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Effective design and operation strategy of renewable cooling and heating system for building application in hot-humid climate

机译：在湿热气候下建筑应用中可再生制冷和供暖系统的有效设计和运行策略

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摘要

The utilization of renewable energy sources is commonly constrained by the building form and the site environment particularly in a densely-populated city which limits the space available to install the respective facilities. The hybrid use of solar and geothermal energy helps improve the situation as the roof and the ground can be fully utilized. A renewable cooling and heating system (RCHS) was therefore investigated based on this approach when applied to a three-storey office building in sub-tropical climate. Solar energy was used in absorption cooling and water heating while ground source was utilized by a high-temperature chiller for radiant cooling. Appropriate control and operation schemes were adopted for the ground-coupled radiant cooling system according to the ambient conditions in order to minimize the system energy demand. By performing dynamic system simulations using TRNSYS, the year-round performances of RCHS were thoroughly evaluated under different design factors including radiant panel type, ground thermal conductivity, borehole length and water heating demand. It was found that the RCHS was effective to tackle the high cooling demand for building in the hot-humid climate, with 44.4% annual primary energy saving against the conventional system. (C) 2016 Elsevier Ltd. All rights reserved.
机译：可再生能源的利用通常受到建筑形式和现场环境的限制，特别是在人口稠密的城市，这限制了可用于安装各个设施的空间。太阳能和地热能的混合使用可以改善屋顶和地面的状况，从而改善这种状况。因此，当将这种可再生制冷和供暖系统（RCHS）应用于亚热带气候中的三层办公楼时，便基于此方法进行了研究。太阳能用于吸收式冷却和水加热，而地源则由高温冷却器用于辐射冷却。根据环境条件，对地面耦合辐射冷却系统采用了适当的控制和操作方案，以最大程度地降低系统的能源需求。通过使用TRNSYS进行动态系统仿真，在辐射板类型，地面导热率，井眼长度和热水需求等不同设计因素的影响下，全面评估了RCHS的全年性能。结果发现，RCHS有效地解决了在湿热气候下建筑物的高制冷需求，与传统系统相比，每年可节省44.4％的一次能源。 （C）2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Solar Energy》 |2017年第2期|1-9|共9页
  • 作者

    Fong K. F.; Lee C. K.; Zhao T. F.;

  • 作者单位

    City Univ Hong Kong, Coll Sci & Engn, Div Bldg Sci & Technol, Hong Kong, Hong Kong, Peoples R China;

    City Univ Hong Kong, Coll Sci & Engn, Dept Architecture & Civil Engn, Hong Kong, Hong Kong, Peoples R China;

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

    Renewable cooling and heating; Solar energy; Ground source; Control and operation;

    机译：可再生的冷却和加热;太阳能;地源;控制和操作;

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