Plant Boiler Research Articles

COMPARATIVE ANALYSIS OF EXERGETIC EFFICIENCY OF HEAT RECOVERY SYSTEMS OF BOILER PLANTS

The paper presents the results of a comparative analysis of the exergetic efficiency of heat recovery systems of boiler plants. The need to ensure the efficient operation of heat recovery systems for various purposes determines the importance and relevance of research conducted in this field. The purpose of the work is to increase the exergetic efficiency of heat recovery systems of various purposes. The results of solving the tasks necessary to achieve the set goal are given: - submit heat utilization systems of various purposes in the form of structural diagrams with the identification of exergetic flows of heat carriers; - choose exergetic efficiency evaluation criteria for heat recovery systems of various purposes, calculate their values and conduct a comparative analysis; - develop recommendations for the use of heat recovery systems for various purposes, taking into account the specifics of their application. For research, a complex methodology was used, which combines structural-variant methods of exergetic analysis with methods of presenting exergetic balances in matrix form. Three types of heat recovery systems with different numbers of consumers of recovered heat were considered. Structural diagrams of heat recovery systems of various purposes with identification of exergetic flows of heat carriers between individual discrete elements have been developed. Exergetic losses, thermal exergetic criterion and exergetic efficiency were selected as criteria for evaluating exergetic efficiency. Their values were obtained for heat recovery systems and their elements at different values of the relative power of the boiler. The largest exergy losses occur in the water-heating heat exchanger, smoke extractor and pumping system, the smallest - in the air-heating heat exchanger and gas heater. An increase in the relative power of the boiler leads to an increase in the relative contribution of the exergy losses of the water heating heat recovery system, as well as the pumping system and the pipeline system to the total exergy losses in the heat recovery system. It has been established that increasing the number of consumers of recovered heat in the heat recovery system and using rational ways of reducing total exergy losses increases the efficiency of heat recovery systems. Further developments in this field will allow to increase the exergetic efficiency of heat recovery systems for various purposes.

CLASSIFICATION OF LOCAL EXERGETIC LOSSES IN HEAT RECOVERY SYSTEMS OF DIFFERENT TYPES

The results of classification and analysis of local exergy losses in heat recovery systems of various types are presented. The combined heat recovery system of a boiler plant, designed for heating water and blast air, as well as heat recovery systems with anti-corrosion methods for protecting gas exhaust tracts, are considered. On the examples of these systems, a classification of local exergy losses was carried out and their type and place in heat recovery systems were established. For research, a complex methodology was used, combining structural-variant methods of exergy analysis with methods for presenting exergy balances in matrix form. Structural diagrams of heat recovery systems are presented and exergy equations are obtained for calculating exergy losses in places of localization. For a combined heat recovery system, a comparative analysis of local exergy losses was carried out. It has been established that the smallest exergy losses are observed in the hot air heat exchanger and in the gas heater. The total contribution to the total exergy losses of the pumping system and the piping system is quite significant for all boiler power values. With an increase in boiler power from 30 to 70% of the installed power, there is a slight increase in exergy losses in the heat recovery system and in the hot water heat recovery unit. In this section, the main exergy losses are in the pumping system and in the pipeline system. With a further increase in the power of the boiler, the exergy losses in the heat recovery system and in the hot water heat recovery unit begin to increase more significantly. In this case, the main exergy losses fall on the hot water heat exchanger. It is concluded that the optimal mode of operation of the installation is carried out at the boiler power, which is 50 ... 60% of its installed power.

Condition monitoring and reliability assessment, an essential tool for Boiler Plant Maintenance - A review

Condition monitoring is an essential technique which is usually deployed to monitor the health parameters and conditions of a boiler plant in such a way that variations or significant changes can like failure can be identified and proffer adequate solutions to it. It is an important aspect of condition-based maintenance which is used in maintaining an equipment according to its conditions. Thus, this study focused on the fundamental principles of condition monitoring which involve the identification and selection of a physical measurement that will show the deterioration stage and the importance of taking the readings at intervals. More so, the study established that monitoring and measurement should focus more at critical components that have high frequency of failure. Thus, condition-based maintenance of boilers will help in improving the ,availability of the boiler.

About the Effect on the Environmental Efficiency of the Centralized Heat Supply Systems

The global production created by the mankind has an intensively increasing harmful effect on the environment. As a result, we are facing the problem of the saving of natural environment and now the global community tries to find solution for this environmental problem. The power generation sector is the most environmentally aggressive of all industry branches. Technical power engineering facilities differ by a high degree of complexity making it difficult to increase the level of their environmental friendliness. In particular, centralized heat supply systems are rather complicated and responsible components of the power engineering industry. These differ by a high level of environmental aggressiveness. Hence, these need to increase a degree of their environmental friendliness. The purpose of this research was to analyze the condition of the interaction of the power generating sector with the natural environment and search for harmonization solutions of available contradictions of such an interaction. An increase of the environmental friendliness of the worn-out power equipment used by centralized heat supply systems is a topical problem. The purpose of this scientific paper was to suggest a solution for the problem of the environmental interaction of the centralized heat supply systems with natural environment using an approach of their partial renewal. The most environmentally aggressive elements of these systems are the boiler plants that emit heat and harmful substances into the environment. Domestic boiler plants have completely been worn-out. Therefore, the development of the domestic boiler building industry is of vital importance. It will enable the production of modern boiler plants instead of worn-out boiler systems. This process is impeded at the moment by the insufficiency of available resources. Contemporary requirements to the technological level of the functioning efficiency of the centralized heat-supply systems are rather high, especially as for its environmental component. Available centralized heat-supply systems have low efficiency due to a high wear-out level of their elements on the whole. There is an urgent need for an increase in the efficiency of these systems. One of the available ways of such an increase in the efficiency is a partial renewal of the equipment. The program of the partial renewal of available boiler plants allows us to provide an appropriate increase in the environmental friendliness of the worn-out equipment used by centralized heat-supply systems. The coverage of the entire fleet of the equipment available for the centralized heat-supply systems by this partial renewal program will allow for an increase in the level of its ecological friendliness on the whole.

Using the heat of deaerator flash steam for additional heating of return system water in boiler installations

Reliable and economical operation of the equipment of thermal heat supply systems and boiler installations is an important and challenging task. High-quality water treatment directly affects the efficiency of boiler installations. The main stages of water treatment at thermal power plants are pretreatment, desalination and thermal deaeration — removal of aggressive gases that lead to corrosion of equipment. Currently, there are a significant number of manufacturing enterprises that are equipped with their own boiler plants. In boiler houses used for steam generation, as well as heating boilers serving heating system, water deaeration is a mandatory process. The article is dedicated to the development of a technology to make the boiler installations more economical and efficient due to additional heating of the return system water with deaerator flash steam. In this paper, the process of water deaeration is considered on the example of the boiler room of the AB InBev Efes brewery in Ulyanovsk, where the heating station is equipped with automation systems, and the regulation of steam supply for heating is carried out automatically depending on the temperature of the return system water. Due to the designed arrangement and depending on the amount of flash steam of the atmospheric deaerator, the return water of the heating system can be heated by 3 - 10°C. Besides, during periods of warm winters at the Ulyanovsk-based brewery of AB InBev Efes, with minimal loads of the boiler plant, heating of the return system water in the heat exchanger with the flash steam of the atmospheric deaerator may be used as the main or additional stage of heating.

Heat Supply Reform: Implications for Consumers in the Far East

ABSTRACt As new legislation concerning the heat supply is put into effect, this article considers its possible consequences for the population of the Far East, which is one of the main consumers of heat supply services in Russia. The article shows that as recipients of this service, Far East residents are limited in their ability to manage the volumes of their consumption. By considering individual Far East regions and cities, we estimate the ability of the population to pay for heat supply services. Despite the regulation of heat tariffs, the burden on Far East residents remains higher than in the rest of country due to higher regional rates and consumption volumes. As the new method of the so-called “alternative boiler plant” is put into effect, a new regulated heat tariff will be introduced in the Far East, which will result in an increase in payments by 1.7–3.1 times. This will inevitably raise the debt risk of enterprises and require the government to spend more money on social welfare support.

Heat Supply in Russia: Current Situation and Problems of Investment Development

ABSTRACT This article gives a qualitative and quantitative characterization of the current state of Russia’s heat supply system and analyzes its heat networks, pricing system, three-tiered management structure, and production capacities (the share of cogeneration and the structure of the industry according to type of heat producer). Two investment mechanisms to modernize the centralized heat supply systems are considered: concession agreements and the introduction of price zones based on the “alternative boiler plant” method. The article considers how the production and consumption of thermal energy can be balanced in the system and includes an estimate of the industry’s fuel consumption and financial balance. Changes in the patterns of heat consumption and production within the district heating system are presented. The article concludes by considering the set of problems that must be solved to avoid serious problems in the future.

The Supply of Heat to Consumers Under Market Conditions: Current State and Developmental Trends

ABSTRACT The article discusses several models and methods for managing the supply of heat to consumers inside a market economy. The main organizational forms of heating systems are described via the models of a “unified heat supply organization” and a “single buyer,” which can be implemented in the population centers of the Russian Federation. We offer an analysis of various types of competition in the thermal energy market and describe the effects that can be achieved when they are implemented. Based on the example of Russia’s large district heating systems, we show the negative consequences resulting from the introduction of the “alternative boiler plant” method, which is a new target model for the Russian thermal energy market.

The Alternative Boiler Plant as a Mechanism for Solving Existing Heat Supply Problems

ABSTRACT As part of the long tradition of EKO, we try to supplement the work of academic researchers with that of experts working in the field. This set of articles concerns the challenges facing the Russian heat supply system. We have asked S.V. Bukharov, a representative of the energy sector, to take part in the discussion. S.V. Bukharov has more than 15 years of experience in the financial and economic management of the energy sector (including with the Novosibirskenergo group, OJSC TGK-13, and the Association NP Market Council et al.). As a consultant, S.V. Bukharov has helped prepare materials for an appeal to the Russian government to classify the urban-type settlement of Linyovo (Iskitimsky District, Novosibirsk Oblast) as a heat supply price zone. This article describes the possible effects for the industry and consumers resulting from the transition to the “alternative boiler plant” model, including a description of the mechanisms for equalizing the price effects for consumers after the transition. S.V. Bukharov concludes by providing an assessment of the applicability of the new alternative boiler plant method.

Application of hydrant piping system design in boiler plants for fire safety systems in paper producing companies

As one of the important components, hydrants must be present in the boiler plant, whose function is to extinguish the fire in the event of a fire incident in the area. The working principle of the hydrant system is that when an event of fire occurs, the suction pump will take water from the ground reservoir, later on the water will flow into the pipe leading to the pillar hydrant, and the fire hose will be disconnected from the pillar hydrant to extinguish the burning area. The issue needs to be solved in this research is to design a hydrant piping system in the boiler area of PT Mekabox Internasional that meets the standards used by the industries. The purpose of designing this hydrant piping system is to find out how much flow is in the hydrant if the boiler plant area has an area of 2016 m2, how thick the pipe should be, and how many pillar hydrants are necessary. The scope of the research discussion includes hydrant piping systems, hydrant piping calculations, and standards used in hydrant piping systems. The results of the calculation and data processing of this hydrant system design are; the number of pillar hydrants needed in an area of 2016 m2 is 2 pillar hydrants, the required water discharge is 432 m3 with the assumption that the blackout time is 2 hours, and the pipe diameter required is 6 inches and must have a pipe thickness of 6 mm. The results of the hydrant piping system design on the boiler plant can be applied directly to the company.

Disposal of Wastewater from Mazout-Fired Boiler Plants by Burning Water–Mazout Emulsions

Liquid fuel can be an alternative to solid fuel in non-gasified locations. The mazout for municipal-energy boiler plants is much cheaper than fuel oil. However, this relates to the problem of wastewater disposal from such a boiler plant. A proprietary system for the disposal of bottom water and other sewage-containing mazout has been developed. The solution depends on the proper preparation and burning of a water–mazout emulsion (WME). The emulsion is prepared in a specially designed and developed dosing ejector. By burning the emulsion using the developed system, an efficiency increase of 2–3% was achieved for boilers operating on the mazout fuel. Such a result was achieved due to a reduction in the excess air factor. Moreover, emissions of nitrogen oxides and carbon monoxide were reduced by 30–35% and 70–80%, respectively. In addition due to cleaning the heat-exchange surfaces obtained when working on the WME, the amount of time for productive and more efficient use of the equipment has increased.

Life cycle assessment of coconut oil product

The objective of this study was to analyse the life cycle of the coconut oil industry and process improvement alternatives. The life cycle analysis (LCA) method are based on the scope of the gate to gate. This study shows that the input for coconut oil production consists of copra as the main raw material and several supporting materials and energy. The outputs are coconut oil, coconut pulp pellets, and waste (liquid, solid, and gas). The total potential GHG emissions, acidification, and eutrophication per-kg-coconut-oil-products are 2.9271 kg-CO2 eq, 0.0178 kg-SO2-eq, and 0.0145 kg-PO4-3-eq. The highest GHG emissions produced from the Crude Coconut Oil Plant sub-system was 1.2045 kg-CO2eq per-kg-coconut-oil. The acidification potential produced from the Boiler Plant and Transportation sub-system with the potential value was 0.0094 kg-SO2-eq and 0.0084 kg-SO2-eq per-kg-coconut-oil, respectively. The eutrophication potential produced from the Boiler Plant and Transportation sub-system with a potential value was 0.0026 kg-PO4-3-eq and 0.0119 kg PO4-3-eq pe- kg-coconut-oil, respectively. Optimization of energy usage can be done by optimizing fuel, water, and electricity in each sub-system of coconut oil production. The NEV and NER values result in 40,998,456 MJ and 1.0971, respectively.

Reuse of low sulfur oil residues as a base for boiler and marine fuel

THE PURPOSE. A complex of various physico-chemical methods has been studied to explore the possibilities of reuse of oil residues (oil sludge) of low-sulfur high-paraffin oil deposits of the Mangyshlak peninsula (Kazakhstan) as a promising raw material for boiler and marine fuel with improved operational and environmental characteristics.METHODS. Determination of the conditional viscosity of oil sludge (in degrees Engler, ° E) was carried out using an Engler viscometer VU-M-PCP according to GOST 6258-85 «Petroleum products. The method of determining the conditional viscosity». Studies of the lowest working heat of combustion of oil sludge were carried out using an adiabatic bomb calorimeter ABK-1B (Russia) according to GOST 21261-91 "Petroleum products. Method for determining the highest heat of combustion and calculation of the lowest heat of combustion". Determination of the mass fraction of sulfur in the studied oil sludge was also carried out using an adiabatic bomb calorimeter ABK-1B (Russia) according to GOST 3877-88 «Petroleum products. Method of determination of sulfur by burning in a calorimetric bomb». To analyze the results obtained, data obtained using the nuclear magnetic resonance method were used. Proton NMR spectra were recorded on a Bruker AVANCE III NMR spectrometer operating at a frequency of 600.13 MHz for 1H and equipped with a highresolution inverse sensor for three cores (TXI, 5 mm). Data processing and analysis were performed using Bruker Topspin 3.6.1.RESULTS. It is shown that in terms of heat of combustion and viscosity properties at temperatures above 50 oC, this oil sludge is similar to boiler fuel oil M100. It was found that the use of carbonate sludge of chemical water treatment at a concentration of 0.1 wt. % allows you to further reduce the viscosity by 5-6% and reduce the sulfur content in the combustion products, without reducing the lower working heat of combustion of the oil product. The complex nature of the relationship between the width of NMR lines and viscous properties has been revealed, which may indicate the existence of associates of highmolecular paraffins even in slightly viscous liquid petroleum products. The nature and characteristic sizes of the resulting associates are discussed. It is shown that the addition of medium-distillate diesel fractions will make it possible to obtain a better fuel option for marine engines, gas turbine and boiler installations with a reduced amount of resinous-asphaltene substances, reduced viscosity values and solidification temperatures, high heat of combustion and low sulfur content.СONCLUSION. The conducted complex of physico-chemical studies has shown the possibility of using low-sulfur Mangyshlak oil sludge as a basis for obtaining fuel for marine engines, gas turbine and boiler plants, steam boilers and industrial furnaces.

Robustness of district heating versus electricity-driven energy system at district level: A multi-objective optimization study

This article compares the robustness of the optimal choice of technologies for two Smart Energy Systems architectures at district level, illustrated by a case study representative of a newly built district in Grenoble, France. The electricity-driven architecture relies on the national electric grid, decentralized photovoltaic panels and decentralized heat pumps for heat production building by building. The alternative architecture consists of a district heating network with multiple sources and equipment for centralized production of heat. Those are a gas boiler plant, a biomass-driven cogeneration plant, a solar thermal collector field, and a geothermal heat pumping plant (grid-driven or photovoltaics-driven). Electric and heat storages are considered in both architectures. The sizing and operation of both architectures are optimized via linear programming, through a multi-objective approach (total project cost versus carbon dioxide emissions). Both architectures are compared at nominal scenario and at sensitivity scenarios. It is concluded that the electricity-driven architecture is less robust, especially to uncertainties in space heating demands (+150%/−30% impact on costs) and in heat pump performance (+35%/−15% in costs). Meanwhile, the multi-source architecture is less sensitive to space heating demands (+110%/−30%) and has negligible sensitivity to the rest of parameters except photovoltaic panels efficiency (+14%/−7%).

Impact assessment of emissions from energy facilities on the Baikal natural area

This work aims to establish a technology for conducting a comprehensive assessment of the impact of energy facilities on the environment. The proposed strategy combines regulatory methods for calculating pollutant emissions and dispersion, as well as the laboratory findings on pollutant content in snow samples. To assist the technology, a scientific prototype of an intelligent decision-making support system known as WIAIS (Web-oriented Impact Assessment Information System) was developed. The proposed technology includes three principal stages: calculating the quantitative indicators of pollutant emissions, calculating the pollutant dispersion in the atmosphere, examining snow samples for the pollutant content and comparing them with the obtained results. For practical evaluation of the proposed technology, a computational experiment was performed, which assessed the impact of emissions from the boiler plants located in the Baikal natural area and powered by different types of coal. The testing was performed using the data on 48 boiler plants of various installed capacities having different equipment and located all over the Baikal nature area. Data on the main pollutants emitted by energy facilities (sulfates, nitrogen oxides, solids) were obtained. Quantitative indicators of pollutant emissions were established; thus, the total volume of pollutants amounts to 18.33 thousand tons/year. Furthermore, the largest sources of pollutants were identified, including boiler plants in Slyudyanka, Elantsy settlement, Severobaikalsk, and Nizhneangarsk settlement. Therefore, the proposed methodology can be used for environmental assessments of the existing power plants, as well as for designing new power facilities and developing recommendations for reducing pollutant emissions.

Experimental studies of the combustion of pulverized coal to form the basis for training a neural network

In this paper, we considered the solution to the problem of efficient and environmentally friendly combustion of hydrocarbon-containing fuels and the prevention of emergencies in combustion chambers and boiler plants. On the basis of the existing scientific background and the existing instrumental and experimental base, modern technologies for automating the combustion process using machine learning methods have been developed. Automation will reduce energy costs and prevent possible emergencies at thermal power plants and combustion chambers. The approbation of the technology and the formation of a data corpus for training the network was carried out using semi-industrial fire installations with a thermal power of about 5 MW, which make it possible to vary the parameters of fuel combustion in a wide range and, accordingly, to implement various combustion modes.

New ecology safe waste-to-energy technology of liquid fuel combustion with superheated steam

The huge amounts of accumulated unclaimed liquid hydrocarbon waste (waste from oil production and oil refining, etc.) determine the prospects for their involvement in energy production. The Waste-to-Energy technology improves economic efficiency through low energy costs. Efficient use of waste for energy production requires the creation of new technologies with high energy efficiency and low emissions. The paper proposes and substantiates a promising new environmentally friendly Waste-to-Energy method of burning liquid fuel with injection of superheated steam (SIM) to the combustion zone. The authors have developed a new burner to combust liquid waste when producing energy (protected by patents of the Russian Federation), in which the fuel is atomized by a jet of superheated steam. This approach provides efficient fuel dispersion, the ability to burn a wide range of waste, high fuel combustion efficiency, long service life due to the absence of fuel injectors, and reduction of toxic combustion products due to steam. The large-scale introduction of new burners based on the SIM combustion technology requires reliable scientific data and pilot test results. First of all, this is the influence of operating parameters (steam flow rate and temperature, fuel and air flow rates) on the combustion performance in the oil-steam burner being developed. The aim of the work is complex laboratory and experimental studies of the characteristics of fuel combustion in a new burner with a controlled excess air ratio. Forced air supply to the combustion chamber of a steam-oil burner is a novelty of the burner under study. Based on the results of laboratory studies, the optimal ratios of operating parameters were found (fuel, steam and air flow rates: 1:0.8:2.75), which provide the best thermal and environmental performance (NOx<35 ppm, CO < 25 ppm). A significant reduction in the content of nitrogen oxides in the flue gases up to 70% was achieved with a high completeness of fuel combustion due to the joint control of steam concentration and excess factor in the gas generation chamber. This claims the proposed burner as a low emission one. To confirm the achieved effect, in this work, for the first time, experimental tests of the burner were carried out under the operating conditions of a low-power boiler plant (10–40 kW). Successful tests prove the efficiency of using the developed burner for solving the problem of efficient and environmentally friendly combustion of fuel (including liquid combustible waste) for the production of thermal energy at small-scale energy facilities.

OPTIMIZATION OF THE TECHNOLOGICAL PARAMETERS OF THE HEAT RECOVERY SYSTEM OF A BOILER PLANT WITH THE AIR PROTECTION METHOD OF GAS WATER TRACTS

The results of a study of the efficiency and optimization of technological parameters of the heat recovery system of a boiler plant, in which the method of mixing part of the heated air into the flue gases after the heat recovery unit, is implemented. The essence of the air method is to increase the temperature and decrease the relative humidity of the resulting mixture, which reduces the amount of condensate on the walls of the exhaust ducts. A gas-consuming boiler plant with a heat recovery system for heating heat supply water is considered. To optimize the technological parameters of the system in the implementation of this method, a complex technique based on exergy analysis was used. The technique combines structural-variant methods and balance integral methods of exergy analysis. This allows you to determine the exergy, heat engineering and technological characteristics that are included in the criteria for evaluating the efficiency of heat recovery systems. Due to the small number of parameters required for the calculation, and the simplicity of the calculation and analytical methods for obtaining exergy characteristics, the technique is convenient for research. The accuracy of the results obtained is 0.3-0.5%. A block diagram of a boiler plant with a heat recovery system in the implementation of the mixing method is given. In the block diagram, input and output excretory flows between individual elements are identified. The criteria for evaluating the efficiency of heat recovery and the main technological optimization parameters have been selected. Based on the general system of exergy, thermal and material balance equations in accordance with the structural scheme, an exergy balance equation was compiled, from which exergy losses and heat-exergy efficiency criteria were determined. The optimal values in the heat exchanger heat output and the amount of mixed air, which correspond to the high efficiency of the system, are determined.

IMPROVING THE ENVIRONMENTAL SAFETY OF BOILER PLANTS CHIMNEYS

The study results of heat engineering and environmental indicators of emissions from chimneys of gas-consuming heating boiler plants equipped with systems for deep heat recovery of exhaust gas are presented. The issues of the application heat methods efficiency to prevent condensate formation in these pipes to improve the environmental safety of chimneys when using heat-recovery technologies are considered. Methods such as partial bypassing of boiler exhaust gases past heat-recovery equipment, drying of the exhaust gases cooled after heat-recovery in heat exchangers-gas heaters and mixing dry and heated air from the boiler house air heater into the cooled gases have been studied. The effectiveness of using these methods to improve the dispersion conditions in the environment of harmful emissions contained in the flue gases of gas-consuming boilers has been analyzed. The relative decrease in the maximum surface concentration of such harmful emissions as nitrogen and carbon oxides due to the use of specified heat methods in heat-recovery systems has been determined. Comparison of efficiency indicators of the proposed methods and their ranking to improve the conditions for the dispersion of harmful emissions by chimneys of various types is carried out. It is shown that the proposed methods, usually used for corrosion protection of boiler plants chimneys using heat-recovery technologies with deep cooling of exhaust gases, also contribute to improving (up to 32 %) of the environmental friendliness of these pipes. The ranking of the considered heat methods is carried out.

Пути улучшения экологических показателей мегаполисов за счет использования СПГ в качестве резервного топлива

Large thermal power plants (TPP) located within the boundaries of urban areas usually use diesel or black oil as a reserve fuel (RF). In some cases, coal is also used. That has a negative impact on the natural environment of the city. In accordance with this, the new procedure for the creation and use of fuel reserves by thermal power plants provides as an option the use of liquefied natural gas (LNG) as a reserve and emergency fuel. Replacing RF (reserve fuel) with natural gas will, to some extent, reduce the load on the environment and reduce the area occupied by reserve fuel facilities (RFF). Since the construction and maintenance of RFFs at boiler plants and thermal power plants (TPP) requires significant capital investments and operating costs, the transition to LNG, which has its own specifics, requires additional analysis, given in this article, which evaluates the requirements for LNG volumes, places of production, storage and delivery of LNG to the TPP. The potential benefits of RF's transition to LNG have been assessed and challenges requiring further research have been formulated.