economic effect of price-dependent management and the factors influencing its formation are carried out. The developed method allows you to effectively manage the risks of non-payment of industrial enterprises for electricity, as well as minimize the risks of restricting the supply of electricity to industrial facilities and disruptions in the operation of industrial equipment.

Assessment of the economic efficiency of renewable energy sources in the Khabarovsk territory

2021 ◽  
Vol 94 (1) ◽  
pp. 219-227
Author(s):  
S. G. Pankratyeva ◽  
Keyword(s):  
Renewable Energy ◽  
Economic Efficiency ◽  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Full Cost ◽  
Cost Of Electricity ◽  
Environmental Component ◽  
The Cost

The study presents a brief description and problems of power supply of the Khabarovsk territory. The problems and prospects of the development of renewable energy sources, in particular in the Khabarovsk territory, are considered. There are three main approaches that exist in the scientific community for comparing energy objects. The first approach is based on comparing the technical indicators of power facilities, the second on calculating the normalized cost of electricity, and the third is based on monetizing the environmental and climatic consequences of power facilities. During the study, it was found that these approaches differ in the number of indicators included in the calculation of the cost of electricity. In accordance with the selected approaches, evaluation of economic efficiency of three operating power plants of the Khabarovsk territory – coal, diesel and solar – was carried out, monetized estimates of the full cost of three alternatives for the production of electricity in the region were given, taking into account the environmental component. The analysis made it possible to conclude that under the current market conditions, renewable energy sources are most profitable in decentralized areas, and quantitative evaluations have shown that with the introduction of payments for carbon monoxide emissions, renewable energy sources become an economically effective way of organizing energy supply in the region, including in the regions with centralized power supply.

Improving the Power Quality of Rural Consumers by Means of Electricity Cost Adjustment

2019 ◽  
pp. 312-341 ◽  
Author(s):  
Alexander Vinogradov ◽  
Maxim Borodin ◽  
Vadim Bolshev ◽  
Natalya Makhiyanova ◽  
Nadezhda Hruntovich
Keyword(s):  
Electric Power ◽  
Power Quality ◽  
Quality Indicators ◽  
Electric Energy ◽  
Distribution Functions ◽  
Power Cost ◽  
Cost Of Electricity ◽  
Standard Values ◽  
The Cost

Improving power quality of agricultural consumers by adjusting the cost of electricity is considered. The chapter lists the reasons for the output of power quality indicators beyond the standard values. There is the assessment of the quality of electricity in the Orel region. Distribution functions for distortion of power quality indicators are constructed. The relevance of the adjustment of the cost of electricity depending on its quality is justified. The mathematical model for determining the cost of consumed electric energy depending on its quality is developed in chapter. The chapter gives the method allowing to adjust the cost of consumed electric energy depending on its quality and source of distortion. In the chapter, there is the mechanism of carrying out calculations for the consumed and transferred electric power considering change of electric power cost depending on its quality. The feasibility study of the proposed methods and means of improving power quality is realized.

scholarly journals NEW COMPOSITION AND METHOD FOR PRODUCING PASTA

2020 ◽  
pp. 69-73
Keyword(s):  
Vegetable Oil ◽  
Economic Efficiency ◽  
Nutritional Value ◽  
Microwave Drying ◽  
Drying Process ◽  
High Quality ◽  
Technological Processes ◽  
Innovative Methods

The main objective of this study is to develop a composition of pasta containing a mixture of ginger, lemon and mint powder, as well as a combination of legumes and cereals with high nutritional value. This will expand the range of pasta. The problem of achieving high quality and economic efficiency is solved by improving several technological processes and using innovative methods. The effectiveness of using innovative methods of sublimation and microwave drying is shown in comparison with the drying process of instant pasta by frying it in vegetable oil.

scholarly journals ECONOMIC EFFICIENCY OF THE ACTIVITY OF TOURIST SERVICE SPHERE ENTERPRISES

2021 ◽  
Author(s):  
Svitlana Tymchuk
Keyword(s):  
Economic Efficiency ◽  
Practical Importance ◽  
Third Party ◽  
Travel Agents ◽  
Party Organizations ◽  
Transport Services ◽  
Accommodation Sector ◽  
Main Components ◽  
The Cost ◽  
Tourist Service

The main purpose of the article is a comprehensive study of issues related to the analysis of the main components and the development of measures to ensure the economic efficiency of enterprises in the field of tourist services in modern conditions. Systematization of literature sources and approaches to solving the problem showed that the service of tourists during the trip involves various companies and organizations in the field of service. The object of the study are selected enterprises in the field of tourist services. The study period is 2015-2019. The study of the economic efficiency of service enterprises showed that in recent years there has been an increase in the number of tourists who were served by tour operators and travel agents in Ukraine 2.6 times, of which inbound tourists ‒ 5.5 times, outbound tourists ‒ 2.9 , and domestic tourists ‒ 1.3 times. The cost of sold tourist vouchers also increased (3.5 times). The study empirically confirms and theoretically proves that the main executor that ensures the implementation of the stages of accommodation and service in the hotel guest cycle, is the accommodation sector. Its representatives are also involved in the organization of leisure tourists. The number of persons in collective accommodation facilities increased 1.2 times in 2015-2019. Meeting the needs and demand for tourism implies the need to provide a large number of tourist services. Significant growth in terms of all costs incurred by tourism entities for the services of third-party organizations used in the production of tourism products. In the structure of the studied costs, the largest share is occupied by accommodation and accommodation costs ‒ 25.7%, transport services ‒ 26.9%. Thus, the analysis of economic efficiency of enterprises in the field of tourist services is of practical importance. According to its results, you can not only assess the efficiency of the enterprise, analyze the total effect of its structural units and activities, but also identify promising areas of development of the industry and the results of the resourses use. The analysis indicates a gradual increase in most of the studied indicators that characterize the work of enterprises in the field of tourist services. In the future, to successfully overcome the crisis, it is necessary to develop integration forms of enterprises in the hospitality industry and tourist services

HYDROPONICS IS A NEW PARADIGM AND A WAY OF FODDER PRODUCTION INTENSIFICATION

2020 ◽  
Author(s):  
Vladimir Popov
Keyword(s):  
Economic Efficiency ◽  
General Concept ◽  
New Paradigm ◽  
High Quality ◽  
Organic Product ◽  
Know How ◽  
Green Mass ◽  
Fodder Production ◽  
Adequate Quantity

Hydroponics is a way of intensification and a new paradigm of fodder production: from adaptive plant growing to operated cultivation of green mass of the set property. In a review the precondition of introduction of the alternative high-quality green foods "know-how" in completely controllable conditions are presented. Terms and definitions of the general concept and separate parts of hydroponic forage are given. Hydroponics makes for every day providing animals with the adequate quantity of high-quality forage. The hydroponics of forages allows to cultivate ecologically pure and organic product commercially, within economically defensible expenses. The synergy is shown and examples of zootechnical and economic efficiency are resulted.

PROMOTING THE NATURAL RESTORATION OF LIPNYAKS OF THE KASMARSKY DISTRICT FORESTRY OF THE ZIANCHURINSKY FORESTRY

2020 ◽  
Vol 37 (3) ◽  
pp. 76-82
Author(s):  
L.V. Mazitova ◽  
Keyword(s):  
Economic Efficiency ◽  
Natural Regeneration ◽  
Forest Area ◽  
Natural Restoration ◽  
The Creation ◽  
The Cost

The article presents the results of studying various measures to promote the natural renewal of lime forests in the Kasmarsky uchastkovoye forestry of the Zianchurinsky forestry. The data on lime forests within the boundaries of the forestry were studied, and the calculation of the economic efficiency of promoting natural regeneration was carried out. The use of evenly-gradual and continuous narrow-cut logging in the conditions of the Zianchurinsky forest area in the Kasmar district forest area will avoid the creation of expensive forest crops. The cost of creating forest crops is 10,719. 4 rubles per 1 ha, and the cost of preserving and caring for the forest during evenly-gradual logging is 4,237. 9 rubles, and solid narrow-cutting-3,469. 33 rubles.

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