Characteristics of Rheinisch Brown Coals With Respect to Their Combustion and Fouling Behavior in Thermal Power Stations

1977 ◽  
Vol 99 (4) ◽  
pp. 679-683 ◽  
Author(s):  
K. Hein
Keyword(s):  
Thermal Power ◽  
Research Programme ◽  
Operating Parameters ◽  
Power Station ◽  
Power Stations ◽  
Excess Air ◽  
Thermal Power Stations ◽  
Brown Coals ◽  
First Results ◽  
Fouling Characteristics

In the paper first results of a several years’ research programme into the combustion and fouling characteristics of Rheinish brown coals are given. As described, fouling of the heat transfer surfaces causes severe difficulties for power station operation. The deposit formation is strongly dependent on both the composition of the inherent ash of the fuel and the extraneous impurities. The phenomenon of fouling can be influenced by operating parameters like excess air level and mixing between fuel and combustion air. The temperature of the heat receiving surface as well as its geometry play an important role.

Road Concrete Containing Coal Ashes of Thermal Power Stations Located in Krasnoyarsk

2020 ◽  
Vol 839 ◽  
pp. 160-165
Author(s):  
Galina V. Vasilovskaya ◽  
Maria L. Berseneva ◽  
Alexandra A. Yakshina ◽  
Vadim V. Servatinsky ◽  
Igor Ya. Bogdanov
Keyword(s):  
Fly Ash ◽  
Calcium Oxide ◽  
Thermal Power ◽  
Free Calcium ◽  
Power Station ◽  
Disposal Area ◽  
Power Stations ◽  
Thermal Power Stations ◽  
Concrete Mix ◽  
Ash Disposal

The paper reports on outcomes of research into a road concrete containing coal ash powders of thermal power stations located in Krasnoyarsk. The study was focused on characteristics of a fly ash, and ash taken in an ash-disposal area of Krasnoyarsk Thermal Power Station 1, as well as ash of Beryozovskaya GRES. To compare characteristics a standard limestone powder was used. Physical and mechanical characteristics, chemical and mineral composition of these powders were analyzed. Mineral powders differed in a concentration of free calcium oxide (СаОfr.). Samples of a fine-grained road concrete were composed and prepared using materials above. Physical and mechanical properties of formed road concrete samples were tested. A coefficient K was introduced to assess the relation between key characteristics of a road concrete mix and concentration of free calcium oxide, furthermore, it considers a percentage of СаОfr. in ash (m) and percentage of this ash in a road concrete (n), i.e. К= m·n. It has been established a coefficient К ranging 0 to 32 СаОfr. has no significant effect on characteristics of a road concrete mix. A fly ash and ash taken in an ash-disposal area of Krasnoyarsk thermal power station 1 are recommended for the use in industry as a mineral powder in a road concrete mix. Additionally, ash taken in an ash-disposal area is to be dried and grinded, a maximal content of a fly ash in a road concrete mix is estimated to be 4% provided that a concentration of СаОfr. is less than 8%.

scholarly journals Impact of Thermal Power Pollution on Livestock: A Multivariate Analytical Interpretation from Confronting Social Ecology

2020 ◽  
pp. 16-24
Author(s):  
S. K. Acharya ◽  
Sk Wasaful Quader ◽  
Arindam Ghosh ◽  
Monirul Haque ◽  
Kabita Mondal ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Thermal Power Station ◽  
Social Ecology ◽  
Thermal Power ◽  
Local Environment ◽  
Ecological Condition ◽  
Power Station ◽  
Power Stations ◽  
Thermal Power Stations ◽  
The Social

Thermal power stations are now considered as the foremost global concern as these are responsible to produce detrimental effects on the environment. Environmental Impact Assessment (EIA) is a process of evaluating the likely environmental impact so proposed project or development, taking into account inter-related socio-economic, cultural and human-health impacts, both beneficial and adverse. In this study, the perception of certain(60)farmers in 5 villages of Kolaghat block of Purba Medinipur, West Bengal, India are recorded and analyzed on the basis of their knowledge and views about thermal power, environment and about their individual enterprises. There are 10 independent variables-ages (x1), education (x2), family Member (x3), income (x4), homestead land (x5), total Land (x6), land under Boroj (x7), input cost (x8), and livestock number (x9), distance of villages from Kolaghat Thermal Power Station (x10) and 1 dependable variables- 1) perceived impacts of Kolaghat Thermal Power Station on livestock(y3).It has been found that toxic elements and fly ash from Kolaghat Thermal Power Station have several consequences upon local environment, human, agriculture and livestock. It has also revealed that Kolaghat Thermal Power Station hampers the social ecology of the local areas. The study has further suggested several recommendations to cope with adverse environmental and ecological condition.

scholarly journals STUDYING THE EVALUATION OF THE EFFICIENCY OF PHOSPHORIC ACID ON THE SEPARATION OF NICKEL FROM THE WASTE OF SOUTH BAGHDAD THERMAL POWER STATION

2019 ◽  
Vol 11 (2) ◽  
pp. 197-202
Author(s):  
Basheer Hashem Hlihl
Keyword(s):  
Phosphoric Acid ◽  
Thermal Power Station ◽  
Thermal Power ◽  
Separation Process ◽  
Power Station ◽  
Economic Return ◽  
Power Stations ◽  
Thermal Power Stations ◽  
Temperature Time ◽  
Positive Effect

The process of separating nickel from the waste of thermal power stations has a positive effect on the environment and has a good economic return. . In this study, nickel was separated from the wastes of the South Baghdad thermal power station by using phosphoric acid. The investigation studied the influence parameters ( concentration of acid, temperature, time, size of waste granules and acid to the waste quantity ratio) on separation process of nickel. The best conditions in the separation process were obtained when the concentration of acid is 5 molarities, the temperature 50 °C, the duration time of separation is 4 hours, the acid phosphoric to the waste quantity ratio is 30, and the size of the waste granules is 150μm. The percentage of nickel that can be separated from the wastes of south Baghdad thermal power station reaches 81%.

Adaptation of Algorithms for Diagnostics of Steam Turbine Unit Equipment to Specific Conditions at Thermal Power Stations

2020 ◽  
Vol 67 (11) ◽  
pp. 800-804
Author(s):  
K. E. Aronson ◽  
B. E. Murmansky ◽  
V. B. Novoselov ◽  
Yu. M. Brodov ◽  
A. Yu. Sosnovsky ◽  
...  
Keyword(s):  
Steam Turbine ◽  
Turbine Unit ◽  
Thermal Power ◽  
Steam Turbine Unit ◽  
Power Stations ◽  
Thermal Power Stations

Small-waste technology of water desalination at thermal power stations

Desalination ◽  
1999 ◽  
Vol 126 (1-3) ◽  
pp. 261-266
Author(s):  
A.S. Sedlov ◽  
V.V. Shischenko ◽  
V.F. Ghidkih ◽  
R.M. Chasiachmetov ◽  
Y.I. Pichushkin
Keyword(s):  
Thermal Power ◽  
Water Desalination ◽  
Power Stations ◽  
Thermal Power Stations
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