coal energy Articles
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Energy recovery from waste by use of fluidized-bed technology
Revolving type fluidized-bed technology, developed by Ebara Corp., is installed in more than 100 facilities worldwide. The technology is applied for waste, coal and in situations where a conventional fluidized bed is difficult to use. Waste and/or coal can be treated and valuable energy can be recovered from a non-renewable source. This paper describes the application of the revolving fluidized ...
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Energy recovery from waste by use of fluidised-bed technology
Revolving type fluidised-bed technology, developed by Ebara Corp., is installed in more than 100 facilities worldwide. The technology is applied for waste, coal and in situations where a conventional fluidized bed is difficult to use. Waste and/or coal can be treated and valuable energy can be recovered from a non-renewable source. This paper describes the application of the revolving fluidised ...
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Assessment of severe accident risks in the Chinese coal chain
Severe accident risks in China's coal chain were investigated in detail based on extensive statistics using Chinese sources that were not open until recently. Every year about 6000 fatalities occur in Chinese coal mines; about one third due to severe (≥ five fatalities) accidents. The Chinese severe accident fatality rate for the coal chain is 6.17 per GWeyr, which is about 10 times higher than ...
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Factoring energy security into Australian foreign and trade policy: Has luck run out?
When energy prices rose dramatically in the 1970s, the impact on Australia was cushioned by two developments: the timely discovery of domestic oil in Bass Strait; and of the Japanese conversion to thermal coal. With falling oil imports and expanding coal exports, Australia emerged as a net energy exporter. But both these forms of good luck are now running out ? and at a time when free market ...
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Planning the future of Botswana's coal
Botswana has vast proven deposits of steam coal, which, for a long time, the government has wanted to develop but without much success. The main objectives of this study are: to forecast possible coal exports from Botswana and the land routes for these exports; to determine the competitiveness of Botswana's coal in world steam coal trade; to make recommendations on the appropriate policy for the ...
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Coal sorption characteristics and coal surface tension
Underground coal mining in the Bulli Seam of Sydney Basin, Australia encounters the problems of coal and gas outburst as the coal contains high concentration of CO 2 , where certain parts of the seam have been found to be especially hard-to-drain. In order to better understand these problems, the influence of temperature and moisture on sorption capacity of bituminous coal was investigated at ...
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Prediction of demand trends of coking coal in China based on grey linear regression composition model
The scarce of coking coal resources in China results in its short supply. By establishing a grey linear regression composition model, this paper has greatly improved the inadequacy of grey system prediction model and regression analysis method in trend prediction and finished the prediction of demand trends of coking coal in China with this model. As result of the prediction, it is estimated that ...
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A global clean fossil scenario
In this article, a so-called Clean Fossil Scenario (CFS) [1], valid for the year 2050, based on a bottom-up demand analysis, is described. It is proposed to mitigate the rise of atmospheric CO2 concentrations by disposing of the CO2 in deep sea and in other reservoirs to limit its liberation to the air. The scenario is clean, because emissions to the environment are reduced drastically compared ...
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The influence of climate change considerations on energy policy: the case of Russia
To those working on climate change, it is obvious that energy policy should be influenced by climate change considerations. The question that this paper seeks to answer is, to what extent do they influence policy and what contribution can a careful analysis of the costs and benefits of climate change options have on the formulation of that policy? We seek to understand this by looking in some ...
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The Deutsches EnergieRohstoff-Zentrum Freiberg: advanced prospects for applied organic petrology, focused on the generation of coal based chemical products
The Deutsches EnergieRohstoff-Zentrum Freiberg (DER) is a strategic partnership between government, science and industry to develop innovative concepts and technologies for the peak and post oil era. Researchers and practitioners collaborate to develop technical innovations to make the energy sources coal and biomass sustainable and future-oriented. The centre addresses the issues of energy ...
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Prospects for nuclear energy in South Asia in the 21st century
The South Asian region is characterised by low per capita energy consumption. There are large differences in the region with regard to energy resource endowments. In the entire region one notices an excessive use of non-commercial energy. The region has significant hydro-potential, which needs to be fully exploited. There are possibilities for trade in energy in the region. India is the largest ...
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Renewable energy solutions: Necessity not choice
An elite gathering of Asia Utility firms speak out on the need to go Green. The Energy industry has become a key talking point globally. Renewable energy solutions are no longer optional but a necessity which must be embraced by all governments. Driven by China’s determination to reduce their dependence on coal energy and to look ahead to a more sustainable future, the recent NGU APAC summit ...
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Environmental impacts of integrating wind energy systems and supplemental energy generation and storage systems
Wind energy systems offer a promising alternative energy source due to the environmental, economic, and social benefits and, as a result, have garnered support for development and implementation. One of the major drawbacks of wind energy, however, is its variability due to the stochastic nature of wind, thus, supplemental energy generation or storage technologies are required. In this study, a ...
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Chemical exergy analysis of Afşin–Elbistan lignite and its effects on the thermal power plant exergy efficiency
In this study, the chemical exergy of low profile industrial lignite has been studied through a case study at the 1440 MW Afşin–Elbistan B lignite–fired power plant. Chemical exergy methods in the literature were applied to design lignite to investigate results on the exergy efficiency of the power plant for different power rates. The ASTM standard and well known methods have been compared by ...
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'Strong enterprise, weak government': energy policy making in China
China lacks a cohesive energy plan, but in light of its rapidly increasing energy consumption and low energy efficiency, it desperately needs one. Many different actors influence energy policy, with varying degrees of impact, as the methods of policy formulation are extremely ambiguous and fluid. Chinese energy policy has been characterised by bureaucratic overlap and competition, while free ...
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The Deutsches EnergieRohstoff–Zentrum Freiberg: advanced prospects for applied organic petrology, focused on the generation of coal based chemical products
The Deutsches EnergieRohstoff–Zentrum Freiberg (DER) is a strategic partnership between government, science and industry to develop innovative concepts and technologies for the peak and post oil era. Researchers and practitioners collaborate to develop technical innovations to make the energy sources coal and biomass sustainable and future–oriented. The centre addresses the issues of energy ...
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Comparison of employment potential of the coal and wind power industries
Australia, one of the world's largest producers of coal, is used as a case study to compare the employment potential in the coal and wind power electricity generation industries. It is revealed that, as a result of automation, employment in the coal mining industry fell by 45% between 1987 and 2002. Moreover, as a result of the restructuring of the electricity industry as a whole, employment in ...
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Energetic and exergetic performance assessment of some coals in Turkey for gasification process
This paper undertakes a study on energetic and exergetic performance evaluation of various types of coals in Turkey, such as Armutcuk, Amasra, Zonguldak and Catalagzy hard coals and Tuncbilek, Beypazari, Cayirhan, Afsin, Soma, Yatagan, Can and Sorgun lignites for gasification purposes, where syn-gas may subsequently be used for the production of electricity, heat, hydrogen, etc. in industry. The ...
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A half century of US federal government energy incentives: value, distribution, and policy implications
This paper presents the most comprehensive estimates yet developed of US federal government energy subsidies and incentives over the past 50 years – $644 billion. It shows that the federal government has subsidised the energy industries – nuclear, coal, oil, natural gas, renewables – using different budget and off-budget funding techniques. It questions the common perception that federal energy ...
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How does this solid recovered fuel (SRF) preparation system save millions
Cement is a traditional industry with high energy consumption. Fuel and power costs account for over 50% of cement production costs. Because coal prices have nearly tripled since 2021, the fuel costs for cement plants have also increased, forcing the industry to raise cement prices to maintain profits. One cement plant client used the SRF preparation system for industrial solid waste developed by ...
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