摘要
建立基于分形换热器的聚光太阳能光伏光热一体化(PV/T)系统三维物理模型和稳态传热数学模型。采用控制容积法对系统模型进行求解,获得层流状态下不同雷诺数、不同聚光条件下系统内冷却流体的速度场分布、电池温度分布以及系统的电、热性能参数。计算结果表明:在一定范围热电联合效率随雷诺数的增大而增大,随聚光强度增强而增加,随入口温度的降低而增大;太阳电池板表面最大温差随雷诺数增大而减小。
Based on the fractal heat sink, developed a three-dimensional geometric model and steady heat transfer mathematical model for a concentrating photovoltaic thermal （PV/T） system. The governing equations were solved by control-volume method, the velocity distribution of the cooling media in the channel of fractal heat sink and the temperature distribution of the solar cell were presented under laminar statement for different Reynolds number and different concentration rate, the performance parameters of system were given at the same time. The calculated results show that the thermal and electrical efficiency increase with the rising of within a certain range Reynolds number and solar concentrating intensity. The maximum temperature difference decreases with the increasing of Reynolds number.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2017年第11期3036-3042,共7页
Acta Energiae Solaris Sinica
基金
国际科技合作专项(2013DFA51000)
江西省对外科技合作项目(20142BDH80024)
江西省普通本科高校中青年教师发展计划访问学者专项
关键词
分形换热器
PV
T
数值计算
热电性能
fractal heat sink
PV/T
numerical calculation
thermal and electrical performance
