Hard Coal a Fuel of the Future and a Chance for Kompania Węglowa S.A.

2006 ◽  
Vol 39 (22) ◽  
pp. 83-87
Author(s):  
Janusz Imiela
Keyword(s):  
2016 ◽  
Vol 61 (2) ◽  
pp. 335-350 ◽  
Author(s):  
Lidia Gawlik ◽  
Maciej Kaliski ◽  
Jacek Kamiński ◽  
Andrzej P. Sikora ◽  
Adam Szurlej

AbstractThis paper reviews the coal policy of Poland. It analyzes the forecasts of production and consumption of hard coal, the size of exports and imports and its importance for the energy sector on the basis of strategic documents. The main aim of the article is to show the role of hard coal in the fuel - energy balance of Poland until 2050. The adoption of appropriate assumptions for each scenario, including the maximum supply of hard coal from domestic mines, coal price curves, CO2emission allowances and several calculations performed allowed to obtain certain results on the basis of which the future role of hard coal was determined.


Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1521 ◽  
Author(s):  
Przemysław Kaszyński ◽  
Jacek Kamiński

The impact of environmental regulations implemented in the power industry that affect the consumption of solid fuels is of key importance to coal-based power generation systems, such as that in Poland. In this context, the main purpose of the paper was to determine the future demand for hard coal and brown coal in the Polish power sector by 2050 with reference to the environmental regulations implemented in the power sector. To achieve these goals, a mathematical model was developed using the linear programming approach, which reflected the key relationships between the hard and brown coal mining sector and the power sector in the context of the environmental regulations discussed. The environmental regulations selected had a great influence on the future demand for hard and brown coal in the power generation sector. The scope of this influence depended on particular regulations. The prices of CO2 emission allowances and stricter emissions standards stemming from the Industrial Emissions Directive and the BAT (Best Available Techniques) conclusions had the largest influence on the reduction of hard coal demand. In the case of brown coal, no new power generating units would be deployed; hence, brown coal consumption would drop practically to zero in 2050 under all the scenarios considered.


2020 ◽  
Vol 3 (1) ◽  
pp. 83-92
Author(s):  
Witold Biały

AbstractThis paper presents the problem of technical means failure, used both in longwall reinforcement and in the mining process. Longwall reinforcement – a concept related to launching a longwall mining excavation – is one of the most important elements in the process of hard coal seams exploitation. It consists in introducing all necessary machinery and equipment to the future longwall in order to enable the effective mining process. The efficiency of a longwall excavation as well as works related to the reinforcement of longwalls depends directly on properly selected machines and equipment of the longwall complex. In order to ensure greater effectiveness and efficiency, it is necessary to find the causes of the most frequent failures in these processes and effectively counteract them. These actions result in increased production availability of machines and equipment involved in the mining process. The increase of production availability is significantly influenced by the technical condition of technical means used both in longwall reinforcement and in the mining process, and their proper selection. This will ensure a largely failure-free and uninterrupted progress of works.


1961 ◽  
Vol 13 ◽  
pp. 29-41
Author(s):  
Wm. Markowitz
Keyword(s):  

A symposium on the future of the International Latitude Service (I. L. S.) is to be held in Helsinki in July 1960. My report for the symposium consists of two parts. Part I, denoded (Mk I) was published [1] earlier in 1960 under the title “Latitude and Longitude, and the Secular Motion of the Pole”. Part II is the present paper, denoded (Mk II).


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