...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Indoor and built environment >Performance of capillary ceiling cooling panel on ceiling surface temperature and indoor thermal environment
【24h】

Performance of capillary ceiling cooling panel on ceiling surface temperature and indoor thermal environment

机译：天花板表面温度和室内热环境上的毛细管顶板冷却板的性能

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

A new experimental methodology is presented to show the effect of water supply temperature, mass flow rate and thermal load distribution on the radiant ceiling capacity and thermal comfort conditions. Computerized fluid dynamics simulated vertical temperatures and velocities profiles were validated by a comparison with experimental results and the difference was within 10%. Uniform surface temperature distribution was achieved in a 45.6 m(3) test room installed with capillary ceiling radiant cooling panels by an increase in water temperature and air supply velocity. When the ventilation system was turned off, the mean ceiling surface temperature rose from 16.9 +/- 0.4 degrees C to 21.5 +/- 0.3 degrees C with a rise in the inlet water temperature to 20.1 degrees C. The temperature difference between the head and ankle of an occupant was 2.0 degrees C, which complies with the Chinese standard, GB/T 18049-2017. At a height of 1-1.5 m, the maximum temperature fluctuation was 2 degrees C in the horizontal direction. When the ventilation system was turned on, with the air supply temperature and velocity at 19.8 degrees C and 1.11 m s(-1), the ceiling surface temperature was increased by 0.5 degrees C. The indoor air temperature has a positive correlation with the air supply temperature and internal heat load but a negative correlation with air supply velocity.
机译：提出了一种新的实验方法，以显示供水温度，质量流量和热负荷分布对辐射顶板容量和热舒适条件的影响。通过与实验结果的比较验证计算机化流体动力学模拟垂直温度和速度型材，差异在10％以内。通过增加水温和空气供应速度，在安装有毛细管顶板辐射冷却板的45.6米（3）次测试室中实现均匀的表面温度分布。当通风系统关闭时，平均天花板表面温度从16.9 +/- 0.4摄氏度上升到21.5 +/- 0.3摄氏度，进入水温升高到20.1℃。头部和占用者的脚踝是2.0度C，符合中国标准，GB / T 18049-2017。在1-1.5米的高度，在水平方向上最大温度波动为2℃。当通风系统接通时，随着空气供应温度和19.8℃和1.11ms（-1）的速度，上限温度升高0.5℃。室内空气温度与空气供应具有正相关温度和内部热负荷，但与空气供应速度的负相关性。

著录项

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