Power Generation Technology ›› 2017, Vol. 38 ›› Issue (1): 21-24.DOI: 10.3969/J.ISSN.2095-3429.2017.01.005

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Upgrade Scheme Comparison Between Parameter-increase and CrossGeneration for Subcritical Units

CHANG Zheng, ZHANG Zhen-hua, ZHAO Wen-bo, WAN Kui-fang, GAO Zhi-pu   

  1. China Datang Corporation Science and Technology Research Institute, Beijing 102206, China
  • Received:2016-11-09 Revised:2017-12-27 Published:2017-02-28 Online:2017-02-28

Abstract: Increasing parameters for subcritical units upgrade is a hot issue recently as well as cross-generation. By technical and economic comparison between these two retrofitting programs, the result for 600 MW wet cooling subcritical unit shows that the former can reduce coal consumption to 298.67g/(k W·h) while the latter 277.3g/(k W·h). However,parameter-increase scheme has more advantages such as small retrofitting scale, short duration and also cost few

Key words: increasing parameters, cross-generational upgrade, turbine retrofitting

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