相变储能光伏太阳能热泵干燥系统的研究

摘要

The experimental platform of phase change energy storage photovoltaic solar heat pump drying system is estab-lished in this paper ,it is introduced the way of the system and the matching of photovoltaic solar heating evaporator and dc compressor is calculated and finally the experiment data is analyzed in detail .It is concluded that when the solar radiation amount is 800 W/m2 and photovoltaic solar heating evaporator area is 12 m2 ,heat capacity is 10 kW and solar photovoltaic power generation is 6 .2 kW·h ,in which the photovoltaic power consumption is greater than the compressor ,meeting the op-eration requirements without additional power .The COP of system is 3 .25 .The phase change energy storage can solve run-ning problem of the system ,which is caused by the amount of solar irradiance fluctuation ,and so it has significant energy saving and environmental protection .%建立了相变储能光伏太阳能热泵干燥系统实验平台，介绍了系统的运行方式以及太阳能光伏集热蒸发器与直流压缩机的匹配计算，最后对实验数据进行了分析。结果表明，太阳能辐照量为800 W／m2、光伏集热蒸发器面积为12m2的条件下，系统制热功率为10kW，太阳能光伏集热蒸发器发电量为6．2kW·h，大于直流压缩机的耗电量，满足供电要求；实验所得系统COP为3．25。相变储能可以解决太阳辐照波动导致的系统运行不稳定问题，具有显著的节能性和环保性。