!Required informationSteam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankinecycle at 1,250 psia and 900°F and leaves as saturated vapor. Steam is then reheated to 800°F before itexpands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6 x 104 Btu/s.Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenserat 45°F. Use steam tables.Determine the thermal efficiency. Use steam tables. (You must provide an answer before moving on to the next part.)The thermal efficiency is%.

Given:The pressure at the inlet to the high-pressure turbine, The temperature at the inlet to the…

! Required information Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 1,250 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 × 10¹ 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. Determine the thermal efficiency. Use steam tables. (You must provide an answer before moving on to the next part.) The thermal efficiency is %.

! Required information Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 1,250 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 × 10¹ 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. Determine the thermal efficiency. Use steam tables. (You must provide an answer before moving on to the next part.) The thermal efficiency is %.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter22: Condensers

Section: Chapter Questions

Problem 7RQ: When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be...

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When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be higher in temperature than the entering air temperature.
Problem Using Separate Reheater An Actual Reheat Cycle with one-stage reheating is executed with steam expanding initially from the throttle at 8 MPa and 485°C. The steam enters a Reheater at 1.425 MPa, 305°C. The steam leaves the reheater at 485°C_with a pressure drop of 425 kPa. The steam leaves the Turbine at 35°C after 2nd expansion with 95%quality. The condensate is subcooled by 20°. Turbine mechanical efficiency, 78%; Generator output 40MW at 92% efficiency. Determine For Actual cycle (a) Thermal efficiency in % (b) Steam rate in kg/kwh (c) Heat rate in kJ/kwh For Actual Engine (d) Indicated engine efficiency in % (e) Brake engine efficiency in % (f) Combined engine efficiency in % (g) mass flow of steam in kg/h
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In a steam turbine plant steam expands in the high pressure turbine from 5000kPa, 500°C to 500kPa with an isentropic efficiency of 0.9. It is then reheated isobarically to 500°C before entering the low pressure turbine. In the low pressure turbine the steam expands to dry saturated, 5kPa. The condensate leaves the condenser with 4° of undercooling. Determine: (a). the condition of the high presfsure turbine exhaust (b). the isentropic efficiency of the low pressure turbine (c). the specific steam consumption for a turbine output power of 7.5MW (d). the Rankine efficiency including the feed pump
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Steam turbine receives 400000 kg/hr of steam throttled in actual reheat Rankinecycle with two stages reheating, steam enters the turbine at 14.546 Mpa and 500.546oC. The one reheater has 10.0546 Mpa 460.546oC and the other one has 5.0546 Mpa and 450.546oC. It is condensed in the condenser at a pressure of 10.546 kPa. For the generator output of 100000kW at 90% efficiency A. Draw only the schematic diagram also the T-S
Steam turbine receives 400000 kg/hr of steam throttled in actual reheat Rankinecycle with two stages reheating, steam enters the turbine at 14.546 Mpa and 500.546oC. The one reheater has 10.0546 Mpa 460.546oC and the other one has 5.0546 Mpa and 450.546oC. It is condensed in the condenser at a pressure of 10.546 kPa. For the generator output of 100000kW at 90% efficiency. Calculate (a) the combined thermal efficiency, % and (b) the actual condition of exhaust steam, %. Show complete soln.
1. In an ideal reheat-regenerative cycle, steam enters the turbine at 6 MPaa and 400°C. After expansion to 1.4 MPaa steam is withdrawn and reheated to 300°C. Extractions for regenerative heating occur at 0.15 MPaa and 1.4 MPaa and the condenser pressure is 0.01MPaa. Use mass flowrate of 1 kg/s. a. Sketch the schametic diagram showing the correct state points and its components b. Sketch the T-s diagram showing the states
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A vapor compression refrigeration cycle uses refrigerant-134a as its working fluid. The condenser pressure is 800 kPa and the evaporator temperature is -20 C. The compressor has an isentropic efficiency of 80 percent. The mass flow rate is 1.7489 kg/s. In the question that follows, select the answer that is closest to the true value. What is the heat going to the evaporator in units of kW?
In a reheat cycle steam at 8.0 MPa and 485C enters the turbine and expands to 1.4 MPa. Atthis point, the steam is withdrawn and passed through a reheater. It re-enters the turbineat 1.3 MPa and 720°C. Expansion now occurs to the condenser pressure of 0.006 MPa.Forthe cycle and 1 kg of steam determine Q.,Wn, W, e, and thesteam flow for an engine and For the engine output of 40,000kW.
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