| 复合相变蓄热材料太阳能通风井性能 |
| |
| 引用本文： | 丁云飞,王元明,吴会军.复合相变蓄热材料太阳能通风井性能[J].土木建筑与环境工程,2018,40(4):7-12. |
| |
| 作者姓名： | 丁云飞 王元明 吴会军 |
| |
| 作者单位： | 广州大学土木工程学院,广州510006;广州大学广东省建筑节能与应用技术重点实验室,广州510006
广州大学土木工程学院,广州,510006 |
| |
| 基金项目： | 国家自然科学基金(51678167)，广东省重大科技专项(2013A011404005) |
| |
| 摘 要： | 针对太阳能通风井道蓄热单元的技术需求,制备了复合相变蓄热材料,并将其应用于通风井壁,建立了基于复合相变蓄热材料的太阳能通风井测试系统,并测试了其运行性能。结果表明:添加5%碳纳米管制备的复合相变材料,其导热系数为0.65 W/m·K,是添加前的2.03倍,相变潜热为107J/g,是添加前的0.718倍。应用上述材料的太阳能通风井测试系统在10:00—21:00时段通风量为55.0~103.9m~3/h,其中在17:00风速和风量达到最大,为良好的自然通风提供了保障。
|
| 关 键 词： | 相变材料 热物性 自然通风 热压 |
| 收稿时间： | 2017/12/19 0:00:00 |
Performance of solar ventilation shaft based on composite phase change thermal storage materials |
| |
| Ding Yunfei,Wang Yuanming and Wu huijun.Performance of solar ventilation shaft based on composite phase change thermal storage materials[J].土木建筑与环境工程,2018,40(4):7-12. |
| |
| Authors: | Ding Yunfei Wang Yuanming and Wu huijun |
| |
| Affiliation: | School of Civil Engineering, Guangzhou University, Guangzhou 510006, P. R. China;Guangdong Provincial Key Laborary of Building Energy Efficiency and Application Technologies, Guangzhou University, Guangzhou 510006, P. R. China,School of Civil Engineering, Guangzhou University, Guangzhou 510006, P. R. China and School of Civil Engineering, Guangzhou University, Guangzhou 510006, P. R. China;Guangdong Provincial Key Laborary of Building Energy Efficiency and Application Technologies, Guangzhou University, Guangzhou 510006, P. R. China |
| |
| Abstract: | According to the technical requirements of thermal storage unit of solar ventilation shaft, A composite phase change materials were prepared and applied to the ventilation shaft, and a solar ventilation shaft experimental system using composite phase change material was established, and its operation performance was tested. The results showed that the thermal conductivity and the latent heat of the composite phase change material prepared by adding 5wt% carbon nanotubes were 0.65 W/m.K and 107 J/g respectively, and 2.03 times and 0.718 times of that before adding. And outlet air flow of the solar ventilation shaft experimental system using above material were 55~103.9 m3/h beteewn 10:00 to 21:00, and the time was in 17:00 to the both of maximum value. This provides a guarantee for the natural ventilation. |
| |
| Keywords: | phase change materials thermophysical property natural ventilation thermal pressure |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《土木建筑与环境工程》浏览原始摘要信息 |
|
点击此处可从《土木建筑与环境工程》下载全文 |
|
