The Influence of Different Arrangements of Steam Cooler on Steam Turbine Thermal Efficiency

被引：0
|
作者：
Zhang, Yuan-Shu [1 ]
Liu, Sha [2 ]
机构：
[1] Huadian Elect Power Res Inst Co, LTE, Hangzhou 310030, Zhejiang, Peoples R China
[2] Jingling Inst Technol, Nanjing 211169, Jiangsu, Peoples R China
来源：
PROCEEDINGS OF THE 2018 INTERNATIONAL CONFERENCE ON ENERGY DEVELOPMENT AND ENVIRONMENTAL PROTECTION (EDEP 2018) | 2018年 / 174卷
关键词：
Parallel steam cooler; Series steam cooler; Thermal efficiency;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
For a reheat-regenerative cycle steam turbine, the increased superheat of extraction steam after reheating causes the regenerative effect to weaken. Steam cooler can make rational use of the superheat of the extraction steam to improve the thermal efficiency of steam turbine. Based on the heat balance calculation of steam turbine, the mathematical models of the influence of steam cooler on steam turbine thermal efficiency was established. With the models, calculated the influence of external series steam cooler and external parallel steam cooler on thermal efficiency. The calculation result shows that the thermal efficiency of the cycle with external steam cooler is higher than the cycle with integral type, and in the case of reasonable design, the efficiency of the cycle with external parallel steam cooler is higher than the cycle with series type. The analysis provides a theoretical basis for the optimization and remolding of the regenerative system.
引用
收藏
页码：67 / 71
页数：5
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