超低温空气源热泵供暖系统的模拟分析

Simulation analysis of ultra-low temperature air source heat pump heating system

运用TRNSYS软件搭建空气源热泵供暖系统模型导入实测数据,通过仿真计算得到仿真数据。通过供暖季模拟结果与实测结果的比较,证明超低温空气源热泵供暖系统在严寒地区供暖的可行性,并提出优化方案:通过室外温度的变化区间自动调整空气源热泵的供水温度区间,优化方案在整个供暖季的总制热量约867.88 MW,原始方案在整个供暖季的总制热量约819.14 MW,制热量提高约5.95%。

The model of air source heat pump heating system is built by TRNSYS,and the simulation results is obtained by inputting the measured data to the model.Comparing the simulation results with the measured results in the heating season,the feasibility of using the ultra-low temperature air source heat pump heating system in severe cold areas for heating is proved.An optimization scheme is provided:The water supply temperature range of the air source heat pump is automatically adjusted by the variation range of outdoor temperature.The total heating capacity of the optimized scheme is about 867.88 MW in the whole heating season,while the original one is about 819.14 MW.The heating capacity has been raised by about 5.95%after the optimization.