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首页> 外文期刊>Energy Conversion & Management >Performance analysis of a novel combined cooling, heating and power system based on carbon dioxide energy storage
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Performance analysis of a novel combined cooling, heating and power system based on carbon dioxide energy storage

机译：基于二氧化碳储能的新型冷却，加热和电力系统性能分析

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摘要

Carbon dioxide has been proposed as a new working fluid in energy storage system since compressed air energy storage technology is restricted in application by geological formations. Besides, combined cooling, heating and power system can supply diversified energies to users. A novel trigeneration system based on transcritical Brayton cycle and carbon dioxide energy storage is thus presented in this work. The operating principle of this system is described and thermodynamic model is developed for numerical analysis of the system performance. Meanwhile, parametric analysis is conducted to examine the effect of key parameters on system performance. Results indicate that a lower hot fluid reutilization ratio is beneficial for improving cooling ability, heating ability and total output energy, and this trigeneration system is much more suitable for heating users than cooling users. The operational range and cooling range of system is slightly influenced by storage pressure, but are broaden by the increase of pressure difference through first throttle valve and ambient temperature. The cooling ability and heating ability increase monotonically with storage pressure, and decrease with pressure difference through first throttle valve and ambient temperature.
机译：已经提出了二氧化碳作为能量存储系统的新工作流体，因为压缩空气储能技术受到地质构造的限制。此外，组合冷却，加热和电力系统可以向用户提供多样化的能量。因此，在这项工作中提出了一种基于跨临界Brayton循环和二氧化碳能量存储的新型三合组系统。描述了该系统的操作原理，并开发了热力学模型，用于系统性能的数值分析。同时，进行参数分析以检查关键参数对系统性能的影响。结果表明，较低的热流体再利用率是有利于改善冷却能力，加热能力和总输出能量的有益，并且该三合组系统更适合于加热用户而不是冷却用户。系统的操作范围和冷却范围受到储存压力的略微影响，但通过通过第一节流阀和环境温度的压力差的增加而变宽。冷却能力和加热能力随着储存压力单调而增加，并通过第一节流阀和环境温度随压力差而减小。

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  • 来源
    《Energy Conversion & Management》 |2019年第5期|151-161|共11页
  • 作者

    Liu Zhan; Cao Feng; Guo Jianzhang; Liu Jie; Zhai Hongyan; Duan Zhenya;

  • 作者单位

    Qingdao Univ Sci & Technol Coll Electromech Engn Qingdao 266061 Shandong Peoples R China|Xi An Jiao Tong Univ Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

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

    Qingdao Univ Sci & Technol Coll Electromech Engn Qingdao 266061 Shandong Peoples R China;

    Qingdao Univ Technol Sch Environm & Municipal Engn Qingdao 266033 Shandong Peoples R China;

    Qingdao Univ Sci & Technol Coll Electromech Engn Qingdao 266061 Shandong Peoples R China;

    Qingdao Univ Sci & Technol Coll Electromech Engn Qingdao 266061 Shandong 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

    Combined cooling, heating and power system; Carbon dioxide energy storage; Transcritical Brayton cycle; System thermodynamic analysis;

    机译：组合冷却;加热和电力系统;二氧化碳能量存储;跨临界布雷顿循环;系统热力学分析;

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