Page 272 - Defrosting for Air Source Heat Pump

266 Defrosting for Air Source Heat Pump

Fig. 9.7 The fluctuation of melted frost temperature collected in Cylinder D in the five
experimental cases.

Fig. 9.8 The fluctuation of refrigerant volumetric flow rate at defrosting mode in the five
experimental cases.

shows the fluctuation of refrigerant volumetric flow rate at defrosting mode in the five
experimental cases. Obviously, these curves reached different peaks at different times
due to different frost accumulations. It is 1.39 L/min at 145 s in Case 1, 1.40 L/min at
155 s in Case 2, 1.35 L/min at 160 s in Case 3, 1.34 L/min at 170 s in Case 4, and
1.32 L/min at 175 s in Case 5, respectively. The five curves, the same as the previous