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首页> 外文期刊>Energy Conversion & Management >Research on thermodynamic performance of a novel building cooling system integrating dew point evaporative cooling, air-carrying energy radiant air conditioning and vacuum membrane-based dehumidification (DAV-cooling system)
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Research on thermodynamic performance of a novel building cooling system integrating dew point evaporative cooling, air-carrying energy radiant air conditioning and vacuum membrane-based dehumidification (DAV-cooling system)

机译：新型建筑冷却系统热力学性能研究整合露点蒸发冷却，空气携带能量辐射空调和基于真空膜的除湿（DAV冷却系统）

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摘要

In this work, a novel building cooling system is proposed, namely DAV-cooling system, which integrates dew point evaporative cooling, air-carrying energy radiant air conditioning and vacuum membrane-based dehumidification. The DAV-cooling system does not use any organic refrigerants, and can naturally provide fresh air indoors to prevent managers from arbitrarily reducing fresh air, and can be flexibly adjusted to meet different cooling requirements. In addition, the thermodynamic model of the DAV-cooling system is established, and some systematical analysis of parameters of the DAV-cooling system is carried out. The results indicate that there is an optimal ratio of fresh air to primary air for the DAV-cooling system, and the optimal value of this ratio should be in the range of 0.2-0.4. When the DAV-cooling system operates under the condition of a higher flow of primary air, the requirements for the dehumidification efficiency of the vacuum membrane-based dehumidification device can be reduced. Moreover, the relationship between COP and cooling capacity ratio is revealed, and it is found that COP decreases as the cooling capacity ratio increases, but they are not in an absolutely one-to-one relationship. Outdoor temperature and humidity also have a greater impact on the performance of the DAV-cooling system. For Singapore and Changsha in the period from June to August, the COP of the DAV-cooling system is about 5-7 and 4.5-9 respectively when the permeate side pressure is 20 kPa. Finally, the engineering design methods of the DAV-cooling system are discussed, and it is found that the DAV-cooling system can be designed as a temperature and humidity independent control air conditioning system through the proposed design method and the established model. This work can provide a complete solution reference and some new insights for the application of next-generation HVAC systems.
机译：在这项工作中，提出了一种新型建筑冷却系统，即DAV冷却系统，其集成了露点蒸发冷却，空气承载能量辐射空调和基于真空膜的除湿。 DAV冷却系统不使用任何有机制冷剂，并且可以自然地在室内提供新鲜空气，以防止管理人员任意减少新鲜空气，并且可以灵活地调整以满足不同的冷却要求。此外，建立了DAV冷却系统的热力学模型，并进行了对DAV冷却系统的参数的一些系统分析。结果表明，对于DAV冷却系统，新鲜空气与初级空气的最佳比率，该比率的最佳值应在0.2-0.4的范围内。当DAV冷却系统在初级空气较高的条件下操作时，可以减少真空膜的除湿装置的除湿效率的要求。此外，揭示了警察和冷却能力比之间的关系，并且发现COP随着冷却能力比增加而降低，但它们不是绝对一对一的关系。室外温度和湿度也对DAV冷却系统的性能产生了更大的影响。从6月到8月的新加坡和长沙，当渗透侧压力为20kPa时，DAV冷却系统的COP分别为约5-7和4.5-9。最后，讨论了DAV冷却系统的工程设计方法，发现DAV冷却系统可以通过所提出的设计方法和建立的模型设计为温度和湿度独立的控制空调系统。这项工作可以为应用下一代HVAC系统提供完整的解决方案参考和一些新的见解。

著录项

  • 来源
    《Energy Conversion & Management》 |2021年第10期|114551.1-114551.15|共15页
  • 作者

    Chun Liang; Gong Guangcai; Peng Pei; Wan Yangda; Chua Kian Jon; Fang Xi; Li Wenqiang;

  • 作者单位

    Hunan Univ Coll Civil Engn Changsha 410082 Peoples R China|Hunan Univ Key Lab Bldg Safety & Energy Efficiency Minist Educ Changsha 410082 Peoples R China|Hunan Univ Natl Ctr Int Res Collaborat Bldg Safety & Environ Changsha 410082 Peoples R China;

    Hunan Univ Coll Civil Engn Changsha 410082 Peoples R China|Hunan Univ Key Lab Bldg Safety & Energy Efficiency Minist Educ Changsha 410082 Peoples R China|Hunan Univ Natl Ctr Int Res Collaborat Bldg Safety & Environ Changsha 410082 Peoples R China;

    Hunan Univ Coll Civil Engn Changsha 410082 Peoples R China|Hunan Univ Key Lab Bldg Safety & Energy Efficiency Minist Educ Changsha 410082 Peoples R China|Hunan Univ Natl Ctr Int Res Collaborat Bldg Safety & Environ Changsha 410082 Peoples R China;

    Natl Univ Singapore Dept Mech Engn Singapore 117575 Singapore;

    Natl Univ Singapore Dept Mech Engn Singapore 117575 Singapore;

    Hunan Univ Coll Civil Engn Changsha 410082 Peoples R China|Hunan Univ Key Lab Bldg Safety & Energy Efficiency Minist Educ Changsha 410082 Peoples R China|Hunan Univ Natl Ctr Int Res Collaborat Bldg Safety & Environ Changsha 410082 Peoples R China;

    Hunan Univ Coll Civil Engn Changsha 410082 Peoples R China|Hunan Univ Key Lab Bldg Safety & Energy Efficiency Minist Educ Changsha 410082 Peoples R China|Hunan Univ Natl Ctr Int Res Collaborat Bldg Safety & Environ Changsha 410082 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

    Dew point evaporative cooling; Air-carrying energy radiant air conditioning; Vacuum membrane-based dehumidification; Building cooling system; Thermodynamics;

    机译：露点蒸发冷却;空气携带能量辐射空调;基于真空膜的除湿;建筑冷却系统;热力学;

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