FUND OF ENG THERMODYN(LLF)+WILEYPLUS
9th Edition
ISBN: 9781119391777
Author: MORAN
Publisher: WILEY
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In a steam power plant that operates based on a Rankine cycle, the operating pressures of the steam generator and the condenser are 10,000 and 10 kPa, respectively. If the turbine inlet stream is saturated vapor and the condenser outlet flow is saturated liquid, determine the specific heat transfers in the steam generator and the condenser, the specific work involved in the turbine and the pump, and the thermal efficiency and the BWR of the cycle. Also, if the power plant produces 250 MW power, determine the mass flow rate of the cycle’s working fluid.
Superheated water vapor enters the turbine at 5Mpa and 4000C. The water leaves the condenser as saturated liquid at a pressure of 30kPa, and the turbine efficiency is 91%. The net power output of the cycle is 100MW. Determine the thermal efficiency.
Water enters the turbine of an ideal Rankine cycle as superheated vapor at 10 MPa and 600°C. If the condenser pressure is 10 kPa, Calculate the thermal efficiency of the system.
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- A steam power plant operates on a Rankine cycle. Steam enters the turbine at 1,000 psia and 1,200 F and is cooled in the condenser at a pressure of 2 psia. The power out of the turbine is 5.0E8 Btu/hr and the mass flow rate of the steam going through the turbine is 262 Ibm/s. In the question that follows, select the answer that is closest to the true value. What is the enthalpy of the steam at the turbine exit in units of Btu/lbm? O 859 O 1090 O 976 O 759 O o o oarrow_forwardA 259-MW steam power plant operates on the Rankine cycle but with turbine and pump efficiencies of 90%. The steam enters the turbine at 10,000 kPa and 550°C. It discharges to the condenser at 50 kPa. Determine the rate of heat rejection to the environment in the condenser in MW.arrow_forwardIf the thermal efficiency of a steam power plant operating on the simple ideal rankine cycle is 26% and the steam is condensed in the condenser at a pressure of 75 kpa and Enthalpy of the steam which leave the turbine is 3166 kj/kg. determine the steam conditions (pressure and temperature ) which enters the turbine of the power plant.arrow_forward
- A power plant running on the Ideal Rankine cycle heats water at a pressure of 13 MPa. The heating inside the boiler happens at constant pressure until the temperature of the steam becomes 600°C. The steam undergoes a reversible adiabatic expansion inside the turbine. Operating pressure of the condenser is at 900 kPa. Use a steam table to find the properties of steam. Draw the T-S diagram with the constant pressure lines, also label the given properties. Determine the following: a. Quality of steam at the turbine exit in % b. Approximate Pump work in kJ/kg c. Turbine Work in kJ/kg d. Heat added in kJ/kg e. Rankine Cycle Efficiencyarrow_forwardConsider a steam power plant operating on a simple ideal Rankine cycle. Steam enters the turbine at 15 MPa and 650°C and is condensed in the condenser at a pressure of 15 kPa. Determine the Qin (kJ/kg). (Use 2 decimal places for the final answer.)arrow_forwardA steam power plant operates on the simple ideal Rankine cycle. Steam enters the turbine at 4 MPa, 500 degrees celcius and is condensed in the condenser at a temperature of 40 degrees celcius. draw and label the schematic diagram and the pV and TS planes. (a) Show the cycle on a T-s diagram. If the mass flow rate is 10 kg/s, determine (b) the thermal efficiency of the cycle (c) the net power output in MW.arrow_forward
- Follow Given Required Solution Format. A power plant operating on a Rankine cycle has steam entering the turbine at 500°C and 2 MPa. The turbine and pump efficiencies are 65 and 80 percent, respectively. Water enters the pump at 10 Kpa at a rate of 162,000 Kg/hr. Calculate the (a) actual turbine power (b) ideal and actual pump power(c) ideal and actual heat added to the water in the boilerarrow_forwardSteam is generated at a pressure of 8MPa and leaves the steam generator at 450°C. After the expansion to 700 kPa, the steam undergoes reheat and expands again in a low-pressure turbine. the condenser pressure is 8kPa. The steam flows at the rate of 2.63 x 10 ^ 5 kg/h. If the power plant operates in a Rankine cycle, determine the net power generated and heat transfer in the condenser.arrow_forwardA piston driven steam engine and boiler runs according to a modified Rankine cycle. If the steam leaves the boiler at 150 degrees Celsius, and 100 kPa, determine the engine's efficiency. Note that the specific volume at this pressure is 0.001043 m3/kg, and the enthalpy is 417.51 kj/kg. also, note that there is no condenser or pump. The boiler is sealed, and not replenished while the exhaust steam exits to open atmosphere.arrow_forward
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