Advanced Power Plant Materials, Design and Technology by D. Roddy (Eds.)

By D. Roddy (Eds.)

Fossil-fuel energy vegetation account for almost all of globally strength iteration. expanding international power calls for, coupled with problems with growing old and inefficient strength vegetation, have resulted in new strength plant development programmes. As more cost-effective fossil gas assets are exhausted and emissions standards are tightened, utilities are turning to energy vegetation designed with functionality in brain to meet standards for better potential, potency, and environmental characteristics.

Advanced energy plant fabrics, layout and know-how presents a entire reference at the cutting-edge of gas-fired and coal-fired energy crops, their significant elements and function development techniques. half one significantly experiences complex energy plant designs which goal either greater potency and versatile operation, together with reports of mixed cycle know-how and fabrics functionality issues.

Part experiences significant plant elements for more advantageous operation, together with complicated membrane know-how for either hydrogen (H2) and carbon dioxide (CO2) separation, in addition to flue gasoline dealing with applied sciences for stronger emissions keep watch over of sulphur oxides (SOx), nitrogen oxides (NOx), mercury, ash and particulates. The part concludes with insurance of high-temperature sensors, and tracking and keep watch over know-how which are necessary to strength plant operation and function optimisation.

Part 3 starts with assurance of low-rank coal upgrading and biomass source utilisation for more desirable energy plant gas flexibility. Routes to enhance the environmental impression also are reviewed, with chapters detailing the combination of underground coal gasification and the applying of carbon dioxide (CO2) trap and garage. eventually, more desirable iteration functionality is reviewed with assurance of syngas and hydrogen (H2) construction from fossil-fuel feedstocks.

With its wonderful foreign crew of members, complex strength plant fabrics, layout and know-how is a typical reference for all energy plant engineers and operators, in addition to to teachers and researchers during this field.

  • Provides a finished reference at the cutting-edge gas-fired and coal-fired energy vegetation, their significant parts and function development options
  • Examines significant plant parts for greater operation in addition to flue fuel dealing with applied sciences for greater emissions control
  • Routes to enhance environmental impression are mentioned with chapters detailing the combination of underground coal gasification

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Extra resources for Advanced Power Plant Materials, Design and Technology

Example text

On the other hand, the clean fuels required by a combined cycle are significantly more expensive when compared to fuels such as coal and biomass that can be directly combusted in a boiler. Included in this chapter are a discussion of types of gas turbines for combined-cycle applications, types of steam cycles in combined-cycle plant, plant design and technology, fuel specifications, control technologies for criteria pollutants as well as for CO2 emissions, and limitations of gas-fired combined-cycle plants.

Combined cycles come in a variety of sizes depending on the size and number of gas turbines utilized. Combined cycle sizes may range from less than 10 MW to in excess of 500 MW when using a single General Electric H class 50 cycle gas turbine. 1 Types of gas turbines for combined-cycle applications The optimum pressure ratio for a gas turbine in combined-cycle applications is much lower than that required for peak thermal efficiency of a simplecycle gas turbine. e. adiabatic compression and expansion, and near constant pressure heat addition in the combustor (Cengel and Boles, 1998).

An issue associated with utilizing a fuel with a heating value that is much lower than what a gas turbine is designed for is that the gas turbine compressor pressure ratio can increase due to a significantly larger mass (associated with the fuel) flowing through the turbine. This can cause compressor surge and damage. Possible solutions could be to close inlet guide vanes to limit the amount of air entering the engine and/or to extract air from compressor discharge if there is use for such pressurized air and if the engine can be modified for this capability.

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