1. A nuclear reactor of efficiency 33% generates 1000 MWe. The waste heat is released to the environment by evaporation in a cooling tower. What is the rate of water evaporation in kg/s? The latent heat of evaporation of water is 2400 kJ/kg.

2. A 3300 MWt NPP operating at 33% efficiency. The waste heat is rejected to a condenser operating at a temperature difference of 12 C. Calculate the cooling water mass flow rate in kg/s. Use specific heat capacity of water as 4.18 x 103 J/kg.C.