Influence of the Batch Composition at AO EVRAZ NTMK on the Coke Quality and Pulverized-Coal Consumption

2017 ◽  
Vol 60 (12) ◽  
pp. 445-465 ◽  
Author(s):  
Yu. A. Zolotukhin ◽  
N. A. Berkutov ◽  
S. N. Kupriyanova
2018 ◽  
Vol 48 (8) ◽  
pp. 513-516 ◽  
Author(s):  
A. L. Chaika ◽  
A. P. Fomenko ◽  
V. I. Naboka ◽  
K. S. Tsyupa ◽  
B. V. Kornilov

Author(s):  
B. P. Dovhaliuk ◽  
Ye. O. Buynitsky ◽  
D. O. Halytsky ◽  
M. V. Taran ◽  
O. V. Tkachenko ◽  
...  

Author(s):  
Heinz Termuehlen

Since 50% of the electric power in the US is generated by pulverized-coal-fired power plants and 95% of the US fossil fuel reserves are coal, immediate action should be taken to improve coal-fired power plant performance. The DOE has started a program to develop most efficient coal-fired power plants with the goal to reach 60% net power plant efficiency. Present coal-fired power plants are mainly designed and built more than 30 years ago with a net power plant efficiency of about 32%. We should not wait for a general application of a future technology with the potential of reaching the 60% net efficiency level of coal-fired power plants. We must take action today and build more advanced pulverized-coal-fired power plants based on a technology, which has already gained operating experience and is commercially available. This paper shows how such power plants can be built as new units or as units replacing outdated units. A power plant net efficiency of 45% can be achieved even with highly effective emission reduction systems already included. The 40% lower specific coal consumption of these plants over present units reduces also the CO2 discharge by the same magnitude. Coal-fired power plants can also be designed for proving high operating flexibility. They can support the grid system in case of grid disturbances and can also stay at idle operation after full-load rejections for immediate reloading. Therefore, blackouts can be avoided. This paper provides detailed information on how to build such advanced pulverized-coal-fired power plants.


2012 ◽  
Vol 55 (12) ◽  
pp. 448-452 ◽  
Author(s):  
V. P. Lyalyuk ◽  
D. A. Kassim ◽  
I. A. Lyakhova ◽  
V. P. Sokolova

2020 ◽  
Vol 6 (2) ◽  
pp. 194-221 ◽  
Author(s):  
Paul K. Gellert ◽  
Paul S. Ciccantell

Predominant analyses of energy offer insufficient theoretical and political-economic insight into the persistence of coal and other fossil fuels. The dominant narrative of coal powering the Industrial Revolution, and Great Britain's world dominance in the nineteenth century giving way to a U.S.- and oil-dominated twentieth century, is marred by teleological assumptions. The key assumption that a complete energy “transition” will occur leads some to conceive of a renewable-energy-dominated twenty-first century led by China. After critiquing the teleological assumptions of modernization, ecological modernization, energetics, and even world-systems analysis of energy “transition,” this paper offers a world-systems perspective on the “raw” materialism of coal. Examining the material characteristics of coal and the unequal structure of the world-economy, the paper uses long-term data from governmental and private sources to reveal the lack of transition as new sources of energy are added. The increases in coal consumption in China and India as they have ascended in the capitalist world-economy have more than offset the leveling-off and decline in some core nations. A true global peak and decline (let alone full substitution) in energy generally and coal specifically has never happened. The future need not repeat the past, but technical, policy, and movement approaches will not get far without addressing the structural imperatives of capitalist growth and the uneven power structures and processes of long-term change of the world-system.


Sign in / Sign up

Export Citation Format

Share Document