1. The problem statement, all variables and given/known data Adiabatic Steam turbine produces 4000 kW Steam is fed at 21 bar/475 deg C Exhaust is saturated steam (P=0.1bar) Exhaust is fed into condenser where it is cooled to 30 deg C Problem asks for flow rate of cooling water supplied to condensener if water enters at 15 deg C and is heated to 25 deg C 2. Relevant equations Turbine: Assume Q = 0 H2 - H1 = -W m dot steam * (H2 - H1) = - Power (or W dot) Condenser: Power (in) = Power(out) m dot steam in (H steam in) + m dot water in (H water in) = m dot steam out (H steam out) + m dot water out (H water out) m2U2 - m1U1 - H'(m2 - m1) = 0 3. The attempt at a solution i fond the mass flow rate of steam going into turbine using m dot * delta H = -Power - 4000 kW (1 kJ/s / 1 kW) = m dot steam (2584.8 kj/kg - 3411.3 kJ/kg) mass flow of steam = 4.84 kg/s then when i try to use the last equation in the above section I get stuck because I can't figure out U2 or the outlet states. H' = 2779.7 kj/kg, U1 = 2438.0 kJ/kg, m1 = 25000 kg, m2 =? please help!