In a continuous belt freezer, fish fillet at a feed rate of 1000 kg h–1 is frozen. The unfrozen fish having moisture content of 85% (wet basis) enters the freezer at 25°C and complete frozen fish exits at –20°C. Properties of fish are: latent heat of crystallization = 330 kJ kg-1, fixed freezing point = –2.5°C, density = 1100 kg m-3, specific heat capacity above freezing point=3.60 kJ kg-1 K-1 and specific heat capacity below freezing point = 1.97 kJ kg-1 K-1. Neglecting other heat losses in the freezer, the power requirement of the compressor (in kW) having a coefficient of performance of 2.50 is,