Page 276 - Defrosting for Air Source Heat Pump

270 Defrosting for Air Source Heat Pump

Fig. 9.13 Thermal energy taken from the indoor air during defrosting in the five
experimental cases.

Fig. 9.14 Electricity consumption on the compressor and fans during defrosting in the five
experimental cases.

defrosting, the highest values in the five cases are nearly the same, at the range of
3.59–3.68 kJ.
Fig. 9.15 shows the energy supply and effective energy consumption during
defrosting in the five cases. As seen, the total energy supplies are 648.1 kJ in Case
1, 745.8 kJ in Case 2, 808.5 kJ in Case 3, 854.5 kJ in Case 4, and 890.8 kJ in Case 5,