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首页> 外文期刊>Energy Conversion & Management >Exergy loss characteristics of a recuperated gas turbine and Kalina combined cycle system using different inlet guide vanes regulation approaches
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Exergy loss characteristics of a recuperated gas turbine and Kalina combined cycle system using different inlet guide vanes regulation approaches

机译：使用不同的入口导向叶片调节方法恢复燃气轮机和Kalina联合循环系统的损失特性

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摘要

This study proposes a novel two-step compressor inlet guide vanes (IGV) method to exploit performance enhancement potential for recuperated gas turbine and Kalina combined cycle (RGT-KCC). The off-design simulation model for RGT-KCC using compressor IGV regulation is constructed on the basis of energy and exergy analysis. The novel two-step IGV method is implemented by decreasing IGV opening to maintain gas turbine inlet temperature constant firstly and then maintain gas turbine outlet temperature (GTOT) at allowable maximum. The effects of novel two-step IGV and two conventional one-step IGV methods on RGT-KCC performance are compared in search for the superiority of novel method. The exergy loss distribution, component exergy efficiency, system exergy efficiency of RGT-KCC under different compressor IGV methods are evaluated with the change of RGT-KCC load. The results indicate that the novel two-step IGV method with the highest GTOT leads to the highest combustion chamber exergy efficiency and topping cycle exergy efficiency. Compared with the conventional one-step IGV methods, the novel method shows 1.37% more combined cycle exergy efficiency at most in RGT-KCC load range of 100-29.3%. As the RGT-KCC load decreases, the component exergy efficiencies of combustion chamber and KCS evaporator go up, while that of compressor and turbine drop. It is interesting to find that exergy loss proportion of combustion chamber drops obviously from 46.79% to 22.31% under novel method, while that of compressor, gas turbine and KCS increase. The novel two-step IGV method with high GTOT is the optimal method to enhance RGT-KCC part-load exergy efficiency in a wide load range.
机译：本研究提出了一种新型的两步压缩机入口导向叶片（IGV）方法，用于利用液体汽轮机和Kalina联合循环（RGT-KCC）的性能增强电位。使用压缩机IGV调节的RGT-KCC的非设计仿真模型是在能量和漏洞分析的基础上构建的。通过降低IGV开口来实现新型两步IGV方法，以首先保持燃气轮机入口温度恒定，然后在允许的最大值处维持燃气轮机出口温度（GTOT）。比较了新型两步IGV和两个常规单步IGV方法对RGT-KCC性能的影响，以寻找新方法的优越性。随着RGT-KCC负荷的变化，评估了COMPORT-KCC在不同压缩机IGV方法下RGT-KCC的损失分布，组件漏洞效率，改变了RGT-KCC。结果表明，具有最高GTOT的新型两步IGV方法导致最高的燃烧室高度效率和顶部循环的效率。与常规的一步IGV方法相比，新型方法显示1.37％的综合循环效率最高，RGT-KCC负荷范围为100-29.3％。随着RGT-KCC负荷降低，燃烧室和KCS蒸发器的组件漏洞效率上升，而压缩机和涡轮机下降。有趣的是发现燃烧室的高级损失比例显然从新的方法下降到22.31％，而压缩机，燃气轮机和KCS的增加明显增加。具有高GTOT的新型两步IGV方法是在宽负载范围内提高RGT-KCC部分负荷效率的最佳方法。

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  • 来源
    《Energy Conversion & Management》 |2021年第2期|113805.1-113805.17|共17页
  • 作者

    Du Yang; Zheng Shaoxiong; Chen Kang; Fan Gang; Wang Jiangfeng; Zhao Pan; Dai Yiping;

  • 作者单位

    Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China|Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

    Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Exergy loss; Recuperated gas turbine; Kalina cycle system; Inlet guide vanes; Exergy analysis;

    机译：漏洞;恢复燃气轮机;Kalina循环系统;入口导向叶片;漏洞分析;
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