Mine emissions reduction installations

Ostrowski, P.; Pronobis, Marek; Remiorz, Leszek

doi:10.1016/j.applthermaleng.2015.03.061

Cited by 16 publications

(6 citation statements)

References 5 publications

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“…A decrease in desalination costs can be achieved by utilizing the methane collected at the site to power the desalination plant. In Polish mines, a single shaft emits between 270,000 and 1,400,000 m 3 n/h of an air–methane mixture, usually with a safe methane concentration in ventilation air of less than 0.7%, which corresponds to a power of 18.7 MW–96.9 MW lost to the environment [ 45 ]. Methane is a more potent greenhouse gas than carbon dioxide, so there is increased pressure to capture it instead of simply emitting methane into the atmosphere.…”

Section: Prospects For Future Improvementmentioning

confidence: 99%

“…Methane capture already exists in Polish coal mines; for instance, in 2017, 19,927.9 thousand m 3 of methane was captured at the Budryk mine, of which 11,825.9 thousand m 3 (59%) was utilized [ 46 ]. Ostrowski et al [ 45 , 47 ] proposed a thermal-based desalination system, powered either by captured methane or a mixture of captured methane and hard coal, to generate salt and demineralized water out of coal mine water with a salinity of 12.6 g/L. One could expect that applying the reverse osmosis or NF–RO powered by the electricity generated by captured methane might be beneficial to the proposed technology, as pressure-driven membrane methods are generally less energy-consuming than thermal methods in the tested feed salinity range.…”

Section: Prospects For Future Improvementmentioning

confidence: 99%

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Membrane-Based Solutions for the Polish Coal Mining Industry

Mitko

Turek

2021

Membranes

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Poland still relies largely on coal for energy generation, which creates environmental problems connected to the mining process, particularly the issue of saline waste water discharge. Membrane-based zero liquid discharge systems can be employed to recover important resources from coal mine waste waters, such as demineralized water, salt, magnesium hydroxide, and gypsum. In this paper, we present a historical overview of proposed membrane-based solutions for the Polish coal mining industry and discuss possible further areas of research.

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Section: Prospects For Future Improvementmentioning

confidence: 99%

Section: Prospects For Future Improvementmentioning

confidence: 99%

Membrane-Based Solutions for the Polish Coal Mining Industry

Mitko

Turek

2021

Membranes

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“…The second most popular type of energy devices are the so-called grate boilers, in which coal is burned on various types of grates, used mainly for heating purposes and steam generation in various types of energy lines. The study analyses the issue of optimizing coal combustion with regard to grate heating boilers [3].…”

Section: Introductionmentioning

confidence: 99%

Selected Aspects of Combustion Optimization of Coal in Power Plants

et al. 2020

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Growing ecological standards force the implementation of solutions that will contribute to reducing greenhouse gas (GHG) emissions to the atmosphere. This is particularly important in Poland, whose energy system is almost 80% based on coal. In the interest of low carbon development it is worth considering the optimization of existing old coal-based power plants. The main goal of the research was to present the benefits of modernization of existing boiler equipment and to analyze the combustion process of various types of coal sorts that have a significant impact on the optimization of the production processes of energy media. An analysis of the processes occurring in boiler devices during the combustion of fuel was carried out, which had a significant impact on the quality of generated heat and electricity. The conducted research defined technological solutions for boiler structures that have a significant impact on improving the efficiency of the technological process in heating plants and the characteristics of coal as energy fuel. Practical technical and modernization solutions have been proposed that contribute to the optimization of coal combustion processes, resulting in increased energy efficiency of the heating plant.

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“…Rising energy costs and environmental considerations are driving industry for renewable energy use [1], major gains can be made by increasing the efficiency of energy utilization, i.e. recovering low-grade waste heat [2], improving process efficiency [3], or utilizing thermal energy [4].…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of pressure drop models during flow boiling of R134a – effect of flow acceleration and entrainment

2018

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A crucial step to assure proficient work of power and process apparatus is their proper design. A wide array of those devices operates within boiling or condensation of the working fluid to benefit from high heat transfer rates. Two-phase flows are associated with high heat transfer coefficients because of the latent heat of evaporation and high turbulence level between the liquid and the solid surface. Predicting heat transfer coefficient and pressure drop is a challenging task, and has been pursued by researchers for decades. In the case of diabatic flows, the total pressure drop is due to the change in kinetic and potential energy. The article presents detailed boiling pressure drops data for R134a at a saturation temperature of 19.4°C. Study cases have been set for a mass flux varying from 300 to 500 kg/m2s. Presented data along with the data reduction procedure was used to obtain the momentum pressure drop values during flow boiling. The study focuses on experimental values of momentum pressure drop component and its prediction based on various void fraction models and entrainment effects.

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Mine emissions reduction installations

Cited by 16 publications

References 5 publications

Membrane-Based Solutions for the Polish Coal Mining Industry

Membrane-Based Solutions for the Polish Coal Mining Industry

Selected Aspects of Combustion Optimization of Coal in Power Plants

Experimental validation of pressure drop models during flow boiling of R134a – effect of flow acceleration and entrainment

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