光热太阳能与风能互补清洁供暖系统特性分析

Characteristic analysis of the complementary clean heating system of solar thermal energy and wind energy

为解决化石燃料燃烧带来的环境污染问题,文章提出了一种太阳能与风能互补供暖方案,包括太阳能集热系统、储热系统、风能收集系统和热泵系统。通过EBSILON软件将各组件进行合理耦合,对完整系统进行仿真计算与运行特性分析。结果表明,在郑州供暖季期间,冷凝器换热量和循环冷却水出口温度都与太阳辐射能的变化趋势相同,冷凝器换热量在1596.957~2440.327 kW变化,且冷凝器循环冷却水出口温度在87.133~96.155℃波动;聚光场太阳能光学转换效率与太阳直射辐射能变化趋势相反,最大值为68.892%;冷凝器换热量与太阳能集热系统的出口温度变化趋势亦相反。该仿真结果可为太阳能与风能互补供暖系统的设计与工程化应用提供一定科学依据。

Traditional heating methods need to consume a lot of fossil fuels.Direct combustion is not only a waste of resources,but also the discharge of a large number of harmful substances in use,which pollutes the environment.Therefore,new clean energy is needed to replace fossil energy for heating.This paper proposed a complementary heating scheme of solar and wind energy,including solar heating collection system,heat storage system,wind energy collection system and heat pump system.The components were reasonably coupled through EBSILON software,and the complete system was simulated and analyzed.The results showed that during the heating season in Zhengzhou,the heat exchange rate of the condenser and the outlet temperature of the circulating cooling water were the same as the solar radiation energy.The heat exchange rate of the condenser varied from 156.9957 kW to 2440.327 kW,and the outlet temperature of the circulating cooling water of it fluctuated between 87.133℃and 96.155℃.The change trend of the solar optical conversion efficiency of the concentrating field was opposite to the direct solar radiation energy,and the maximum value was 68.892%.The change trend of the condenser heat exchange and the outlet temperature of the solar heat collection system was also opposite.The simulation results can provide a certain scientific basis for the design and engineering application of solar and wind energy complementary heating systems.