(Solved): 2. A nuclear power plant based on the Rankine cycle operates with a boiling-water reactor to develo ...

2. A nuclear power plant based on the Rankine cycle operates with a boiling-water reactor to develop net cycle power of $3\mathrm{MW}$. Steam exits the reactor core at $100\mathrm{bar},520^{?}\mathrm{C}$ and expands through the turbine to the condenser pressure of 1 bar. Saturated liquid exits the condenser and is pumped to the reactor pressure of 100 bar. Isentropic efficiencies of the turbine and pump are $81\%$ and $78\%$, respectively. Cooling water enters the condenser at $15^{?}\mathrm{C}$ with a mass flow rate of $114.79\mathrm{kg}/\mathrm{s}$. Determine a. the thermal efficiency. b. the temperature of the cooling water exiting the condenser, in ${}^{?}\mathrm{C}$.