基于TRNSYS的太阳能-热水源热泵复合供暖系统运行优化

Optimization for Solar-thermal Water Source Heat Pump Hybrid Heating System Based on TRNSYS

针对太阳能供暖技术与热泵供暖技术的不足,提出了一种太阳能-热水源热泵复合供暖系统,并以西藏日喀则地区某项目为研究对象,利用TRNSYS仿真模拟软件建立太阳能-热水源热泵复合供暖系统模型,模拟分析该供暖系统的运行特性,并对系统的经济性进行了分析,然后利用Hooke-Jeeves优化算法对供暖系统关键参数进行优化。结果表明:西藏地区太阳能-热水源热泵复合供暖系统能够高效稳定运行,实现了对太阳能由高温到低温的梯级利用,供暖季系统季节能效比可达4.43;相比于电锅炉供暖,复合供暖系统具有更高的经济性,静态回收期为5.3年;优化后系统能耗减少,供暖季系统季节能效比提高了7.9%。

In view of the inadequacies of solar heating technology and heat pump heating technology,a solar-thermal water source heat pump composite heating system was designed.Taking a project in the Tibet Xigaze area as the research object,TRNSYS simulation software was used to establish a solar-thermal water source heat pump composite heating system model,conducting simulation analysis of the running characteristics of the heating system and analyzing the economy of the system.Then,the Hooke-Jeeves optimization algorithm was used to optimize the key parameters of the heating system.The results show that the solar-thermal water source heat pump composite heating system in Tibet can operate efficiently and stably,realizing the cascading utilization of solar energy from high temperature to low temperature.During the heating season,the system’s average coefficient of performance reaches 4.43.Compared with electric boiler heating,the composite heating system has a higher economy,and the static payback period is 5.3 years.After optimization,energy consumption is reduced,leading to a 7.9%enhancement in the system’s average coefficient of performance during the heating season.