Heating and cooling performance optimization of power, heating and cooling poly-generation photovoltaic radiant panel

被引：0
|
作者：
Sun Y. [1 ]
Wang Y. [1 ,2 ]
Wei S. [2 ]
Huang Q. [2 ]
Zhu L. [1 ,2 ]
Cui Y. [3 ]
机构：
[1] School of Architecture, Tianjin University, Tianjin
[2] School of Chemical Engineering and Technology, Tianjin University, Tianjin
[3] Tianjin University Research Institute of Architectural Design, Tianjin
来源：
Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology | 2016年 / 49卷 / 08期
关键词：
Numerical simulation; Photovoltaic radiant panel (PV/R); Power; heating and cooling poly-generation; Radiant cooling;
D O I：
10.11784/tdxbz201503036
中图分类号：
学科分类号：
摘要：
3D computational fluid dynamics models of power, heating and cooling poly-generation photovoltaic radiant panel (PV/R) module were established, and influences of tube spacing and flow rate on heating and cooling performance of PV/R module in summer conditions were analyzed using Fluent. Economical and operation mode were discussed simultaneously. For heat-collecting mode, average working temperature of PV/R module can be controlled below 50℃ and the working temperature of solar cell decreases with raising flow rate and decreasing tube spacing, but decreasing tube spacing is not beneficial to increasing heat-collecting temperature and efficiency. For cooling mode, increasing inlet and ambient temperature difference can effectively improve radiant cooling rate, and its value can reach 40-90 W/m2 when temperature difference is 5-10℃. Taking heating and cooling performance into consideration, recommended tube spacing and flow rate are 130 mm and 180-240 L/h respectively, the corresponding heat-collecting temperature and efficiency and radiant cooling rate being 38-45℃, 48%, -52%, and 50-60 W/m2 respectively. © 2016, Editorial Board of Journal of Tianjin University(Science and Technology). All right reserved.
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页码：823 / 829
页数：6
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