A refrigerating plant works between temperature limits of – 5°C and
25°C. Taking that the working fluid ammonia is dry saturated at exit to the compressor. Using the Carnot cycle calculate the amount of ice formed during a period of 24 hours. The ice is to be formed at 0°C from water at 15°C and 6.4 kg of ammonia is circulated per minute. Specific heat of water is 4.187 kJ/kg and latent heat of ice is 335 kJ/kg.
NB: Entropy at entry to compressor is the same as at exit. Entropy is the same at exit to condenser and at entry to evaporator