非晶硅太阳能光伏/光热空气集热器性能对比实验研究

文章设计了新型非晶硅太阳能PV/T空气集热器,该空气集热器能够解决传统太阳能PV/T热水器在高温波动情况下,晶硅电池热应力大的问题,同时避免了冬季管道发生霜冻的现象。文章通过实验对比,分析了非晶硅太阳能PV/T空气集热器、单独非晶硅光伏电池和传统太阳能空气集热器的能量效率和[火用]效率的差异。分析结果表明:非晶硅太阳能PV/T空气集热器的平均热效率为45.70%,比传统太阳能空气集热器的平均热效率降低了约25.88%;当空气质量流量增大至0.048 kg/s时,非晶硅太阳能PV/T空气集热器中的非晶硅光伏电池的平均电效率高于单独非晶硅光伏电池,它们的平均电效率分别为4.70%,4.54%;非晶硅太阳能PV/T空气集热器的总[火用]效率高于传统太阳能空气集热器的热[火用]效率和单独非晶硅光伏电池的电[火用]效率,非晶硅太阳能PV/T空气集热器总[火用]效率最大值为7.14%。文章的分析结果为非晶硅太阳能PV/T空气集热器的推广提供了参考。

Performance comparative experimental studyof amorphous silicon solar photovoltaic/thermal air collector

The amorphous silicon solar photovoltaic/thermal(PV/T)air collector was proposed in this paper,which can solve the problems of large thermal stressunder temperature fluctuation and avoid the pipe waterfrost phenomenon of the traditional solar PV/T water collector using crystalline silicon cells in winter.The article analyzed the differencein energy and exergy efficiency of theamorphous silicon solar PV/T air collector,the single amorphous silicon photovoltaic cells and the traditional solar air collector.The analysis results show that the average thermal efficiency of the amorphous silicon solar PV/T air collector is 45.70%,which is about 25.88%lower than the average thermal efficiency of the traditional solar air collector;when the air mass flow rate increases to 0.048 kg/s,the average electrical efficiency of the amorphous silicon photovoltaic cells in the amorphous silicon solar PV/T air collector is higher than that of the single amorphous silicon photovoltaic cells,and their average electrical efficiencies are 4.70%and 4.54%respectively;The total exergy efficiency of the amorphous siliconsolar PV/T air collector is higher than the thermal exergy efficiency of the traditional solar air collector and the electricity exergyefficiency of the single amorphous silicon photovoltaic cells.The maximum total exergy efficiency valueof the amorphous silicon solar PV/T air collector is 7.14%.The analysis results of the article provide references for the promotion of amorphous silicon solar PV/T air collector.