论文简介如下：
空气源热泵系统的除霜过程通常伴随着制热中断、高能耗以及不可避免的系统性能下降问题。本研究提出一种采用表面改性和主动气流技术的抑霜型空气源热泵系统，该系统通过间歇作用的高速气流去除超疏水换热器表面的未冻结冷凝液滴抑制霜层生长，从而降低除霜频率甚至完全避免除霜过程。研究探讨了霜层生长速率、抑霜能耗以及系统运行特性之间的耦合关系，揭示了环境温度和湿度对系统性能的综合影响。研究评估了该系统在中国54个典型城市内的运行状况，对比了不同气候分区内相较于常规系统的性能提升效果。研究结果表明，该抑霜热泵系统在夏热冬冷地区表现出显著的节能潜力，相较普通热泵系统的能效（COP）提升可达21%。
The defrosting process of air-source heat pump systems are often associated with deficits of heating interruption, high energy consumption, and inevitability of system performance degradation. To address these issues, an anti-frosting air source heat pump that employs surface modification and active airflow technology is introduced in the present work. It achieves frost suppression by removing unfrozen condensate droplets on the superhydrophobic heat exchanger with high-speed airflow, thereby reducing the frequency of defrosting or eliminating it altogether. The study investigates the complex interactions between the frost growth rate, energy consumption of anti-frosting and the system operation state, ultimately revealing the comprehensive impact of ambient temperature and humidity on system performance. To this end, a coupling model of frosting and heat pump system is developed, the influence of ambient parameters on the airflow parameters and system operation characteristics is analyzed, and the system performance map with varying ambient parameters is obtained. The study simulates the operation of the system under heating design parameters of 54 typical cities in China, comparing the performance enhancements under different climatic zones. The findings demonstrate that the anti-frosting system exhibits significant energy-conservation potential in hot summers and cold winters zone, with a COP improvement up to 21%.
