The effect of the internal reheat application on the efficiency of the 900 MW ultra-supercritical coal-fired power unit

Archives of Thermodynamics

Henryk ?ukowiczInstitute of Power Engineering and Turbomachinery, Silesian University of Technology, ul. Konarskiego 18, 44-100 Gliwice, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  S?awomir DykasInstitute of Power Engineering and Turbomachinery, Silesian University of Technology, ul. Konarskiego 18, 44-100 Gliwice, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Katarzyna St?pczy?skaInstitute of Power Engineering and Turbomachinery, Silesian University of Technology, ul. Konarskiego 18, 44-100 Gliwice, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Sebastian RulikInstitute of Power Engineering and Turbomachinery, Silesian University of Technology, ul. Konarskiego 18, 44-100 Gliwice, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Institute of Power Engineering and Turbomachinery, Silesian University of Technology, ul. Konarskiego 18, 44-100 Gliwice, Poland

关键词: Keywords: Internal reheat;    Ultra-supercritical coal-fired power units;    Electricity generation efficiency;   

DOI  :  10.2478/v10173-011-0018-0

学科分类：能源（综合）

来源: Polska Akademia Nauk * Oddzial w Gdansku, Instytut Maszyn Przeplywowych / Polish Academy of Sciences, Institute of Fluid-Flow Machinery

【 摘 要 】

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 °C/30 MPa. Two configurations of internal reheat were analysed: with a four- and 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.

【 授权许可】

Unknown