Supplemental Firing

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Stanley J Miller - One of the best experts on this subject based on the ideXlab platform.

  • impact of Supplemental Firing of tire derived fuel tdf on mercury species and mercury capture with the advanced hybrid filter in a western subbituminous coal flue gas
    Energy & Fuels, 2006
    Co-Authors: Ye Zhuang, Stanley J Miller
    Abstract:

    Pilot-scale experimental studies were carried out to evaluate the impacts of coFiring tire-derived fuel and a western subbituminous coal on mercury species in flue gas. Mercury samples were collected at the inlet and outlet of the Advanced Hybrid filter to determine mercury concentrations in the flue gas with and without TDF coFiring, respectively. CoFiring of TDF with a subbituminous coal had a significant effect on mercury speciation in the flue gas. With 100% coal Firing, there was only 16.8% oxidized mercury in the flue gas compared to 47.7% when 5% TDF (mass basis) was fired and 84.8% when 10% TDF was cofired. The significantly enhanced mercury oxidation may be the result of additional homogeneous gas reactions between Hg0 and the reactive chlorine generated in the TDF-coFiring flue gas and the in situ improved reactivity of unburned carbon in ash by the reactive chlorine species. Although the coFiring of TDF demonstrated limited improvement on mercury-emission control with the Advanced Hybrid filter...

Sinopec Ningbo - One of the best experts on this subject based on the ideXlab platform.

Ph. Mathieu - One of the best experts on this subject based on the ideXlab platform.

  • Part-load operation of combined cycle plants with and without supplementary Firing
    Journal of Engineering for Gas Turbines and Power-transactions of The Asme, 1995
    Co-Authors: P. J. Dechamps, N. Pirard, Ph. Mathieu
    Abstract:

    The design point performance of combined cycle power plants has been steadily increasing, because of improvements both in the gas turbine technology and in the heat recovery technology, with multiple pressure heat recovery steam generators. The concern remains, however, that combined cycle power plants, like all installations based on gas turbines, have a rapid performance degradation when the load is reduced. In particular, it is well known that the efficiency degradation of a combined cycle is more rapid than that of a classical steam plant. This paper describes a methodology that can be used to evaluate the part-load performances of combined cycle units. Some examples are presented and discussed, covering multiple pressure arrangements, incorporating Supplemental Firing and possibly reheat. Some emphasis is put on the additional flexibility offered by the use of Supplemental Firing, in conjunction with schemes comprising more than one gas turbine per steam turbine. The influence of the gas turbine controls, like the use of variable inlet guide vanes in the compressor control, is also discussed.

Ye Zhuang - One of the best experts on this subject based on the ideXlab platform.

  • impact of Supplemental Firing of tire derived fuel tdf on mercury species and mercury capture with the advanced hybrid filter in a western subbituminous coal flue gas
    Energy & Fuels, 2006
    Co-Authors: Ye Zhuang, Stanley J Miller
    Abstract:

    Pilot-scale experimental studies were carried out to evaluate the impacts of coFiring tire-derived fuel and a western subbituminous coal on mercury species in flue gas. Mercury samples were collected at the inlet and outlet of the Advanced Hybrid filter to determine mercury concentrations in the flue gas with and without TDF coFiring, respectively. CoFiring of TDF with a subbituminous coal had a significant effect on mercury speciation in the flue gas. With 100% coal Firing, there was only 16.8% oxidized mercury in the flue gas compared to 47.7% when 5% TDF (mass basis) was fired and 84.8% when 10% TDF was cofired. The significantly enhanced mercury oxidation may be the result of additional homogeneous gas reactions between Hg0 and the reactive chlorine generated in the TDF-coFiring flue gas and the in situ improved reactivity of unburned carbon in ash by the reactive chlorine species. Although the coFiring of TDF demonstrated limited improvement on mercury-emission control with the Advanced Hybrid filter...

P. J. Dechamps - One of the best experts on this subject based on the ideXlab platform.

  • Part-load operation of combined cycle plants with and without supplementary Firing
    Journal of Engineering for Gas Turbines and Power-transactions of The Asme, 1995
    Co-Authors: P. J. Dechamps, N. Pirard, Ph. Mathieu
    Abstract:

    The design point performance of combined cycle power plants has been steadily increasing, because of improvements both in the gas turbine technology and in the heat recovery technology, with multiple pressure heat recovery steam generators. The concern remains, however, that combined cycle power plants, like all installations based on gas turbines, have a rapid performance degradation when the load is reduced. In particular, it is well known that the efficiency degradation of a combined cycle is more rapid than that of a classical steam plant. This paper describes a methodology that can be used to evaluate the part-load performances of combined cycle units. Some examples are presented and discussed, covering multiple pressure arrangements, incorporating Supplemental Firing and possibly reheat. Some emphasis is put on the additional flexibility offered by the use of Supplemental Firing, in conjunction with schemes comprising more than one gas turbine per steam turbine. The influence of the gas turbine controls, like the use of variable inlet guide vanes in the compressor control, is also discussed.