Improvements to Operational and Environmental Performance of Power Boiler Plants and Coal Thermal Power Plants

Author(s):  
A. G. Tumanovskii ◽  
A. N. Tugov ◽  
G. A. Ryabov
2018 ◽  
Vol 6 ◽  
pp. 333-337
Author(s):  
Tsvetomir L. Manolov

Growing pressure on businesses to disclose environmental information also implies an increase in the volume of such disclosures. This article is an attempt to present the guidelines and to assess the levels of environmental information disclosure in Bulgaria.Companies, which were identified as the most responsible for air pollution, are thermal power plants. We have studied only these, which produce electricity. A checklist, containing 17 environmental performance assessment criteria, was developed and was completed based on the information, disclosed in the companies' annual financial statements, their activity reports and their websites. Based on a comparative analysis of the quantitative and qualitative information, disclosed by examined companies, we discovered that most companies disclose quantity environmental information, largely neglecting qualitive information. Taking into account the character of their activity, they should disclose more environmental information, especially qualitive information.


2019 ◽  
Vol 140 ◽  
pp. 03002
Author(s):  
Evgenii Zhukov ◽  
Konstantin Menyaev ◽  
Dmitry Taymasov

The paper presents use of wood waste as fuel in industrial thermal power plants. The paper proposes methods of disposal of low calorific fuels produced from waste. The results of physical experiments and numerical simulations showed possible effective application of wood waste as fuel in industrial thermal power plants. The presented boilers are of superior environmental performance as they are equipped with fuel circulation system. The boilers make rational use of wood waste and lower coal consumption in small and medium-sized thermal power plants. New technology is tested in an operating facility.


2019 ◽  
Vol 12 (1) ◽  
pp. 22-28
Author(s):  
V. Ye. Mikhailov ◽  
S. P. Kolpakov ◽  
L. A. Khomenok ◽  
N. S. Shestakov

One of the most important issues for modern domestic power industry is the creation and further widespread introduction of solid propellant energy units for super-critical steam parameters with high efficiency (43–46%) and improved environmental parameters. This will significantly reduce the use of natural gas.At the same time, one of the major drawbacks of the operation of pulverized coal power units is the need to use a significant amount of fuel oil during start-up and shutdown of boilers to stabilize the burning of the coal torch in the variable boiler operating modes.In this regard, solid fuel TPPs need to be provided with fuel oil facilities, with all the associated problems to ensure the performance (heating of fuel oil in winter), reliability and safety. All of the above problems increase both the TPP capital construction costs, and the electricity generating cost.A practical solution to the above problems at present is the use of a plasma technology for coal torch ignition based on thermochemical preparation of fuel for combustion. The materials of the developments of JSC “NPO CKTI” on application of plasmatrons in boilers of thermal power plants at metallurgical complexes of the Russian Federation are also considered.Plasma ignition systems for solid fuels in boilers were developed by Russian specialists and were introduced at a number of coal-fi red power plants in the Russian Federation, Mongolia, North Korea, and Kazakhstan. Plasma ignition of solid fuels is widely used in China for almost 30% of power boilers.The introduction of plasma-energy technologies will improve the energy efficiency of domestic solid-fuel thermal power plants and can be widely implemented in the modernization of boilers.During the construction of new TPPs, the construction of fuel oil facilities can be abandoned altogether, which will reduce the capital costs of the construction of thermal power plants, reduce the construction footprint, and increase the TPP safety.


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