Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 700 psia and 900°F and leaves as saturated vapor. Steam is then reheated to 800°F before it expands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6 × 104 Btu/s. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 45°F. Use steam tables.   NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.   Determine the pressure at which reheating takes place. Use steam tables. Find: The reheat pressure is  psia. (P4)Find thermal efficiencyFind m dot

Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 800 psia and 900 °F and leaves as saturated vapor. Steam is then reheated to 800 deg F before it expands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6x104 Btu/s. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 45 °F. Show the cycle on a T-s diagram with respect to saturation lines. Determine also the following: the pressure at which reheating takes place, the net power output and thermal efficiency, and the minimum mass flow rate of the cooling water required. A. 741.0 Ibm/s, 39.4%, 62.23 psia B. 641.0 Ibm/s, 49.4%, 62.23 psia C. 641.0 Ibm/s, 39.4%, 62.23 psia D. 641.0 Ibm/s, 39.4%, 72.23 psia

Refrigerant-134a is used as the working fluid in a simple ideal Rankine cycle which operates the boiler at 2000 kPa and the condenser at 24C. The mixture at the exit of the turbine has a quality of 93 percent. Determine the turbine inlet temperature, the cycle thermal efficiency, and the back-work ratio of this cycle.

Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 500°C and is cooled in the condenser at a pressure of 7.5 kPa. Determine the thermal efficiency of the cycle. The thermal efficiency of the cycle is 59.6 %.