Question

Water is the working fluid in an ideal Rankine cycle. Superheated steam enters the turbine at a pressure of 8 MPa and temperature of 480 °C. The condenser pressure is 8 kPa. The turbine and pump have isentropic efficiencies of 85% and 70%, respectively. (a) Draw the Schematic and T-s diagram of the cycle (b) Determine the thermal efficiency, in % (c) Determine the mass flow rate of steam, in kg/hour, for a net power output of 100MW (d) Determine the mass flow rate of condenser cooling water, in kg/hour, if the cooling water enters the condenser at 15 °C and exits at 35 °C with negligible pressure change

          Water is the working fluid in an ideal Rankine cycle. Superheated steam enters the
turbine at a pressure of 8 MPa and temperature of 480 °C. The condenser pressure is
8 kPa. The turbine and pump have isentropic efficiencies of 85% and 70%, 
respectively.
(a) Draw the Schematic and T-s diagram of the cycle
(b) Determine the thermal efficiency, in %
(c) Determine the mass flow rate of steam, in kg/hour, for a net power output of
100MW
(d) Determine the mass flow rate of condenser cooling water, in kg/hour, if the
cooling water enters the condenser at 15 °C and exits at 35 °C with negligible
pressure change

Water is the working fluid in an ideal Rankine cycle. Superheated steam enters the
turbine at a pressure of 8 MPa and temperature of 480 °C. The condenser pressure is
8 kPa. The turbine and pump have isentropic efficiencies of 85% and 70%,
respectively.
(a) Draw the Schematic and T-s diagram of the cycle
(b) Determine the thermal efficiency, in %
(c) Determine the mass flow rate of steam, in kg/hour, for a net power output of
100MW
(d) Determine the mass flow rate of condenser cooling water, in kg/hour, if the
cooling water enters the condenser at 15 °C and exits at 35 °C with negligible
pressure change

Added by Seth S.

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