Browsing by Subject "ash content"

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Analiza zmienności zawartości siarki całkowitej i popiołu w węglu we fragmencie pokładu 308 złoża KWK „Ziemowit”
(Data obrony: 2014-07-30) Paszek, Martyna
Wydział Geologii, Geofizyki i Ochrony Środowiska
This paper presents statistical and geostatistical characteristics of the variability of the total sulphur and ash content in part of seam 308 of “Ziemowit” colliery. Statistical analysis of both parameters showed big variability, significant deviations of empirical distributions from the theoretical normal distribution and occurrence of numerous outliers. Geostatistical analysis showed the occurrence of zonal anisotropy in parameters variability and heterogeneity of the seam. Gaussian model was used as a theoretical model of averaged semivariograms . Significant participation of the non-random component and big range of semivariograms confirmed the legitimacy of using geostatiscs for the estimation of sulphur and ash content. Significant decrease of interpolation errors during the transfer from points to blocks interpolation was discovered.
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Wpływ tektoniki na zmienność parametrów jakościowych złoża na przykładzie pokładu 209 KWK "Piast"
(Data obrony: 2011-07-08) Kuciel, Grzegorz
Wydział Geologii, Geofizyki i Ochrony Środowiska
The aim of this Master's thesis was to analyze the tectonic influence on the basic parameters of hard coal quality: calorific value, ash and sulfur content. The research work were done on a selected area of the bed of 209 in Piast „Coal Mine” in Bieruń city. Data for the study came from channel samples taken in mine working and also from boreholes. Studies of variability of hard coal parameters were based on classical statistics.