论文部分内容阅读
针对不同室内气流组织下空气温度分布特征的差异,首次建立单层非晶硅半透明光伏窗二维稳态传热模型,并验证模型的可靠性。在此基础上,采用数值模拟的方法,研究比较2种典型室内气流组织下单层非晶硅半透明光伏窗的传热性能。结果表明,分层空调系统中光伏窗表面温度垂直梯度分布明显,接近2.2℃/m;而混合通风系统下光伏窗表面温度则沿送风气流流动方向显著增加。在模拟工况下,增加送风速度有利于降低光伏模块的工作温度,改善运行工况,但效果并不显著。夏季工况下,增加送风速度不利于减少光伏窗室内得热。对于不同气流组织不同季节工况下,应采取不同措施优化光伏窗的运行工况。
According to the difference of air temperature distribution characteristics in different indoor airflows, a two-dimensional steady-state heat transfer model of single-layer amorphous silicon translucent photovoltaic window was established for the first time and the reliability of the model was verified. On this basis, numerical simulation is used to study the heat transfer performance of single-layer amorphous silicon translucent photovoltaic windows under two typical indoor airflow configurations. The results show that the vertical gradient of PV window surface temperature distribution in the stratified air-conditioning system is obviously close to 2.2 ℃ / m, while the surface temperature of PV window in hybrid ventilation system increases along the flow direction. Under simulated conditions, increasing the blowing speed is conducive to reduce the operating temperature of photovoltaic modules, improve operating conditions, but the effect is not significant. Summer conditions, increasing the speed of the air is not conducive to reducing the photovoltaic window indoors get hot. For different airflow conditions in different seasons, different measures should be taken to optimize the operation of photovoltaic windows.