Search
Search results for: COAL
-
Coal International
Journals -
Coal Conversion
Journals -
HYDRAULIC CONDUCTIVITY OF COAL MINE TAILINGS
Publication -
Clean Coal Technology
Journals -
Coal Science and Technology
Journals -
Prediction of coking dynamics for wet coal charge
PublicationA one-dimensional transient mathematical model describing thermal and flow phenomena during coal coking in an oven chamber was studied in the paper. It also accounts for heat conduction in the ceramic oven wall when assuming a constant temperature at the heating channel side. The model was solved numerically using partly implicit methods for gas flow and heat transfer problems. The histories of temperature, gas evolution and internal...
-
Editorial: Advances in geochemistry and macromolecular structure of coal
Publication -
Carbon fractionation and stable carbon isotopic fingerprint of road dusts near coal power plant with emphases on coal-related source apportionment
Publication -
Three phase transient model of wet coal pyrolysis
PublicationA one-dimensional transient mathematical model was developed to describe the thermal and flow phenomena during coal pyrolysis in a coke oven. The model was solved numerically using partly implicit methods for gas flow and heat transfer problems. It was successfully validated with industrial-scale measurements of temperature change in the middle-plane of the coke oven chamber. The evolution of temperature and pressure, distributions...
-
Low sulphur coal combustion - Optimisation of boiler tunings.
PublicationBadaniami w ramach projektu objęto przede wszystkim kotły parowe oraz układy wspomagające, takie jak: podajniki węgla, młyny, wentylatory, instalacje oczyszczania spalin. Badania eksperymentalne przeprowadzono na obiektach Elektrociepłowni Kraków, natomiast obliczenia numeryczne zostały wykonane przez Politechnikę Wrocławska we współpracy z firmą R&D EDF. Sformułowano szereg konkretnych wytycznych do przeprowadzenia niezbędnych...
-
Slope Reinforcement with the Utilization of the Coal Waste Anthropogenic Material
Publication -
Mercury emission from coal-fired power plants in Poland
PublicationPrzedstawiono główne źródła emisji rtęci w Polsce. W zwiazku z dużą ilością spalanego węgla, jak również planami na przyszłość węgiel kamienny i brunatny jest i będzie podstawowym źródłem produkcji energii w Polsce. Ponieważ węgiel zawiera rtęć, to podczas spalania węgla rtęć uwalniania jest do atmosfery. Spalanie węgla w elektrowniach jest i będzie w najbliższym czasie głównym źródłem emisji rtęci w Polsce. W pracy opisano metody...
-
An approach for estimation of water wall degradation within pulverized-coal boilers
PublicationThe main aim of this paper is to estimate the lifetime of water walls of pulverized-coal boilers at nominal conditions as well as after degradation of water tubes. An approach for a pulverized-coal chamber degradation process has been formulated based on operational and experimental data. This model was formulated using on-line state monitoring of a pulverized coal burner with aim of preventing the fireplace screens from high degradation...
-
Accelerated peatland disappearance in the vicinity of the Konin brown coal strip mine
Publication -
PROPERTIES OF FIBER REINFORCED CEMENT COMPOSITES WITH CENOSPHERES FROM COAL ASH
Publication -
Numerical modeling of the combustion in a lab-scale pulverized-coal fired combustion chamber
PublicationThis work presents results of numerical modeling of the combustion process inside a lab-scale drop-tube chamber, designed to investigate the slagging properties of the flue ashes, created through the solid fuel firing. Interaction between turbulence and chemistry is accounted by use of probability density function (PDF). FLUENT inputs for non-premixed combustion chemistry modeling are defined. A discrete second phase of the coal...
-
Numerical modeling of the combustion in a lab-scale pulverized-coal fired combustion chamber
PublicationThis work presents results of numerical modeling of the combustion process inside a lab-scale drop-tube chamber, designed to investigate the slagging properties of the flue ashes, created through the solid fuel firing. Interaction between turbulence and chemistry is accounted by use of probability density function (PDF). FLUENT inputs for non-premixed combustion chemistry modeling are defined. A discrete second phase of the coal...
-
State aid for coal mines in Poland
Open Research DataThe dataset encompassed a choice of important legal acts, a list of selected Polish and foreign bibliography and a list of important individual decisions issued on the topic of state aid for coal mines in Poland in the period 1998-2018. Thanks to that the reader gets the possibility do acquire basic knowledge on the above mentioned topic.
-
Restructuring of the Coal Mining Industry and the Challenges of Energy Transition in Poland (1990–2020)
Publication -
The Effect of WC/C Coating on the Wear of Bevel Gears Used in Coal Mines
Publication -
Use of biomass and coal in process of co-firing fuels in boiler with retort burner
Publication -
Characterization of the Physical, Chemical, and Adsorption Properties of Coal-Fly-Ash–Hydroxyapatite Composites
Publication -
Effect of pyridine extraction on the pyrolysis of a perhydrous coal based on in-situ FTIR analysis
Publication -
Coal-derived conductive pavement for winter de-icing: prototype, modeling, and simulation
Publication -
Heavy Metals in Waters and Sediments of Rivers Affected by Brown Coal Mine Waters
Publication -
INTERNATIONAL JOURNAL OF COAL GEOLOGY
Journals -
International Journal of Coal Preparation and Utilization
Journals -
International Journal of Coal Science and Technology
Journals -
State of the art in the field of emission reduction of sulphur dioxide produced during coal combustion
PublicationThe need for clean coal technologies to reduce the adverse environmental impact of coal combustion products has been grounded. The article deals with information concerning present and future technologies, directed towards the struggle against air pollution by SO2, produced during coal combustion. Their classification and critical rating from economical and technological points of views (including those developed by authors) have...
-
Waste management in the mining industry of metals ores, coal, oil and natural gas - A review
PublicationWaste generated due to mining activity poses a serious issue due to the large amounts generated, even up to 65 billion tons per year, and is often associated with the risk posed by its storage and environmental management. This work aims to review waste management in the mining industry of metals ores, coal, oil and natural gas. It includes an analysis and discussion on the possibilities for reuse of certain types of wastes generated...
-
Effect of slag coal ash and foamed glass on the mechanical properties of two-stage concrete
PublicationTwo-stage concrete (TSC) is known by various names such as colcrete, Polcrete, preplaced aggregate concrete and prepacked concrete. It is different from traditional concrete in two fundamental ways, namely method of construction and mix proportion. Two-stage concrete (TSC) is defined as firstly, coarse aggregates are placed into the formwork and grout is applied to fill in the between coarse aggregate particles voids. Secondly,...
-
Use of Bioluminescence for Monitoring Brown Coal Mine Waters from Deep and Surface Drainage
Publication -
The Evaluation of Quality of the Co-Firing Process of Glycerine Fraction with Coal in the High Power Boiler
Publication -
Influence of hydrothermal treatment on selenium emission-reduction and transformation from low-ranked coal
Publication -
Large-scale Rowe cell experimental study on coefficient of consolidation of coal mine tailings
Publication -
CO2 capture enhancement by metal oxides impregnated coal fly ash: a breakthrough adsorption study
PublicationCoal fired power plants are significant contributors to CO2 emissions and produce solid waste in the form of coal fly ash, posing severe environmental challenges. This study explores the application of dry-impregnated coal fly ash for CO2 capture from gas stream. The modification of coal fly ash was achieved using alkaline earth metal oxides, specifically CaO and MgO, to alter its physical and chemical properties. Characterization...
-
CO2 capture enhancement by metal oxides impregnated coal fly ash: a breakthrough adsorption study
Publication -
Establishment, Growth, and Yield Potential of the Perennial Grass Miscanthus × Giganteus on Degraded Coal Mine Soils
Publication -
International Journal of Oil Gas and Coal Technology
Journals -
Meitan Xuebao/Journal of the China Coal Society
Journals -
Meitiandizhi Yu Kantan/Coal Geology and Exploration
Journals -
Planning Recreation around Water Bodies in Two Hard Coal Post-Mining Areas in Southern Poland
Publication -
Identification of the featured-element in fine road dust of cities with coal contamination by geochemical investigation and isotopic monitoring
Publication -
The Turów coal mine international dispute as a determinant of the cross-border integration of inhabitants of the Polish-Czech border
Publication -
Sustainable recovery of plant essential Nitrogen and Phosphorus from human urine using industrial coal fly ash
PublicationCoal-based thermal power plants play a pivotal role in meeting global energy demand. The amount of fly ash generated from these plants increases every year, and its successful use has posed a significant environmental risk in the last decade. In this study, coal fly ash was packed in a fixed-bed adsorption column to remove Urea–N from synthetic human urine. To assess the efficacy of fly ash in the removal of Nitrogen, various process...
-
The Balance of Outlays and Effects of Restructuring Hard Coal Mining Companies in Terms of Energy Policy of Poland PEP 2040
Publication -
Cost of Equity of Coal-Fired Power Generation Projects in Poland: Its Importance for the Management of Decision-Making Process
Publication -
Average annual prices of coal and fuels in Poland in 2004-2021
Open Research DataThe dataset contains information on average prices of coal and fuels (PB95 petrol, diesel oil and LPG). Prices were averaged within each of the years studied. The dataset includes prices in individual years in the period from 2004 to 2021.
-
Petroleum and Coal
Journals -
Modelling Long‐Term Transition from Coal‐Reliant to Low‐Emission Power Grid and District Heating Systems in Poland
PublicationEnergy systems require technological changes towards climate neutrality. In Poland, where the power system is dominated by outdated coal-fired power plants, efforts to minimize the environmental impact are associated with high costs. Therefore, optimal paths for the development of the energy sector should be sought in order to achieve ambitious long-term strategic goals, while minimizing the negative impact on the consumers’ home...