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Support for Operation Strategy in CHP Plants With Gas Turbines

[+] Author Affiliations
Gerard Kosman, Tadeusz Chmielniak, Wojciech Kosman

Silesian University of Technology, Gliwice, Poland

Paper No. GT2006-91153, pp. 885-892; 8 pages
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4239-8
  • Copyright © 2006 by ASME


This paper presents procedure, which supports planning a strategy of operation, repairs and modernizations. Reliability and effectiveness are assumed to form the criteria for appropriate operation with a special attention to working costs. The procedure involves diagnostic analysis. Information derived from diagnostic may be utilized in many ways. It allows to determine losses, which derive from components wear or improper operation, and track the wear rate of machines components. This in turn allows to assess the losses, which appear in case of extended period between routine repairs. The most important application of the diagnostic results is the determination of the working costs for a CHP plant. It establishes a relation between the working costs of a gas turbine and its future time of operation. In addition it analyses the influence of the parameters independent of the gas turbine user (such as ambient conditions) on the operation and costs. The calculations presented in this paper involve a diagnostic module designed for uncooled and cooled gas turbines. The health state is assessed through a set of performance indices. Thermal measurements are the input data for the module, which may utilize even a small number of available measurements. The working costs create the basis for the procedure, which supports planning the strategy of operation and repairs. The procedure consists of several diagnostic rules. It draws conclusions from given premises. A premise includes a set of data, which involve among others working costs calculated according to health state. A conclusion indicates whether a further operation is possible and under what circumstances. The circumstances specify any required adjustments of the operation conditions or suggest an exchange or repair of some turbine components, which might be damaged.

Copyright © 2006 by ASME



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