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The paper presents a thermal-economic analysis of a 900 MW coal-fired power unit for ultra-supercritical parameters with internal steam reheat. The subject of the study was the cycle proposed as the "initial thermal cycle structure" during the completion of the project "Advanced Technologies for Energy Generation" with the steam parameters of 650/670 [degrees]C/30 MPa. Two configurations of internal reheat were analysed: with a fourand seven-section exchanger. The effect of reheat on the operation of the power unit under a partial load was also analysed, and preliminary calculations of the heat exchange area of the internal reheat were made.
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Rocznik
Tom
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127--144
Opis fizyczny
Bibliogr. 6 poz.,
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autor
- Silesian University of Technology, Institute of Power Engineering and Turbomachinery, ul. Konarskiego 18, 44-100 Gliwice, Poland, henryk.lukowicz@polsl.pl
Bibliografia
- [1] CHMIELNIAK T.: Thermodynamical cycles of turbines. Wrocław 1988 (in Polish).
- [2] KRZYŚLAK P., CHMIELNIAK T.: A concept of internal reheat and analysis of its thermodynamical and economical effectiveness. In: Supercritical Cycles for Coal-Fired Systems (T. Chmielniak, A. Ziębik, eds.) Silesian University of Technology Publishers, Gliwice 2010 (in Polish).
- [3] KRZYŚLAK P.: Efficiency of turbopower systems with and without internal reheat. Archiwum Energetyki (Archives of Energetics) XXI (2002), 3/4, 57–69 (in Polish).
- [4] KUBSKI P.: Influence of interstage internal reheat on efficiency of the power unit. Energetyka 4(2001), 189–193 (in Polish).
- [5] LOGAN E. Jr., ROY R.: Handbook of Turbomachinery. 2005.
- [6] PIETROWSKI J. W., FASTOWSKI W. G.: Contemporary high-efficiency heat exchangers. Warsaw 1964 (in Polish).
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Bibliografia
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bwmeta1.element.baztech-article-BGPK-3453-3076