光伏光热与空气源热泵联合供暖系统设计与优化配置研究

Research on design and optimal configuration of combined heating system of photovoltaic photothermal and air source heat pump

针对国家碳减排战略布局及北方居民对清洁采暖的经济性需求,设计了一种光伏、光热、储热一体化供暖系统,并对系统关键组件及设备进行优化配置研究。首先,以光伏、集热器、空气源热泵为主要能量来源,形成多能互补的系统拓扑结构;其次,综合考虑当地收入水平,以系统生命周期碳排放及生命周期费用最小为优化目标,以光伏容量、集热器面积、水箱体积、热泵功率为优化变量,运用Hooke-Jeeves优化算法对系统进行优化;最后,以张家口某地300 m^(2)建筑为例进行系统优化设计。结果表明与电锅炉供暖系统、空气源热泵系统和未优化系统相比,经优化后系统的生命周期费用、碳排放均有显著改善。研究方案具有良好的经济及碳减排性能,可为北方地区清洁供暖提供相应参考。

According to the national carbon emission reduction strategic layout and the economic needs of northern residents for clean heating,an integrated heating system with photovoltaic solar collector and heat storage is designed,and the optimal configuration of key components and equipment of the system is studied.Firstly,photovoltaic,collector and air source heat pump are the main energy sources to form a multi energy complementary system topology.Secondly,considering the local income level,taking the minimum carbon emission and life cycle cost of the system life cycle as the optimization objective,and taking photovoltaic capacity,collector area,water tank volume and heat pump power as optimization variables,the system is optimized by Hooke Jeeves optimization algorithm.Finally,taking a 300 square meter building in Zhangjiakou as an example,the system optimization design and comparative analysis are carried out.The results show that the optimized system has significantly improved the life cycle cost and carbon emissions compared with the electric boiler heating system,air source heat pump system,and the non optimized system.The research scheme has good economic and carbon emission reduction performance,and can provide corresponding reference for clean heating in northern China.