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pro vyhledávání: '"Janusz Cygankiewicz"'
Autor:
Janusz Cygankiewicz, Józef Knechtel
Publikováno v:
Journal of Sustainable Mining, Vol 13, Iss 4, Pp 1-4 (2014)
Purpose: Assessing the level of heat hazard in rock mass. Measurements of virgin rock temperature were made in 89 active workings of collieries located in the area of Katowicki Holding Węglowy. Methods: Experimental method – in situ measurements,
Externí odkaz:
https://doaj.org/article/cfbd0b542a1545b8aa6f2367b85bb3ca
Autor:
Janusz Cygankiewicz
Publikováno v:
Archives of Mining Sciences. 60:761-776
Decades of experience in the fight against endogenous fire hazard in coal mines indicate a major influence of certain conditions in a given area of the mine on the possibility of fire occurrence, such as: susceptibility of coals to spontaneous combus
Autor:
Janusz Cygankiewicz, Józef Knechtel
Publikováno v:
Archives of Mining Sciences. 59:189-216
The aim of this study was to examine the effect of the temperature of surrounding rocks on enthalpy and temperature of air flowing along several model mine workings. Long workings surrounded by non- -coal rocks as well longwall gates surrounded by co
Autor:
Józef Knechtel, Janusz Cygankiewicz
Publikováno v:
Journal of Sustainable Mining, Vol 13, Iss 4, Pp 1-4 (2014)
Purpose Assessing the level of heat hazard in rock mass. Measurements of virgin rock temperature were made in 89 active workings of collieries located in the area of Katowicki Holding Weglowy. Methods Experimental method – in situ measurements, the
Publikováno v:
Journal of CO2 Utilization. :44-48
Measurements of CO 2 sorption are taken by the weighting method, using the specialist equipment: a low-pressure microbalance (Sartorius). Experiments are performed at 3 temperatures: 272, 298 and 313 K. Low-pressure sorption data for the coal–gas s
Publikováno v:
Archives of Mining Sciences. 58:867-879
In this paper results of investigations of sorption of hard coal samples collected from the extracted coal seams of Polish coal mines are presented. As sorbate propane was used. Examinations were carried out in the temperature of 298 K by means of vo
Publikováno v:
Archives of Mining Sciences. 58:449-463
Ethane constitutes an explosive gas. It most often accompanies methane realizing during exploitation and mining works. In this paper the results of ethane sorption have been discussed on three grain classes of six selected hard coal samples collected
Autor:
Janusz Cygankiewicz, Józef Knechtel
Publikováno v:
Journal of Geography and Geology. 7
Heat flow in a hot mining department, where the original temperature of rock is greater than 50 0 C has been studied. The total power of electrical equipment installed in the department amounts to about 6 MW. In accordance with the current climate re
Autor:
Janusz Cygankiewicz
Publikováno v:
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings.
Publikováno v:
Geology, Geophysics & Environment. 39:341
Type, amound and composition of gases which from in rocks and coals metamorpfism process depends on a number of factors in particular genetic type of original matter, way and conditions of its gathering, temperature, pressure and geological time. Sor