coal fire Articles

  • 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 ...


    By Inderscience Publishers

  • 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 ...

  • 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 ...

  • 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 ...


    By Vose Software

  • 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 ...


    By Inderscience Publishers

  • 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 ...

  • 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 ...


    By Inderscience Publishers

  • 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 ...


    By Earth Policy Institute

  • Beyond Coal; Optimization for Oil & Gas Units

    While coal reigns supreme among fossil-fuels for electricity production in North America, there are also substantial numbers of natural gas and oil-fired generating units. On one hand high fuel prices relative to coal can make it more difficult to cost-effectively operate these units; on the other, pressure to increase the capacity factors of these units will likely intensify in order to reduce ...


    By NeuCo, Inc.

  • U.S. Signals the end of public money for coal-fired power

    U.S. public financing for overseas coal-fired power is likely coming to an end. That’s the clear signal from the U.S. Department of Treasury’s announcement earlier this month. The Treasury Department provided new guidance for multi-lateral development banks’ ...

  • 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 ...


    By John Wiley & Sons, Ltd.

  • 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. ...


    By Earth Policy Institute

  • China slowly cleaning up its act

    China’s coal-driven economy has become the largest emitter of CO2 in the world. This is not about to change any time soon, though high prices, blackouts, mine-accidents and pollution all contribute to a drive towards cleaner alternatives, including cleaner coal technologies. In Shanxi province, in the north of China, coal is so abundant that in large areas it covers the surface of the ground. The ...

  • Utilisation of waste coal dust of steel industry for power generation

    The present paper describes the generation of waste coal-dust from steel industry and its utilisation for generation of power in power plant. The main objective of the work is to utilise the heat energy of coal dust into useful work and propose a combination of coal and coal dust supplying system to the boiler. The work started with the collection and analysis of the coal dust. The physical ...


    By Inderscience Publishers

  • 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 ...


    By Inderscience Publishers

  • Techno-economic evaluation of revamping of coal-fired power plants in India

    A techno-economic feasibility study has been conducted to investigate the revamping of two 32 MWe Pulverised-Coal (PC) boilers with a number of firing options. The options investigated were: (1) conventional PC revamping, (2) replacement with a new PC boiler, (3) PC to Circulating Fluidised Bed (CFB) revamping, (4) replacement with a new CFB boiler, and (5) Bubbling Fluidised Bed (BFB) revamping. ...


    By Inderscience Publishers

  • Taonan case study

    Working to decarbonise China's energy future Located in Taonan, Jilin Province, north east China, this 49.3 MW grid connected wind farm demonstrates the economic viability of wind power technology in a region where, until now, it has been seen as marginal. The project generates over 100,000 MWh of electricity per annum, and delivers greenhouse gas emission reductions equal to 92,508 tCO2e ...


    By Camco Clean Energy Company

  • Australian electricity supply: orientations to growth and prospects for sustainability

    In the new competitive order, Australian electricity systems have been oriented to growth of electricity sales based on low margins and the capture of market share. Electricity is a premium fuel. The second law of thermodynamics testifies to this, as does the relationship between coal-fired electricity and the negative externality of greenhouse warming. Electricity prices should reflect its ...


    By Inderscience Publishers

  • Danfoss VLT® 8000 improves reliability at power station

    Cockenzie, a 1200 MW coal-fired power station,  employs slurry pumps to convey the coal ash and fly ash. The hydraulic drive units and gearboxes  were a problem due to high maintenance cost. The easiest answer, frequency converter driven motor, directly coupled to the slurry pump. The system runs for up to 16 hours per day, also with a 38% reduction in energy ...

  • Assessing and improving the efficiencies of a steam power plant using exergy analysis. Part 1: assessment

    Energy and exergy analyses are used to examine the performance of a coal-fired steam power plant and to identify and evaluate possible modifications to improve the efficiency of the plant. The exergy analysis provides a detailed breakdown of the exergy losses (including waste exergy emissions and internal irreversibilities) for the overall plant and its components. The results show that ...


    By Inderscience Publishers

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