Thermodynamic and economic analysis of a 900 MW ultra-supercritical 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: Ultra-supercritical steam parameters;    Steam cycle;    Coal-fired power unit;    Double reheat;   

DOI  :  10.2478/v10173-011-0025-1

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 different variants of a hard coal-fired 900 MW ultra-supercritical power unit. The aim of the study was to determine the effect of the parameters of live and reheated steam on the basic thermodynamic and economic indices of the thermal cycle. The subject of the study was the cycle configuration proposed as the "initial thermal cycle structure" during the completion of the project "Advanced Technologies for Energy Generation" with the live and reheated steam parameters of 650/670 °C. At the same time, a new concept of a thermal cycle for ultra-supercritical parameters with live and reheated steam temperature of 700/720 °C was suggested. The analysis of the ultra-supercritical unit concerned a variant with a single and double steam reheat. All solutions presented in the paper were subject to a detailed thermodynamic analysis, as well as an economic one which also included CO2emissions charges. The conducted economic analysis made it possible to determine the maximum value of investment expenditures at which given solutions are profitable.

【 授权许可】

Unknown