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Journal articles on the topic 'Boiler units'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Wang, Jiasheng, Jingliang Zhong, and Xiaolong Gou. "Control strategy study on frequency and peak-load regulation of coal-fired power plant based on boiler heat storage capacity." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 232, no. 8 (2018): 1063–78. http://dx.doi.org/10.1177/0957650918764155.

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Nowadays, quantity of coal-fired power plant and its single unit capacity are greatly improved in China, and power grid’s frequency and peak-load regulation range become wider. Based on the basic regulation theory and unit’s characteristics, this paper indicates the limitations of unit’s original control strategies and such limitations have produced great damages to coal-fired boilers through assessment of 2 years statistical data of boiler tube explosion in regional power grid. Under field tests, the quantified boiler heat storage capacity of six typical thermal power units in the power grid

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2

Gil, Andrey V., Alexander S. Zavorin, Elena S. Vorontsova, and Gavriil A. Nizkodubov. "Application of Numerical Analysis for Physical and Chemical Combustion Processes in Design of Boiler Units." Applied Mechanics and Materials 770 (June 2015): 365–70. http://dx.doi.org/10.4028/www.scientific.net/amm.770.365.

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It is common knowledge that theoretical approaches do not allow conducting the objective assessment of the reliability and efficiency of the boiler equipment operation, hence, application of numerical approaches is introduced in the paper. There is the urgent need to assess reliability and efficient operation of boilers at the design stage. The analysis of the temperature level, gas dynamics in the combustion chamber of the boiler and the conclusion about the reliability and efficiency of the designed boiler operation are based on the numerical research.

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3

Belov, Alexander, Dmitry Shaforost, and Viktor Chebotarev. "Mathematical Models for Assessing the Thermal Engineering Reliability of Boiler Units of Power Complexes." Известия высших учебных заведений. Электромеханика 64, no. 6 (2021): 88–93. http://dx.doi.org/10.17213/0136-3360-2021-6-88-93.

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The analysis is carried out and the definitions of the concept of thermal engineering reliability, the determining parameter and the determining function of boiler units, are given. A classification has been developed for the determining parameters of steam and hot water boilers by level in the chain of cause-and-effect relationships in the event of a thermal failure. It is proposed to divide the determining parameters and functions of boilers according to their spatial localization into integral and local. A lot of models for defining functions with different mathematical properties (for exam

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4

Zhao, Bin, Jun Hao Li, Jing Quan Shen, and Guo Zhong Wang. "The Analysis on Circulating Fluidized Bed Boiler Heat Tube Failure." Advanced Materials Research 291-294 (July 2011): 1679–84. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.1679.

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Boiler heat tube failure is a long-term technical problem plaguing the production of electricity. The research on how to prevent failure of boiler heat tubes has practical significance. In this paper, select the type of the Tangshan Dong fang power plant SG-490/13.8-M572 CFB boiler as the research object, part by pressure, failure type, and run-time statistics on the heat tubes failure of two boilers throught the collation and analysis on records, the basic rules of the failure are found out, statistics show that the water wall and super heater tubes explosion causes boiler shutdown time accou

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5

Fuller, Jack, and Yang Guo. "Update and Analysis of Current Boiler Operations Used for the Generation of Steam Heat and Electricity." Energy and Environment Research 7, no. 1 (2017): 23. http://dx.doi.org/10.5539/eer.v7n1p23.

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According to the U.S, Environmental Protection Agency (EPA), the number of boilers in the U.S. devoted to the production of steam, electricity, and heat is approximately 1.5 million. This study analyzes boilers burning natural gas, coal, wood, oil, or other fuels to recover thermal energy in the form of steam or hot water to produce electricity or heat. The focus of this research paper will be to assess the compliance status of the boilers which were in the original EPA major source Boiler MACT group to provide insight into the current operating status of these boiler units.

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Leonov, E., and P. Trubaev. "INFLUENCE OF THERMAL PHYSICAL PROPERTIES OF BIOGAS COMBUSTION PRODUCTS ON THE THERMAL PARAMETERS OF WATER HEATING BOILERS." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 9, no. 10 (2024): 63–72. http://dx.doi.org/10.34031/2071-7318-2024-9-10-63-72.

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The combustion products of biogas and natural gas differ in the content of components, which affects their heat content and heat exchange in boilers. To determine the possibility of using biogas in boilers designed for burning natural gas, the work compares the thermophysical properties of the combustion products of natural gas and biogas and their influence on the results of boiler calculations. Methods were obtained for calculating the thermal conductivity and viscosity of a mixture of gases depending on their composition and temperature. The comparison showed that the calorimetric and therm

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7

Osintsev, Konstantin, Sergei Aliukov, and Sulpan Kuskarbekova. "Experimental Study of a Coil Type Steam Boiler Operated on an Oil Field in the Subarctic Continental Climate." Energies 14, no. 4 (2021): 1004. http://dx.doi.org/10.3390/en14041004.

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Transportable boiler plants are widespread in the northern regions of the Russian Federation and have a large and stable demand in various spheres of life. The equipment used and the schemes of existing boiler plants are outdated—they require replacement and modernization. Our proposed new installation includes a coil type steam boiler and ancillary equipment designed with the identified deficiencies in mind. The steam boiler coils are coaxial cylinders. The scope of the modernized transportable boiler plant is an oil field in the subarctic continental climate. The work is aimed at completing

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8

Rajic, Milena, Dragoljub Zivkovic, Milan Banic, et al. "Experimental and numerical stress and strain analysis of the boiler reversing chamber tube plate." Thermal Science, no. 00 (2021): 207. http://dx.doi.org/10.2298/tsci210313207r.

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Boilers are one of the most used units for both heat generation plants and industry systems. Their operation is subjected to different working loads and maintenance requirements. Exploitation experience points out critical boiler zones where failures and break downs typically occur. This paper analyzes critical zones in hot water fire-tube boiler. Experimental procedure was performed on the model of this type of boilers and its critical element. The tube plate of hot water boiler was identified as the most critical one. Experimental analysis and numerical model verification were performed usin

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9

Dr., Upasana Sharma, and Sharma Gunjan. "COMPARATIVE STUDY OF TWO STANDBY INNOVATIVE SYSTEMS WHERE OPERATION OF ALL STANDBY UNITS IS NECESSARY ON THE FAILURE OF MAIN UNIT." International Journal of Engineering Sciences & Research Technology 5, no. 2 (2016): 805–12. https://doi.org/10.5281/zenodo.46526.

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The present paper gives the comparative study with respect to profit between two models for boiler working in thermal power plant. The system consists of one high pressure boiler, which is a main unit and two/three low pressure boilers, which are cold standby units. Model I comprises one main unit and two standby units and Model II comprises one main unit and three standby units. Upon the failure of main unit in Model I as well as in Model II, all the standby units will start functioning together. The system will be in failed state on the failure of main unit and any of the standby unit. Compa

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10

Brkić, Dejan. "European Efficiency Schemes for Domestic Gas Boilers: Estimation of Savings in Heating of Settlements." Algorithms 18, no. 7 (2025): 416. https://doi.org/10.3390/a18070416.

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This article aims to evaluate the seasonal efficiency of natural gas boilers used in European households, highlighting the cost effectiveness, environmental benefits, and user comfort associated with higher-efficiency models, particularly those based on condensing technology. The study applies a standardized algorithm used in European energy labeling schemes to calculate the seasonal efficiency of household gas boilers. It further includes a comparative analysis of selected boiler models available on the Serbian market and outlines a step-by-step method for estimating gas savings when replacin

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11

Chandrasekharan, Sreepradha, Rames Chandra Panda, and Bhuvaneswari Natrajan Swaminathan. "Dynamic analysis of the boiler drum of a coal-fired thermal power plant." SIMULATION 93, no. 11 (2017): 995–1010. http://dx.doi.org/10.1177/0037549717703465.

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The subcritical coal-fired boilers of thermal power plants consist of a combustion chamber, economizer unit, drum unit (drum, riser, and downcomer), superheater unit (primary superheater, secondary superheater, and final superheater), and reheater unit. The input and output of these units are highly interactive in nature. The efficiency of the subcritical plants is only around 33%. The efficiency needs to be increased to produce more power for the increasing demand, which can be achieved only by implementing supercritical technology or ultra-supercritical technology. However, the conversion of

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12

Fialko, N., R. Navrodska, G. Gnedash, M. Novakivskii, and G. Sbrodova. "USE AND DISPOSAL OF ACIDIC WATER CONDENSATE FROM GAS-FIRED BOILER UNITS." Municipal economy of cities 4, no. 164 (2021): 24–30. http://dx.doi.org/10.33042/2522-1809-2021-4-164-24-30.

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During operation in boiler units of modern condensing boilers or modernization of old-style boilers, water condensate is formed due to heat-recovery equipment in the mode of cooling exhaust-gases below the dew point of water vapor. At natural gas is burned in equipment, the range of values of the pH value of the condensate is within the range of 3 ÷ 6. In this connection, the problem arises of the useful use of this condensate or its safe drainage into the sewer network. At useful use, the resulting condensate can be used for the needs of the boiler units (for washing boilers, in chemical wate

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13

Blackwell, Huw. "A technical note investigating the combination boiler market as a proxy for a simple thermal quality of service standard in heat interface units." Building Services Engineering Research and Technology 40, no. 5 (2019): 627–37. http://dx.doi.org/10.1177/0143624418824799.

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Heat interface units used in district heating networks provide very similar services to those expected from domestic gas boilers. As heat interface units become more common, it is becoming clear that heat interface units are often oversized. This technical note aims to review and summarise the technical specification of equipment typically available from combination boiler (also known as combi boilers) manufacturers in the UK. This includes thermal outputs and flow rate limitations, particularly those associated with domestic hot water production. It is proposed for use as an equivalent typica

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14

Guo, Yue Feng, Yong Dong Bu, Fu Long He, Wei Qi, and Yi Jin. "Numerical Simulation Study on Nitrogen Oxides Emissions of Power Plant." Applied Mechanics and Materials 295-298 (February 2013): 915–18. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.915.

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Modeling and optimization of NOx emissions is an important task of boiler combustion optimization. Nonlinear modeling techniques with adaptive mechanisms and the genetic algorithm for optimization are all used widely. The purpose of this study is to achieve successful application of modeling and optimization for NOx emissions of fossil-fired boilers. In this paper the adaptive modeling techniques and genetic algorithm will be integrated and applied on the NOx emission data of two different utility boiler units.

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15

Ivasenko, Vitaliy, and Igor Primisky. "Analysis of emissions during the combustion of pellets in boiler units." Technology audit and production reserves 4, no. 3(66) (2022): 29–34. http://dx.doi.org/10.15587/2706-5448.2022.263926.

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The object of research is the technological process of burning pellets in boilers. Using solid fuel boilers on pellets for heat production, they are trying to reduce dependence on hydrocarbon energy resources. Often such boilers are installed for autonomous heating of schools and other communal facilities. One of the most problematic areas is the analysis of the environmental impact when using pellets as a fuel for municipal boiler houses in urban areas. Boilers operating on solid fuels are characterized by a larger range of pollutants, as well as large values of concentrations emitted through

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16

Mikhaylenko, Anna, and Pavel Shchinnikov. "Power Plants Process Control Improvement in Emergency." Applied Mechanics and Materials 792 (September 2015): 386–92. http://dx.doi.org/10.4028/www.scientific.net/amm.792.386.

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The paper shows the relevance of the research process protections of power units that reduce or prevent economic damage caused by the accident. For this data, the design methodology for coal-fired units with drum boilers, which allow to define the work on stored energy boiler auxiliary load. The proposed technique reduces the cost of implementing the considered technological protections.

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17

Lyubov, Victor K., and Aleksandr M. Vladimirov. "Complex Efficiency of Using Wood Pellets in Power Plants." Lesnoy Zhurnal (Forestry Journal), no. 1 (February 9, 2021): 159–72. http://dx.doi.org/10.37482/0536-1036-2021-1-159-172.

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In advanced countries, the dramatic impact of greenhouse gases on the global climate is reduced by replacing fossil fuels with biofuels. This method is being actively encouraged. However, by-products of logging, processing and conversion of wood are classified as difficult to burn fuels due to their high moisture content, low energy density and extremely heterogeneous granulometric composition. A promising direction to increase the energy density and transportability of the timber industry by-products is their granulation. Wood pellet fuel burning in heat-generating plants results in significa

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18

Liu, Fa Sheng, Yong Lu Zhong, Rui Xu, Lin Guo Chen, and Yong Jun Xia. "Test and Research for Mercury Emission of Boilers in 700 MW Units." Applied Mechanics and Materials 672-674 (October 2014): 1514–18. http://dx.doi.org/10.4028/www.scientific.net/amm.672-674.1514.

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In this paper, the conversion process and the existing forms of mercury in the course of coal firing are first analyzed, and different methods to measure mercury are introduced; To assess the mercury emission levels of boilers in large power plants, through testing the mercury content in combustion products of the boiler in 700 MW unit under different loads in one power plant of Jiangxi Province, we analyzed the formation distribution of mercury emissions and the effect of low temperature economizer on the mercury concentration before and after the ESP, and acquired the mercury emission charac

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19

Xu, Nan, Shaoming Ding, Yuan Hu, et al. "Analyses on combustion characteristics and the region of corrosion failure risk of high-temperature heating-surface in peak-loading power plant boiler." Journal of Physics: Conference Series 2968, no. 1 (2025): 012001. https://doi.org/10.1088/1742-6596/2968/1/012001.

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Abstract Deep peaking will be the operating norm for thermal power units to address the intermittent supply of clean energy. However, the heat exchanger serves the temperature fluctuation conditions in the boiler during deep peaking. It will result in a risk of corrosion failure of high-temperature heating surfaces such as superheater and reheater. The paper investigated the combustion characteristics of coal-fired boilers at 100% and 50% loads. The temperature and velocity field distributions under different loads are clarified. The corrosion failure risk area of the furnace heating surface i

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20

Vitaliy, Ivasenko, and Primisky Igor. "Analysis of emissions during the combustion of pellets in boiler units." Technology audit and production reserves 4, no. 3(66) (2022): 29–34. https://doi.org/10.15587/2706-5448.2022.263926.

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<em>The object of research is the technological process of burning pellets in boilers. Using solid fuel boilers on pellets for heat production, they are trying to reduce dependence on hydrocarbon energy resources. Often such boilers are installed for autonomous heating of schools and other communal facilities. One of the most problematic areas is the analysis of the environmental impact when using pellets as a fuel for municipal boiler houses in urban areas. Boilers operating on solid fuels are characterized by a larger range of pollutants, as well as large values of concentrations emitted thr

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21

Reev, V. G. "Analysis of the implementation of a heat pump unit into the Yakutsk combined heat and power plant (CHP) scheme." Vestnik of North-Eastern Federal University 21, no. 4 (2025): 56–64. https://doi.org/10.25587/2222-5404-2024-21-4-56-64.

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The article considers the potential for fuel and energy savings through the integration of heat pump units (HPUs) into the existing thermal power generation scheme of the Yakutsk combined heat and power plant (CHP). Currently, one of the promising energies saving technologies is heat pump units (HPU). The Yakutsk CHP, with a total thermal output capacity of 450 Gcal/h, currently relies on five hot water boilers: two KVGM-100 units, two PTVM-100 units, and one PTVM-50 unit. According to the United Cycle (UC) program, a thermal scheme simulation was conducted to assess the impact of incorporatin

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22

Zaporozhets, Arthur, and Yurii Kuts. "HARDWARE AND SOFTWARE OF AUTOMATIC CONTROL SYSTEM OF FUEL COMBUSTION PROCESS IN LOW AND MEDIUM POWER BOILERS. PART 2. ALGORITHMIC SOFTWARE." Bulletin of Kyiv Polytechnic Institute. Series Instrument Making, no. 62(2) (December 24, 2021): 65–75. http://dx.doi.org/10.20535/1970.62(2).2021.249223.

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The efficiency of the functioning of boiler units depends on the availability of reliable information on the progress of technological processes. The lack of control and measuring systems for the composition of the exhaust gases leads to low efficiency of the boiler unit, in particular, due to poor-quality fuel combustion. Therefore, in modern operating conditions of boiler units, it is relevant to develop technological solutions focused on finding and minimizing the causes and mechanisms of the formation of harmful substances in exhaust gases. Due to the fact that replacement of outdate

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23

Sigal, I. Ya, A. V. Smikhula, O. V. Marasin, E. M. Lavrentsov, and E. P. Dombrowska. "MODERNIZATION OF GAS BOILERS OF TPP, CHP AND BOILERS ROOMS TO THE EU DIRECTIVE ECOLOGICAL REQUIREMENTS." Energy Technologies & Resource Saving, no. 4 (December 20, 2017): 61–70. http://dx.doi.org/10.33070/etars.4.2017.09.

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The installed capacity of boiler units in Ukraine significantly exceeds the needs for consumers was shown. The remarking of boiler units to lower capacity is the one of the least capital-intensive ways to increase their technical, economic, environmental indicators and the extension of their resource. To achieve EU norms it is necessary to reduce emissions of NOx by 50–80 % for boilers of LCP with an capacity a rated thermal input of 50 MW or more, which operate on natural gas has been established. An increase the concentration of recirculation gases in blow air of more than 25 % of all exhaus

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24

Basu, P., and P. K. Halder. "A New Concept for Operation of a Pulverized Coal Fired Boiler Using Circulating Fluidized Bed Firing." Journal of Engineering for Gas Turbines and Power 111, no. 4 (1989): 626–30. http://dx.doi.org/10.1115/1.3240302.

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The feasibility of adapting existing pulverized coal fired boilers slated for life extension to circulating fluidized bed firing is examined by considering the case of a 150 MWe tangentially fired pulverized coal boiler. The proposed modifications call for a minimum of change in existing units. Thermal calculations are presented to show how heat absorption in different sections of the converted boiler can be matched to that in the pre-existing pulverized coal fired boiler. Data for two load conditions are presented to identify problems associated with low loads. Fuel flexibility in the convert

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25

Gerasimova, N. P., and T. V. Koval. "Improvement of corrosion resistance of internal surfaces in power-generating equipment." iPolytech Journal 26, no. 1 (2022): 43–52. http://dx.doi.org/10.21285/1814-3520-2022-1-43-52.

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We investigate the possibility of using induction currents for improving the reliability of thermal power plants by increasing the corrosion resistance of internal surfaces of power-generating equipment, such as heating surfaces of boiler units. Corrosion resistance can be enhanced by improving the strength of an oxide film formed during passivation (oxidation). In this work, the oxide film strength was increased by electrochemical passivation of metal surfaces with induction currents. Using the method of multidimensional mathematical modeling of multi-parametric and multi-functional processes

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26

Sigal, I. Ya, A. V. Smikhula, and O. I. Sigal. "EXPERIENCE OF THE DEVELOPMENT OF BURNERS, CHAMBERS, AND TECHNOLOGIES FOR REDUCING EMISSIONS OF NITROGEN OXIDES BY BOILERS DURING THE COMBUSTION OF NATURAL GAS." Energy Technologies & Resource Saving, no. 3 (September 20, 2019): 70–79. http://dx.doi.org/10.33070/etars.3.2019.07.

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In the article discusses the features of constructive solutions accepted in the burner devices and chambers of boiler units, which were used both when converting solid fuel boilers to natural gas, and creating new designs of gas boiler units. The works to reduce nitrogen oxide emissions at the Gas Institute of the National Academy of Sciences of Ukraine began in the 1960s and by 1971 significant results had been achieved was shown. The main methods and technical solutions that are used to reduce emissions of nitrogen oxides during the combustion of natural gas in boilers of various capacities,

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27

Maysyuk, Elena. "Measures to prevent emissions of pollutants when burning coals in small-capacity boilers in the central ecological area of the Baikal natural territory." E3S Web of Conferences 77 (2019): 04007. http://dx.doi.org/10.1051/e3sconf/20197704007.

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The paper presents a brief description of the municipal coal-fired boiler plants of the central ecological zone and estimation of the emission of pollutants into the atmosphere. The intensity and volume of emissions depend on many factors. These are the capacity and efficiency of the boiler units, the amount of fuel consumed and its physicochemical properties, the type of furnace and the degree of flue gas cleaning. The study indicates that 25% of the total emissions from coal-fired boilers is produced by the energy sources with manually - loaded boilers with a unit capacity of up to 1 Gcal/hr

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Shen, Jian, Zhao Hua Huang, Jian Mei Wang, Chun Lin Zhang, and Cheng Ma. "A Comparison Analysis of Boiler Feed-Water Pump Set for the 1000MW Power Plant with Energy Saving in Energy Engineering." Advanced Materials Research 648 (January 2013): 241–46. http://dx.doi.org/10.4028/www.scientific.net/amr.648.241.

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This article compares the domestic configurations of the boiler feed-water pump for 1000MW units, and takes the technical and economic comparison of the feed-water pump type selection. Analyzed diverse configurations of the boiler feed-water pump set. For example, to 1000MW units boiler feed-water pump set in a factory, obtained relatively optimal configuration of feed-water pump in connection with various technical and economic index.

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Varganova, Aleksandra V., Vadim R. Khramshin, and Andrey A. Radionov. "Operating Modes Optimization for the Boiler Units of Industrial Steam Plants." Energies 16, no. 6 (2023): 2596. http://dx.doi.org/10.3390/en16062596.

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The free market forces energy-intensive industrial enterprises to continuously compete. A possible competitive advantage for such enterprises is reducing the finished products cost. This may be achieved by reducing the share of energy in this cost, including by rationalizing the use of energy resources. This study develops a system for the automated analysis and calculation of feasible boiler unit loads, defined according to the criterion of the minimum cost of live steam in a separate steam plant pipeline. The calculations consider the balance limit on the steam, the boiler unit’s wear and te

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Al-Dabbas, Mohammad Awwad Ali. "The Availability of Hybrid Nano Adsorption-Multi Stage Ejector Cooling Cycle with a Different Type of Steam Generator." Mathematical Modelling of Engineering Problems 8, no. 5 (2021): 826–36. http://dx.doi.org/10.18280/mmep.080520.

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Ejectors are a kind of pump that does not have any moving components. In certain cases, the motor fluid may be a liquid, steam, or another gas. The research focuses on using nano adsorption combined with a multi ejector to fuel a sophisticated nano adsorption power plant, which is equipped with three shapes of steam boiler generators. The simulation was accomplished by implementing it with the cooperation of the two programs MATLAB A and MATLAB B, together with a solid flow. To raise the temperature of the working fluid before it enters the generator, a jet pump is positioned before the genera

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31

Ryšavý, Jiří, Wei-Mon Yan, Thangavel Sangeetha, et al. "The Bacharach Method: A Low-Cost Tool for Small-Scale Combustion Units’ Flue Gas Quality Control." Fire 7, no. 7 (2024): 232. http://dx.doi.org/10.3390/fire7070232.

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Although current EU regulations, such as EU Directive 2015/1189 on the eco-design of solid fuel boilers and Directive 2015/1188, in accordance with the Machinery Directive 2006/42/EC, require manufacturers to meet specific emission requirements for CE marking, the routine and regular onsite testing of household heating appliances is still not mandatory in many EU countries. This research endeavour addressed this gap by evaluating the effectiveness of the Bacharach method as a rapid and cost-effective tool for assessing flue gas quality, particularly in terms of particulate matter mass concentr

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32

Yao, Yingying, Xiaobo Wang, Zhongzhou Dou, Hang Wang, and Zeyang Li. "Design and feasibility verification of regenerative system of electric thermal storage boiler for peak shaving in summer in power plant." MATEC Web of Conferences 355 (2022): 02060. http://dx.doi.org/10.1051/matecconf/202235502060.

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During the heating period, the thermal storage electric boiler helps the thermal power units to participate in the deep peak regulation by converting the electric energy into heat energy for heating users, but in the non-heating period, the thermal storage electric boiler can not operate because there is no heat user, as a result, the thermal storage electric boiler is shut down in summer, and can not assist the thermal power unit to participate in the deep peak regulation. Therefore, this paper designs an electric thermal storage boiler regenerative system for peak shaving in summer. In this

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Huang, Yuansheng, Lijun Zhang, and Min Zhong. "Study on Coordination Control of Subcritical Circulating Fluidized Bed Units with Win-Win Source Network." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 37, no. 3 (2019): 621–27. http://dx.doi.org/10.1051/jnwpu/20193730621.

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Aiming at the large delay and inertia characteristics of circulating fluidized bed units, a coordinated control method of circulating fluidized bed units under the CPS evaluation system of power grid is proposed. Firstly, starting from the power grid performance evaluation index CPS, the formation characteristics of regional control error ACE in the CPS index are analyzed. Then, according to the operation characteristics of circulating fluidized bed units, the feasibility of realizing the boiler-turbine-grid coordinated control system is revealed. Then, the switch controller based on the energ

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Huang, Yuehua, Qing Chen, Zihao Zhang, Xingtao Liu, Jintong Tu, and Lei Zhang. "Optimal Scheduling of Combined Electric and Heating Considering the Control Process of CHP Unit and Electric Boiler." Processes 11, no. 3 (2023): 753. http://dx.doi.org/10.3390/pr11030753.

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In order to solve the problem of new energy consumption, a combined electric and heating system (CEHS) dynamic optimal scheduling method considering the optimal control of combined heat and power (CHP) unit and electric boiler is proposed from the perspective of unit technology transformation, to optimize the thermoelectric coupling relationship and improve the regulation capacity of the CEHS. Firstly, the electric and heat output models of CHP units considering the optimal control process, were constructed and used to analyze the electric–thermal characteristics and the impact of unit pressur

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Xin, Shengwei, Hu Wang, Jianbo Li, et al. "Discussion on the Feasibility of Deep Peak Regulation for Ultra-Supercritical Circulating Fluidized Bed Boiler." Energies 15, no. 20 (2022): 7720. http://dx.doi.org/10.3390/en15207720.

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In order to meet the flexibility operation needs of coal-fired units under the goal of carbon peak and carbon neutralization, it is imperative for circulating fluidized bed (CFB) units to participate in deep peak regulation. By systematically summarizing deep peak regulation operation practice of existing SC and subcritical-parameter-levels CFB units, the feasibility of deep peak regulation technology of an ultra-supercritical (USC) CFB unit under development and being built is analyzed and demonstrated; meanwhile, the deep peak regulation capacity of the boiler is also predicted. The results

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Zheng, Yue Xia, Hui Qiang Li, and Xu Hui Wang. "The Research on Application of 1000Mw Unit Boiler Safety System." Advanced Materials Research 1049-1050 (October 2014): 626–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.626.

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1000MW thermal power the first one million kilowatts unit project, in central China. It is also China's first with "big pressure on the small" approach approved one million kilowatts unit project, its safe operation of boilers has important significance. This article describes the FSSS boiler protection system debugging, application of 2*1000MW units Unit 1, from system debugging, maintenance, use, etc. It should be noted that some of the issues rose for the technical officers.

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Sadkin, I. S., A. P. Shipitsina та P. A. Shchinnikov. "Cost Analysis of the Boiler Unit of Coal Power Units Depending on the Initial Steam Pressure and the Availability оf Flue Gas Purification Systems". ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 66, № 5 (2023): 478–92. http://dx.doi.org/10.21122/1029-7448-2023-66-5-478-492.

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When designing power plants of a new type or equipping them with new generation equipment, the problem of estimating capital investments is solved with the uncertainty of information on its cost. The lack of reliable methods suitable for use in engineering setting complicates decision-making on the technical development of power units and thermal power plants. When evaluating investments in the equipment of power plant units, it is convenient to use continuous functions. Their use makes it possible to carry out the analysis without cost restrictions. The article proposes a method for estimatin

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KHONDOSHKO, YULIA VLADIMIROVNA. "INCREASING ENERGY EFFICIENCY AND SELECTION OF RATIONAL OPERATION PARAMETERS OF BOILER UNITS." Messenger AmSU, no. 95 (2021): 74–77. http://dx.doi.org/10.22250/jasu.95.16.

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The article deals with the main problems of boiler houses operating on solid low-grade fuel. The ways of increasing energy efficiency and methods of more rational use of the existing boiler equipment are proposed.

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Kravets, Taras, Yevhen Miroshnychenko, and Andrii Kapustianskyi. "Enhancement of Technical and Economic Indicators of Power-Generating Units of Thermal Power Plants by Eliminating Flue Gas Recirculation." Energy Engineering and Control Systems 7, no. 1 (2021): 26–31. http://dx.doi.org/10.23939/jeecs2021.01.026.

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Boiler units at Ukrainian thermal power plants need to be modernized or replaced in the short run, as this is important for the national energy security. The authors determined one of possible ways to improve the efficiency indicators of coal-fired boiler units and power generating units as a whole up to the values exceeding the design ones. This variant of improvement consists in abandoning the technology of using flue gas as drying agent in pulverized coal systems and replacing it with direct discharge of the gas flow into the boiler furnace. Numerous computations were carried out to study t

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Żyrkowski, Maciej, and Monika Motak. "Formation of ammonia bisulfate in coal-fired power plant equipped with SCR reactors and the effect of reduced load operation." E3S Web of Conferences 137 (2019): 01021. http://dx.doi.org/10.1051/e3sconf/201913701021.

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Coal fired power plant are still responsible for vast amount of electricity and heat production in Poland in 2019. Increasing number of units is equipped with SCR reactors in order to mitigate NOx emission. Older units have been designed to work in a base load operation· however increasing number of intermittent energy sources on the market· forces power plant owners to operate such units in reduced load for significant number of hours in a year. Most of parameters in coal-fired boiler would change in reduced load operation· particularly flue gas parameters. That would affect the formation of

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Simic, K., I. T’Jollyn, W. Faes, J. Borrajo Bastero, J. Laverge, and M. De Paepe. "Numerical assessment of a gas-fired condensing boiler model for residential buildings application." Journal of Physics: Conference Series 2116, no. 1 (2021): 012016. http://dx.doi.org/10.1088/1742-6596/2116/1/012016.

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Abstract According to the official statistical reports, gas-fired boiler units still remain to be one of the main equipment types for meeting the space heating and daily hot water demand of the residential dwellings across the European Union. Due to the prevalence of the natural gas grid and performance stability, gas-fired boilers are considered to remain as one of the standard energy sources. On the other hand, even though gas-fired water heating technology is a well-known concept, existing numerical models found in the literature are often case-specific with poor reusability mostly reflecte

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Zaporozhets, Arthur, and Yurii Kuts. "HARDWARE AND SOFTWARE OF AUTOMATIC CONTROL SYSTEM OF FUEL COMBUSTION PROCESS IN LOW AND MEDIUM POWER BOILERS. PART 1. METHOD AND HARDWARE." Bulletin of Kyiv Polytechnic Institute. Series Instrument Making, no. 61(1) (June 30, 2021): 37–45. http://dx.doi.org/10.20535/1970.61(1).2021.237091.

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In Ukraine today there are more than 6000 boiler plants with a heating capacity of up to 1 Gcal/h with an efficiency of about 70 %, requiring replacement or modernization, 40 % of boilers are operated with an efficiency of less than 82 %, about 11000 boilers with a capacity of 100 kW to 1 MW have been in operation for over 20 years. Although the part of these boilers in the municipal heat power system of Ukraine does not exceed 14 %, the projected savings in natural fuel in these boilers is more than 130 million cubic meters per year. Thus, increasing the efficiency of the fuel combustion proc

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Tugov, A. N., G. A. Ryabov, A. V. Shtegman, and M. N. Maidanik. "DEVELOPMENT EXPERIENCE OF MODERN MADE IN RUSSIA BOILER INSTALLATIONS." Proceedings of the higher educational institutions. ENERGY SECTOR PROBLEMS 20, no. 7-8 (2018): 87–98. http://dx.doi.org/10.30724/1998-9903-2018-20-7-8-87-98.

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Based on the results of adjustment, testing and industrial development of the main models of boiler units commissioned by Russian thermal power stations in recent years, the level of the domestic boiler plant is shown. The ways of improving these head samples are outlined. Prospective directions of development of domestic boiler plants are given, to which special attention should be paid to scientific research organizations and boiler plants.

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Guo, Xin, Liangwei Xia, Guangbo Zhao, et al. "Steam Temperature Characteristics in Boiler Water Wall Tubes Based on Furnace CFD and Hydrodynamic Coupling Model." Energies 15, no. 13 (2022): 4745. http://dx.doi.org/10.3390/en15134745.

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With the development of power plant units of higher capacity and with improved parameters, the proportion of high-capacity units for generating power has increased; this requires large capacity units to take responsibility for power-grid peak shaving. When the boiler operates at low loads, the working fluid in the boiler water wall tubes is subjected to high heat flux in the furnace, which can cause heat transfer deterioration, tube overheating or even leakage. Therefore, it is particularly important to study the reliability of the boiler hydrodynamic cycle during peak shaving (low load operat

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Effendi, Zulham, Siti Aisyah, and Rionaldo Hastyanda. "Fuel Used Analysis on Boiler Efficiency Variations and Water Intake Temperature Affected by Palm Oil Varieties." Agro Bali: Agricultural Journal 4, no. 1 (2021): 94–105. http://dx.doi.org/10.37637/ab.v0i0.634.

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Several factors that affect the use of fuel in boilers are combustion efficiency, quality of feed water management, calorific value, and the potential for available fuel from oil palm varieties. The purpose of this research is to identify the use of fuel and its potential savings based on variations in boiler efficiency and water temperature that entered the boiler. The materials used in this research are FFB mass balance data and boiler fuel composition. Based on the analysis results, the lowest used fuel mass and the highest fuel savings are found in the DxPLangkat variety with an intake wat

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Węglowski, Bohdan, and Marcin Pilarczyk. "Analysis of long-term operation of the steam boiler live-steam outlet header and assessment of the feasibility of the header operation during accelerated start-ups." E3S Web of Conferences 137 (2019): 01041. http://dx.doi.org/10.1051/e3sconf/201913701041.

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The energy mix in most European countries is now characterized by a growing share of renewable energy sources (RES). The random nature of RES entails the need to balance the differences between the current amount of power generated in the system and the actual power demand. For this reason, power units incorporating steam boilers are most often operated under sub-peak rather than base load regimes. This creates many challenges to boiler operators due to the advanced age of the power units in service. In Poland, for instance, 77% of power units are more than 20 years old and 45% have been worki

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Shulzhenko, S. V. "Thermal Power Plant Fuel Consumption Accounting using “Negative” Member Method in Linear Programming Model for Optimal Generation Dispatch." Problems of General Energy 2021, no. 3 (2021): 4–13. http://dx.doi.org/10.15407/pge2021.03.004.

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The mathematical formulas are presented which are used as additional constraints of the mathematical MILP model for optimal dispatch of power system's generation and allow adequately describe the operation of twin-boiler thermal power units both in single-boiler mode and two-boiler mode. These operation modes are widely used by the coal-fired thermal power twin-boiler units connected to the Integrated Power System of Ukraine and due to actual wider operation range allow to increase power system flexibility that is important under the big share of intermittent renewables, namely wind and solar

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M. Nadeem, I. H. Sheikh, N. Naz, R. Haider, M. F. Alam, and F. Hussain. "Particulate Matter Reduction from Steel Furnaces and Coal fired Boilers through installation of Emission Control Systems (ECS) in Lahore Punjab, Pakistan." Pakistan Journal of Science 76, no. 04 (2024): 702–6. https://doi.org/10.57041/vol76iss04pp702-706.

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This study investigated the impact of Emission Control Systems (ECS) on Particulate Matter (PM) emissions from two major industrial sectors in Lahore i.e boilers and steel induction furnaces. Data was collected from 2020 to 2024 to assess the effectiveness of the Environmental Protection Agency's (EPA) efforts in promoting and enforcing ECS installation. PM emissions were monitored using isokinetic sampling methods for both units equipped with ECS (Wet Scrubbers for boilers and predominantly Dry Scrubbers for steel furnaces) and those operating without ECS. The data demonstrated a significant

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M. Nadeem, I. H. Sheikh, N. Naz, R. Haider, M. F. Alam, and F. Hussain. "Particulate Matter Reduction from Steel Furnaces and Coal fired Boilers through installation of Emission Control Systems (ECS) in Lahore Punjab, Pakistan." Pakistan Journal of Science 76, no. 04 (2024): 732–36. https://doi.org/10.57041/vol76iss04pp732-736.

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This study investigated the impact of Emission Control Systems (ECS) on Particulate Matter (PM) emissions from two major industrial sectors in Lahore i.e boilers and steel induction furnaces. Data was collected from 2020 to 2024 to assess the effectiveness of the Environmental Protection Agency's (EPA) efforts in promoting and enforcing ECS installation. PM emissions were monitored using isokinetic sampling methods for both units equipped with ECS (Wet Scrubbers for boilers and predominantly Dry Scrubbers for steel furnaces) and those operating without ECS. The data demonstrated a significant

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Wang, Li, Jian Jun Li, Ying Hui Wang, and Qing Xiang Guan. "Research on Coordinated Control System for Boiler-Turbine Units Based on Fractional-Order Control." Advanced Materials Research 732-733 (August 2013): 276–79. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.276.

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It is important for conventional thermal power units to participate in frequency adjustment and peak regulation for the safe operation of grid side. This paper research on coordinated control system (CCS) for boiler-turbine units based on fractional-order control (FOC). The realization of fractional-order PID (FOPID) controller in distributed control system (DCS) is provided. The engineering application results show that this algorithm is easy to be realized in project by applying all sorts of existing algorithms in DCS. Furthermore, this algorithm can overcome the large lag and inertia for bo

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