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    TEMPERATURE MEASURING APPARATUS
    1.
    发明专利
    TEMPERATURE MEASURING APPARATUS 失效

    公开(公告)号：JPH1082701A

    公开(公告)日：1998-03-31

    申请号：JP19389497

    申请日：1997-07-18

    Applicant: ABB RESEARCH LTD

    Inventor： HAFFNER KEN-YVES ,  HOEBEL MATTHIAS DR

    IPC: G01K13/00 ,  F02C9/00 ,  F23N5/08 ,  G01J5/00 ,  G01J5/02

    Abstract: PROBLEM TO BE SOLVED: To realize a quick and accurate measurement of temperature without giving a bad effect to the flame, by disposing optical measuring sensors immediately on the upstream side from a flame front in the premixing region of a burner while directing in parallel and/or coaxially with a fuel flow being introduced into a gas turbine burner. SOLUTION: A burner 1 and a fuel line 4 coupled therewith are provided with a measuring sensor 7. The measuring sensor 7 is fixed to a premixing region 3 substantially in parallel with the direction 5 of a fuel flow or disposed in the center of the fuel line 4. The measuring sensors 7 are directed toward all flame front 8. Numerical aperture of the measuring sensors 7 is set such that a conical observation capacity including a flame front region essential for combustion process is opened and the flame front 8 is observed from the upstream side. Even if the flame 8 vibrates in a plane perpendicular to the flow direction 5 due to thermoacoustic vibration of a burner, it has substantially no effect on the optical temperature measurement.

    Temperature measurement process
    2.
    发明专利
    Temperature measurement process 未知

    公开(公告)号：GB2330906A

    公开(公告)日：1999-05-05

    申请号：GB9902904

    申请日：1997-06-24

    Applicant: ABB RESEARCH LTD

    Inventor： HAFFNER KEN-YVES ,  HOEBEL MATTHIAS

    IPC: G01J5/00 ,  G01N21/76

    Abstract: In a temperature measurement process for determining the adiabatic temperature of a flame, in particular in a gas turbine combustion chamber, the chimioluminescent radiation emitted by the OH and/or CH radicals in the flame is sensed by a spectrograph by means of an optical fibre. The spectrally resolved raw signal from the chimioluminescent radiation is then corrected and compared with a plurality of theoretically determined emission spectra until a theoretical emission spectrum matches the chimioluminescent spectrum. The Boltzmann temperature which corresponds to said matching emission spectrum is then associated to the chimioluminescent spectrum and the adiabatic flame temperature is derived from the Boltzmann temperature by correlation.

    3.
    发明专利
    未知

    公开(公告)号：DE19632174A1

    公开(公告)日：1998-02-12

    申请号：DE19632174

    申请日：1996-08-09

    Applicant: ABB RESEARCH LTD

    Inventor： HAFFNER KEN-YVES ,  HOEBEL MATTHIAS DR

    IPC: G01J5/00 ,  G01K11/20 ,  G01J3/443 ,  G01J3/457

    Abstract: In a temperature measurement process for determining the adiabatic temperature of a flame, in particular in a gas turbine combustion chamber, the chimioluminescent radiation emitted by the OH and/or CH radicals in the flame is sensed by a spectrograph by means of an optical fibre. The spectrally resolved raw signal from the chimioluminescent radiation is then corrected and compared with a plurality of theoretically determined emission spectra until a theoretical emission spectrum matches the chimioluminescent spectrum. The Boltzmann temperature which corresponds to said matching emission spectrum is then associated to the chimioluminescent spectrum and the adiabatic flame temperature is derived from the Boltzmann temperature by correlation.

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