文中设计了一款新型PV/T一体化空气集热器，建立了新型PV/T空气系统内部传热过程的一维非稳态数学模型，并利用差分法对模型进行了数值计算。根据计算结果对一体化系统的性能及影响因素进行了分析。结果表明：在一定的光照强度下，随着空气质量流量增加，电池板温度Tp逐渐下降，空气温升逐渐降低；而热效率、光电转化效率、联合效率随空气流量的增加有所升高。模型的建立为高性能太阳能PV/T一体化空气集热器的优化设计提供较好理论依据。%In this paper, a new type of integrated solar PV/T air collector is designed. A one-dimensional unsteady mathematical model is developed, the internal heat transfer process is calculated by ifnite difference approach. The performance of PV/T solar air collector is predicted under different parameters and conditions. Results indicate that the temperature of solar cell and outlet air decrease with the increase of air mass lfow rate under the same incident solar intensity. Then, the thermal efifciency, electrical efifciency and total efifciency of PV/T system increase with the rising of the inlet air mass lfow rate. The models provide valuable theoretical basis for the optimal design of high-performance solar PV/T integrated air system.
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