冷凝热回收地源热泵系统运行仿真研究

Study on the Operation Simulation of Ground Source Heat Pump System with Condensation Heat Recovery

根据经验模型与样本数据在TRNSYS平台上建立开发了冷凝热回收地源热泵系统仿真模型,以夏热冬冷地区的上海市宾馆建筑为例,利用开发模型研究了冷凝热回收地源热泵系统长期运行的效益。仿真计算结果表明,与传统地源热泵+燃气锅炉系统相比,冷凝热回收地源热泵系统中长期运行能保持土壤温度稳定,土壤温升减少了76%,运行20年一次能源标准煤消耗量减少10%,冷凝热回收改造动态投资回收期为4年,具有更好的稳定运行与环保节能效益。

Based on the empirical model and sample data,a simulation model of the condensation heat recovery ground source heat pump system was established and developed on the TRNSYS platform.Taking Shanghai City buildings in hot summer and cold winter areas as an example,the development model was used to study the long-term operation of the condensation heat recovery ground source heat pump system.Benefit.Simulation results show that compared with the traditional ground source heat pump+gas boiler system,the condensation heat recovery ground source heat pump system can keep the soil temperature stable during medium and long term operation,reduce the soil temperature rise by 76%,and reduce the energy standard coal consumption once every 20 years of operation.10%,the dynamic investment payback period for condensation heat recovery transformation is 4 years,which has better stable operation and environmental protection and energy savingbenefits.