Undergraduate researchers at the University of Tennessee have designed a new power cycle that takes 1,000 MW of heat from a nuclear reactor at 450°C, converts part of it into 400 MW of net electric power, and discharges heat at low temperature in a cooler. The cooler uses 15,000 kg/s of seawater, which enters the cooler at 15°C and 1 atm, and exits at 25°C and 1 atm. Treat seawater as an incompressible fluid with density 1,000 kg/m3 and specific heat 4,000 J/kg-K.
Does this system violate the 1st and/or 2nd law of thermodynamics?