coal firing Articles
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A long year in the life of the US coal industry
With concerns about climate change mounting, the era of coal-fired electricity generation in the United States may be coming to a close. In early 2007, a US Department of Energy report listed 151 coal-fired power plants in the planning stages in the United States. But during 2007, 59 proposed plants were either refused licenses by state governments or quietly abandoned. In addition, close to 50 ...
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Flame Detection System Revamp on Tiny Oil Guns in a T-fired Boiler - Case Study
Heshan Power Station, China. 1 x 300MW Tangential Coal-Fired Boiler. Boiler supplied by Dongfang Boiler Group Co., Ltd. (China). 4 x Tiny Oil Guns, each monitored by an imaging ...
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Low-volatile coal combustion technologies in Vietnam: issues and strategies
Vietnam has planned to install a number of coal-fired power plants with unit's capacity of up to 600 MW. Present experience shows that available low volatile anthracite coal is difficult to burn in the PC fired boilers. In this paper, the CFB combustion technology is proposed based on the experiences of coal-fired power plants around the world used similar coal characteristics. Later, a ...
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High Accuracy Temperature Profilingon Tangential Boiler - Case Study
Dongshen Power Station, China. 1 x 300MW Tangential Coal-Fired Boiler. Boiler supplied by Shanghai Boiler Works (China). 12 Oil igniters, 20 Main oil burners, 12 Observation Ports were used to view inside the ...
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Igniter System Upgrade on Wall-fired and T-fired Boilers - Case Study
Carbon II, Mexico. 2 x 350 MW Front-Fired and 2 x 350 MW Tangential Coal-fired Power Station. Boiler supplied by Mitsubishi/Foster Wheeler. 20 x Heavy Oil igniters on each ...
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Tips for turning a coal fired boiler to gas fired boilers
Smog has been a heated topic among the word. Therefore , gas fired boiler substitute for coal fired boiler become a trend to protect the environment.Since the boiler is a large thermal equipment ,it is requires attention to security incidents in the transformation .Here are some tip from ZG about turning a coal fired boiler to gas fired boiler. First , when turning a coal fired boiler to gas ...
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Power station planned outages - Case Study
Luminant is a Texas-based electric utility. Luminant's operations include electricity generation and wholesaling, mining, construction, and development. Luminant wished to find a method that would optimize the maintenance and upgrade schedule for its fleet of coal-fired power units to maximize its ability to meet its delivery obligations and its ability to benefit from high seasonal spot ...
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Analysis of U.S. coal plant retirements case study
In 2010, MJB&A completed a report for a major natural gas transmission company of coal-fired electricity generating units (EGUs) in several different geographic regions and their potential for retirement and/or to repower with natural gas. This analysis developed an indicative model of future coal-fired power plant repowerings and retirements based on a range of operational and market ...
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Closing the door on building new coal-fired power plants in America
Community opposition, legal challenges, and financial uncertainty over future carbon costs are prompting companies to rethink their plans for coal. Since the beginning of 2007, 95 proposed coal-fired power plants have been cancelled or postponed in the United States--59 in 2007, 24 in 2008, and at least 12 in the first three months of 2009. This covers nearly half of the 200 or so U.S. coal-fired ...
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Technical and economic studies on the optimisation of prospective coal-fired power stations
The paper considers problems of choosing rational parameters of thermal power plants on fossil fuel. A technique for comparison of the energy and economic efficiency of prospective coal-fired power plants is described. The optimisation results of parameters of combined-cycle plants with coal gasification at low and high-temperature levels and steam turbine plants on supercritical steam parameters ...
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Exergoeconomic analysis of a Kalina cycle coupled coal–fired steam power plant
This paper presents exergoeconomic analysis of a Kalina cycle coupled coal–fired steam power plant using specific exergy costing (SPECO) methodology. Cost–balance and auxiliary equations are developed and solved. The results indicate that in the topping cycle, the boiler and the turbine contribute maximum to the formation of product cost. High value of exergoeconomic factor for the boiler ...
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What is the future of King Coal in China?
When it comes to coal consumption, no other nation comes close to China. The country reigns as the world’s largest coal user, burning almost half of the global total each year. About 70 percent of China’s total energy consumption and nearly 80 percent of its electricity production come from coal, and its recent shift from being a historical net coal exporter to the world’s ...
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Majority of China’s proposed coal-fired power plants located in water-stressed regions
To maintain its economic growth and provide for its massive population, China must reconcile two powerful, converging trends: energy demand and resource scarcity. One prime example of this tension is the country’s coal use and water supply. According to a new WRI analysis, more than half of China’s proposed coal-fired power plants are slated to be built in areas of high or extremely ...
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Coal-fired power on the way out?
The past two years have witnessed the emergence of a powerful movement opposing the construction of new coal-fired power plants in the United States. Initially led by environmental groups, both national and local, it has since been joined by prominent national political leaders and many state governors. The principal reason for opposing coal plants is that they are changing the earth’s climate. ...
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Project - Oltenia Energy Complex, Romania
High-Pressure Boiler Water Treatment Oltenia Energy Complex is the biggest integrated group of mine and coal-fired power plants in Romania with a total power of 3900 MW spread across 4 power plants, operating mostly with high pressure boilers. 12 power units x 1020 t/h 220 bar 540°C ...
By Fineamin SA
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Methylmercury in mosquitoes around a large coal‐fired power plant in Central Ohio
Emissions from coal‐fired power plants are the major anthropogenic source of mercury (Hg) in the environment. Because emitted Hg can be deposited near the source, concerns arise about the effects of coal‐burning facilities on levels of toxic methylmercury (MeHg) in biota near such sources. We investigated the potential impact of a large Hg‐emitting (450 kg in 2005) coal‐fired power station in ...
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New global assessment reveals nearly 1,200 proposed coal-fired power plants
Coal-fired power plants are a major source of greenhouse gas emissions—one that could be increasing significantly globally, according to new analysis from the World Resources Institute. Several months ago, WRI began compiling and analyzing information about proposed new coal-fired plants in order to assess potential future risks to the global climate. We released our findings today in the ...
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Assessing and improving the efficiencies of a steam power plant using exergy analysis. Part 2: improvements from modifying reheat pressure
The effect of increasing reheat pressure on the exergy efficiency of a coal-fired steam power plant is investigated. The results show that although the irreversibility rate associated with heat transfer in the steam generator decreases as reheat pressure increases, the overall-plant exergy efficiency decreases, mainly owing to the relatively large decrease in shaft power output. The results ...
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Biomass Ready Coal Fired Plants and Massive Tree Planting will be the Compromise Climate Change Solution
Coal provided 26 percent of the additional power generation last year and 38 percent of all generation. There are 500,000 MW of new coal fired generation in the planning stage. This is more than was ever installed in the Americas and Europe. So any programs to reduce coal fired generation on these two continents to zero would eliminate less than is being added elsewhere in the world. The ...
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Fossil and Nuclear Power Generation: World Analysis and Forecast Report
This report formerly covered just coal-fired boilers but now includes nuclear, gas and oil power generation forecasts. Capacity projections for each country of the world are continually revised and displayed. Comprehensive analyses reveal the environmental demand, political and other factors providing the basis of the forecast. Monthly Updates have specific geographic, technological, regulatory, ...
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