| 一种光伏一热通风装置的热特性试验研究 |
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| 引用本文： | 冯朝卿,郑宏飞,王瑞. 一种光伏一热通风装置的热特性试验研究[J]. 北京理工大学学报, 2016, 36(7): 684-689. DOI: 10.15918/j.tbit1001-0645.2016.07.005 |
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| 作者姓名： | 冯朝卿 郑宏飞 王瑞 |
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| 作者单位： | 内蒙古工业大学能源与动力工程学院,内蒙古,呼和浩特010051;北京理工大学机械与车辆学院,北京100081;北京理工大学机械与车辆学院,北京,100081 |
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| 基金项目： | 国家“八六三”计划项目（2013AA102407-2）；内蒙古自治区自然科学基金资助项目（2016BS0505） |
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| 摘 要： | 提出一种新型的光伏/热通风装置，利用CFD仿真对比分析了底板进气和侧板进气两种不同形式下装置内温度分布情况.试验结果表明底板进气可有效降低装置内最高温度，并使装置内温度分布更加均匀.对新型光伏-热通风装置进行了室内稳态试验，通过改变加热功率、风速及底板通风孔个数，分析不同工况下装置的热特性.结果表明:出风口温度和装置内最高温度随着加热功率的增加而增加，但装置热效率随着加热功率的升高而降低，减少底板孔数后装置内温度分布更均匀；定加热功率试验表明风速越大装置效率越高.此基础上对新型光伏-热通风装置进行室外实际天气条件下性能试验.结果表明装置对空气的加热功率变化趋势与辐照度的变化趋势接近，整个装置在中午时热量利用率最高.
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| 关 键 词： | 光伏-热利用 通风 热特性 试验研究 |
| 收稿时间： | 2015-02-08 |
Experiment Research on Thermal Characteristic of the PV-T Aerator |
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| FENG Chao-qing,ZHENG Hong-fei and WANG Rui. Experiment Research on Thermal Characteristic of the PV-T Aerator[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2016, 36(7): 684-689. DOI: 10.15918/j.tbit1001-0645.2016.07.005 |
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| Authors: | FENG Chao-qing ZHENG Hong-fei WANG Rui |
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| Affiliation: | 1.College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongoliar 010051, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China2.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A novel PV-T (photovoltaic/thermal) aerator was presented and the CFD (computational fluid dynamics) simulation was taken to compare two kinds structure of device, that air flow from bottom inlet or beside inlet. Simulation results show that bottom inlet can decrease the inner temperature of PV-T device and make the temperature well-distributed in PV surface. A steady state experiment was taken in room for the PV-T aerator. Thermal characteristic about the PV-T aerator was analyzed under different heating power, different air flow rate and different number of hole in the bottom cover. The indoor experiment results show that with the increasing of heat power, the inlet and outlets'' wind temperature of steady-state is rising, the useful power increases; meanwhile, the heat loss is rising. The air heating efficiency of the device is decreasing with the increase of heating power. The temperature distribution in the PV-T aerator becomes uniform when the number of hole decreases. The results in experiments at different air flow rates show that air heating efficiency increase with the air flow rate increase. Outdoor experiment was completed under the real sky. It shows that the variation tendency of heating power close to the solar irradiance, the heating power of whole device has the highest utilization rate at noon. |
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| Keywords: | PV-T utilization aerator thermal characteristic experiment research |
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