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首页> 外文期刊>Solar Energy >An evaluation study of miniature dielectric crossed compound parabolic concentrator (dCCPC) panel as skylights in building energy simulation
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An evaluation study of miniature dielectric crossed compound parabolic concentrator (dCCPC) panel as skylights in building energy simulation

机译：微型电介质交叉复合抛物面聚光器（dCCPC）板作为天窗在建筑能源模拟中的评估研究

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摘要

The potential of miniature dielectric crossed compound parabolic concentrator (dCCPC) panel as skylights for daylighting control has drawn a considerable research attention in the recent years, owing to its feature of variable transmittance according to the sun position, but the viability of using it as skylights in buildings has not been explored yet comprehensively. This paper aims to study the feasibility of utilizing miniature dCCPC panel as skylight in different locations under various climates in terms of energy saving potential besides its daylighting control function. The transmittance of dCCPC panel varies at every moment according to the sky condition and sun position. Due to this specific property, this study novelly implemented a polynomial formula of the dCCPC transmittance in the Grasshopper platform, from which EnergyPlus weather data can be called to calculate the hourly transmittance data of dCCPC skylight panel throughout the whole year. An hourly schedule of transmittance is generated according to the hourly sky condition determined by the daylight simulation through Radiance and Daysim, and is then input to EnergyPlus simulation to predict the energy consumption of a building with dCCPC skylight. Fourteen locations around the world are therefore compared to find the most appropriate place for using miniature dCCPC panel as skylights. The energy saving in cooling, heating and lighting with use of dCCPC skylight panel are investigated and compared with low-E and normal double glazing. The results show that the dCCPC skylight panel can reduce cooling load by mitigating solar heat gain effectively although its performance is affected by several criteria such as sky conditions and local climates. It is generally more suitable for the locations with longer hot seasons, e.g., Log Angeles, Miami, Bangkok and Manila, in which dCCPC could provide up to 13% reduction in annual energy consumption of building. For the locations having temperate and continental climates like Beijing, Rome, Istanbul and Hong Kong, a small annual energy saving from 1% to 5% could be obtained by using dCCPC skylight panel.
机译：微型电介质交叉复合抛物面聚光器（dCCPC）面板作为天窗用于采光控制的潜力由于其随太阳位置变化的透射率特性而在近年来受到了相当多的研究关注，但是将其用作天窗的可行性尚未全面探索建筑物中的建筑。本文旨在研究除日光控制功能外，在节能潜力方面，在各种气候下，将微型dCCPC面板用作天窗在不同气候下的可行性。 dCCPC面板的透光率会随时根据天空条件和太阳位置而变化。由于这种特殊的性质，本研究在Grasshopper平台上新颖地实现了dCCPC透光率的多项式公式，从中可以调用EnergyPlus气象数据来计算dCCPC天窗面板全年的小时透光率数据。根据通过Radiance和Daysim进行的日光模拟确定的小时天空条件，生成小时透射率计划，然后将其输入到EnergyPlus模拟中，以预测具有dCCPC天窗的建筑物的能耗。因此，我们比较了全球14个地点，以找到最适合将微型dCCPC面板用作天窗的地方。研究了使用dCCPC天窗面板在冷却，采暖和照明方面的节能效果，并将其与低辐射玻璃和普通双层玻璃进行了比较。结果表明，尽管dCCPC天窗面板的性能受多种条件（例如天空条件和当地气候）的影响，但它可以通过有效地减少太阳热量的吸收来降低制冷负荷。它通常更适合炎热季节较长的地区，例如，洛杉机，迈阿密，曼谷和马尼拉，在这些地区，dCCPC可以将建筑物的年度能耗降低多达13％。对于像北京，罗马，伊斯坦布尔和香港这样的温带和大陆性气候的地区，使用dCCPC天窗面板每年可节省1％至5％的少量能源。

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  • 来源
    《Solar Energy》 |2019年第2期|264-278|共15页
  • 作者

    Tian Meng; Zhang Li; Su Yuehong; Xuan Qingdong; Li Guiqiang; Lv Hui;

  • 作者单位

    Univ Nottingham, Fac Engn, Dept Architecture & Built Environm, Univ Pk, Nottingham NG7 2RD, England;

    Univ Hull, Sch Engn, Kingston Upon Hull HU6 7RX, N Humberside, England;

    Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China;

    Hubei Univ Technol, Hubei Collaborat Innovat Ctr High Efficiency Util, Wuhan 430068, Hubei, 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

    Dielectric crossed compound parabolic concentrator (dCCPC); Daylighting control; Grasshopper; Energy saving;

    机译：介质交叉复合抛物线集中器（dCCPC）;采光控制;蚱hopper;节能;

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