coal combustion Articles

  • Is `clean` coal possible?

    VANCOUVER, April 18, 2007 (GLOBE-Net) - Coal is the world’s most commonly used fuel to produce electrical energy, and will continue as such for some time. Yet it is one of the ’dirtiest’ of all fossil fuels. It is a major source of toxic air pollutants and the leading source of energy-related greenhouse gas emissions. Many believe ’clean coal’ technologies will improve the energy efficiency of ...


    By GLOBE SERIES

  • Experience on coal reburn in a utility boiler

    Reburning is an in-furnace combustion modification technology for the reduction of NOx. By staging the introduction of the fuel, an environment is created where NOx generated by the combustion of the main fuel supply is subsequently consumed by the hydrocarbon radicals arising from the reburn fuel under reducing conditions. ENEL has retrofitted unit No. 4 of Vado ...


    By Inderscience Publishers

  • Cleaning of Dukki (Baluchistan) coal by oil agglomeration process

    Cleaning of coal fines by oil agglomeration is an efficient technique by which an appreciable recovery of combustible matter and significant reduction in ash forming minerals are possible. In this study, oil agglomeration process has been employed to clean indigenous coal under the influence of parameters such as oil type, particle size and the pH value of aqueous medium. As agglomerant, castor ...


    By Inderscience Publishers

  • Legal lookout: competing coal ash proposals

    Depending upon comments the EPA gathers, industry may have to or not have to close out their coal ash containment ponds within five years. On May 4, 2010, EPA issued its long-awaited proposal to manage coal ash – the byproduct of burning coal to generate power. The agency proposed two quite different approaches for regulating coal ash, somewhat to the consternation of critics, who had hoped ...


    By Bergeson & Campbell, P.C.

  • 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 ...

  • Thermochemical reactor design and thermal breakdown in middle-rank coals

    Experiments conducted at bench scale can throw new light on the operation of pilot and plant scale processes. In the coal gasification/combustion area, such experiments have ranged from determinations of coal reactivities for novel entrained-flow gasifiers, to investigating the fate of injectant coal during blast furnace operation. Meanwhile, the accurate mimicking of conditions within pilot and ...


    By Inderscience Publishers

  • Difficult Complex Decisions For Coal-fired Power Plant Operators

    Changing fuel prices, government regulations and technology all combine to make decision making difficult for operators and developers of coal-fired power generation facilities around the world. Power plant designers in developing countries face new local environmental regulations plus additional requirements stipulated by lenders such as the World Bank. In the developed world, the regulations ...


    By The McIlvaine Company

  • A new way to measure emissions from China’s Coal-Fired Power Plants

    To prevent the most severe impacts of climate change, it is essential to limit fossil fuel use—particularly coal use in power production. The share of coal in global energy consumption is increasing, with ...

  • Improving steam power plant efficiency through exergy analysis: effects of altering excess combustion air and stack-gas temperature

    Modifications are examined to increase coal-fired steam power plant efficiency by reducing irreversibilities in the steam generator, including decreasing the fraction of excess combustion air, and/or the stack-gas temperature. Overall-plant energy and exergy efficiencies both increase by 1.4% when the fraction of excess combustion air decreases from 0.4 to 0.15, and by 3.5% when the stack-gas ...


    By Inderscience Publishers

  • EPA targets electric utilities - the agency steps up efforts to manage coal ash damage

    Approximately 5.4 million cubic yards, or 1.1 billion gallons, of coal ash from the Tennessee Valley Authority (TVA) plant near Knoxville, Tenn., in December 2008 flooded some 300 acres of land, damaging property, polluting waterways, and killing fish. TVA will likely spend more than $500 million and perhaps as much as $1 billion dollars on the cleanup, says the U.S. Environmental Protection ...


    By Bergeson & Campbell, P.C.

  • Thermodynamic analysis of an integrated gasification combined cycle power plant: effect of nitrogen supply on system performance

    A comprehensive thermodynamic analysis of a conceptual integrated coal gasification combined cycle power plant is presented. Energy and exergy efficiencies and exergy destructions of each sub–unit are calculated. The effect of nitrogen, which is supplied from the Air Separation Unit (ASU) of the gasification unit to the combustion chamber of the gas turbine (GT) cycle, on system performance is ...


    By Inderscience Publishers

  • Focus Bioenergy No 5 2004: Peat - a domestic fuel with advantages

    Total peat volume in Sweden is estimated to 100 billion m2. However, a large part of these assets are situated in wetlands that are important for biodiversity. The total climate impact of peat depends on emissions at combustion, but also on whether the extraction causes considerable natural flows of greenhouse gases from the peat land to cease. Often the total climate im-pact is well below that ...


    By Elmia AB

  • E.ON Benelux power station Maasvlakte, Rotterdam - Case Study

    Next Generation Power Production E.ON’s new Maasvlakte power station also known as MPP3 is built in the harbour of the Dutch metropolis Rotterdam. The modern supercritical hard coal fired unit with a capacity of 1100 MW is expected to have a thermal efficiency of more than 46 percent. The new plant built in the vicinity of the existing Maasvlakte station is designed as cogeneration ...

  • Performance analysis of a single cylinder DI diesel engine using different biodiesel

    Biodiesel produced from cottonseed oil is quite a promising alternative fuel for diesel engines. Use of vegetable oils in diesel engines leads to slightly inferior performance and higher smoke emissions due to their high viscosity and carbon residue. But the performance of vegetable oils can be improved by modifying them through the transesterification process. The research work discusses the ...


    By Inderscience Publishers

  • Increasing the use of recovered mineral components in cement or concrete

    Section 6017(a) of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users, P.L. 109-59, Aug. 10, 2005 (SAFETEA-LU), directs the U.S. Environmental Protection Agency (EPA or the Agency) to, “…conduct a study to determine the extent to which procurement requirements, when fully implemented…may realize energy savings and environmental benefits attainable with ...

  • Storage is ‘missing link’ in modern CSP - Bob Stojanovic of ABB

    During CSP Today’s ‘Myth-busting Webinar’ for 1000 members of the CSP community, over 50 questions were posed in the interactive session from developers, EPCs and suppliers. This week, CSP Today posed 3 of the questions to Bob Stojanovic of ABB, one of the speakers from the webinar who contributed on the discussion on CSP bankability. [To download the full podcast ...


    By FCBI Energy

  • ZG chain grate biomass fired boiler in Pakistan

    The new chain grate boiler system with chain grate stocker permits a wide range of biomass fuels including Bagasse, crop stalk, mustard stalk, cotton stalk, rice husk, coffee grounds, de-oiled bran , wood waste , Coconut shell ,roasted chaff, lignite, paper sludge, coal,corn cob, spent grain with high ash contents to be combusted in an efficient manner with the added advantage of automatic ...


  • Pros and Cons of Fossil Fuels

    Used for centuries, fossil fuels have played a vital role in every individual’s life. It has been used for domestic and industrial purposes all across the world. Alike any other thing, it also has some advantages and disadvantages. Fossil fuels are the derivative of plant and animal fossils. As the name suggests, these are made from organic remains or decay of plants and animals. These ...


    By Jay Khodiyar Machine Tools

  • Biomass Pellet Fuel and Its Advantages

    With the continuous deterioration of the people's living environment, global warming topic has become a concern of people from all walks of people. It has been very important to the development of new energy. At present, our main fuel is oil and coal, these are non-renewable materials, and you'll never have again when we use them up. Therefore, many countries are in the research of new energy, ...


    By Allance Pellet Machinery

  • Advantages Of Using Briquettes Over Conventional Fuels

    Is there a renewable source of energy that can replace the conventional fuel? Is the source greener and cheaper as compared to other sources? Is it easy to use? So many different questions and a simple answer to all of them is ‘‘YES’’. A biomass briquette plant is an ideal replacement to the traditional types of fuel which are highly dangerous to the environment. The ...


    By Jay Khodiyar Machine Tools

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