• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >How to rapidly predict the performance of ORC: Optimal empirical correlation based on cycle separation
【24h】

How to rapidly predict the performance of ORC: Optimal empirical correlation based on cycle separation

机译：如何快速预测兽人的性能：基于循环分离的最佳经验相关性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper establishes an empirical correlation based on the separability of thermodynamic cycle, which could characterize the thermodynamic performance of organic Rankine cycle (ORC), resembling heat transfer empirical correlation. In this research, we found that the thermal efficiency, exergy efficiency and net output power of ORC can be expressed by the heat source characteristics (T-hs, heat source temperature) and two key physical properties of working fluids (T-cri, critical temperature; omega, acentric factor). That is, Omega(ORC,opt) = C-wf.T-cri(m).omega(n)(wf).T-hs(o).Taking subcritical ORC as an example, the empirical correlation of the optimal power generation and its corresponding optimal evaporation temperature could be provided through proposed method. The results reveal that the empirical correlations have the high prediction accuracies (the determination coefficient R-2 are both about 0.97) when comparing with traditional numerical calculation. The application of correlation could avoid the complex process of iteration for calculation convergence and calling properties, so it is more convenient and faster than traditional methods when used to predict the performance of ORC or to select and design the working fluids.
机译：本文建立了基于热力学循环可分离性的经验相关性，其能够表征有机朗肯循环（ORC）的热力学性能，类似于传热经验相关性。在这项研究中，我们发现ORC的热效率，高效效率和净输出功率可以通过热源特性（T-HS，热源温度）和工作流体的两个关键物理性能表示（T-CRI，临界温度;ω，缩点因子）。也就是说，Omega（ORC，OPT）= C-WF.T-CRI（M）.MOMEGA（N）（WF）.T-HS（O）。亚临界兽人作为示例，优化功率的经验相关性通过提出的方法可以提供和其相应的最佳蒸发温度。结果表明，当与传统数值计算比较时，经验相关性具有高预测精度（确定系数R-2均约为0.97）。相关性的应用可以避免复杂的计算收敛性和调用属性的过程，因此在用于预测兽人的性能或选择和设计工作流体时，它比传统方法更方便且更快。

著录项

  • 来源
    《Energy Conversion & Management》 |2019年第5期|86-93|共8页
  • 作者

    Zhao Jun; Hu Likai; Wang Yongzhen; Yin Hongmei; Deng Shuai; Li Wenjia; Du Yanping; An Qingsong;

  • 作者单位

    Tianjin Univ Key Lab Efficient Utilizat Low & Medium Grade Ene MOE Tianjin 300350 Peoples R China;

    Tianjin Univ Key Lab Efficient Utilizat Low & Medium Grade Ene MOE Tianjin 300350 Peoples R China;

    Tsinghua Univ Dept Elect Engn Energy Internet Res Inst Beijing 100084 Peoples R China;

    Tianjin Univ Key Lab Efficient Utilizat Low & Medium Grade Ene MOE Tianjin 300350 Peoples R China;

    Tianjin Univ Key Lab Efficient Utilizat Low & Medium Grade Ene MOE Tianjin 300350 Peoples R China;

    Tianjin Univ Key Lab Efficient Utilizat Low & Medium Grade Ene MOE Tianjin 300350 Peoples R China;

    Shanghai Jiao Tong Univ China UK Low Carbon Coll Shanghai 200240 Peoples R China;

    Tianjin Univ Key Lab Efficient Utilizat Low & Medium Grade Ene MOE Tianjin 300350 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

    Cycle decoupling; Organic Rankine cycle; Empirical correlation; Critical temperature; Acentric factor;

    机译：循环去耦;有机朗肯循环;经验相关性;临界温度;缩小因子;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号