The simulation results indicated that the air flow, airside pressure drop, water flow and flux of heat exchange in water side decreased with the increase of frosting time, and the airside pressure increased.

• 模拟结果表明，随着结霜量的增加，空气侧换热器的换热量减小，风量也将逐渐减小，而阻力却迅速增加；水侧换热器的换热量减小，水流量也减小。