Performance of capillary ceiling cooling panel on ceiling surface temperature and indoor thermal environment,Indoor and Built Environment

当前位置： X-MOL 学术 › Indoor Built Environ. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Performance of capillary ceiling cooling panel on ceiling surface temperature and indoor thermal environment
Indoor and Built Environment ( IF 3.2 ) Pub Date : 2020-05-05 , DOI: 10.1177/1420326x20917740
Dong Xie ₁ , Chenhua Wang ₁ , Chuck Wah Yu _{1,

2} , Yun Wang ₁ , Hanqing Wang ₃

Affiliation

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 m3 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°C to 21.5 ± 0.3°C with a rise in the inlet water temperature to 20.1°C. The temperature difference between the head and ankle of an occupant was 2.0°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°C in the horizontal direction. When the ventilation system was turned on, with the air supply temperature and velocity at 19.8°C and 1.11 m s−1, the ceiling surface temperature was increased by 0.5°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.

更新日期：2020-05-05

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11