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Engineering, 16.04.2020 02:06 Kiona3815

Consider an ideal Rankine cycle (i. e. processes in all 4 devices are internally reversible) with water as a working fluid. Saturated vapor enters the turbine at p1 = 14 MPa, and the condenser pressure is p2 = p3 = 8 kPa. Water exits the condenser (state 3) as saturated liquid. The mass flow rate of water/steam flowing through the power plant components is ˙ms = 120 kg/s. The cooling water passing through the condenser increases in temperature by ∆Tc = 20◦C. Determine: (a) the net power developed, W˙ t − W˙ p, in MW. (b) the rate of heat transfer to the steam passing through the boiler, Q˙ in, in MW. (c) the overall thermal efficiency η. (d) the mass flow rate of the cooling water passing through the condenser, ˙mc, in kg/s. You may model the cooling water as an incompressible substance with a constant specific heat of c = 4.18 kJ/kg·K

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