A nuclear power plant based on the Rankine cycle operates with a boiling-water reactor to develop net cycle power of 3 MW. Steam exits the reactor core at 100 bar, 520°C and expands through the turbine to the condenser pressure of 1 bar. Saturated liquid exits the condenser and is pumped to the reactor pressure of 100 bar. Isentropic efficiencies of the turbine and pump are 81% and 78%, respectively. Cooling water enters the condenser at 15°C with a mass flow rate of 114.79 kg/s. Determine Steam generator a) the thermal efficiency. b) the temperature of the cooling water exiting the condenser, in °C. Pump Turbine Condenser

A nuclear power plant based on the Rankine cycle operates with a boiling-water reactor to develop net cycle power of 3 MW. Steam exits the reactor core at 100 bar, 520°C and expands through the turbine to the condenser pressure of 1 bar. Saturated liquid exits the condenser and is pumped to the reactor pressure of 100 bar. Isentropic efficiencies of the turbine and pump are 81% and 78%, respectively. Cooling water enters the condenser at 15°C with a mass flow rate of 114.79 kg/s. Determine Steam generator a) the thermal efficiency. b) the temperature of the cooling water exiting the condenser, in °C. Pump Turbine Condenser

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Problem 1. Consider a vapor power plant that operates in the Simple Ideal Rankine cycle. Water vapor enters the turbine to 3 MPA and 450 ° C and is condensed in the condenser at a pressure of 15 kPa. Part 1. Diagram T-S indicating the values of the properties. Part 2. Determine: 1) the properties of State 1 (p₁; t₁; v₁; ui; hi; sı). 2) The properties of State 2 (T2; P2; V2; U2; H2; S2). 3) The pump works (wbomba) and the turbine (wurbina). 4) The heats: boiler (QH) and condenser (QL). 5) The thermal efficiency of this cycle.
In a cogeneration system, a Rankine cycle operates with steam entering the turbine at 800 lb/in.², 700°F, and a condenser pressure of 180 lb/in.² The isentropic turbine efficiency is 90%. Energy rejected by the condensing steam is transferred to a separate process stream of water entering at 250°F, 140 lb/in.2 and exiting as saturated vapor at 140 lb/in.2 The mass flow rate of the process stream is 48,000 lb/h. Let To -70°F, po - 14.7 lb//in.² Step 1 Determine the mass flow rate for the working fluid of the Rankine cycle, in lb/h. mcycle Step 2 Hint W Your answer is correct. cycle = 54852.5 Determine the net power output for the cycle, in Btu/h. Hint Step 3 Your answer is correct. 7087421.984 € = i lb/h eTextbook and Media Save for Later Btu/h Evaluate an exergetic efficiency for the overall cogeneration system. The exergetic efficiency is defined as the net rate of exergy output divided by the net rate of exergy input. Attempts: 1 of 4 used % Attempts: 2 of 4 used Attempts: 0 of 4…
My Question: In the steam plant problem#2, the reheater developed a leak and it was decided to run the plant bypassing the reheater. Determine the thermal efficiency and steam flow rate to develop the same power output.Problem 2 (In a reheat cycle steam enters the high-pressure turbine at 40 bar and 400C. It expands isentropically to 6 bar and is reheated at constant pressure to 400C. This steam is expanded isentropically in the low pressure turbine to the condenser pressure of 0.1 bar. Calculate the thermal efficiency and steam consumption for 10 MW output.)
1453 The Rankine cycle is the process widely used by power plants such as coal-fired power plants or nuclear reactors. Such a steam power plant running on Rankine cycle has steam entering HP turbine at 20 MPa, 500°C and leaving LP turbine at 90% dryness. Considering condenser pressure of 0.005 MPa and reheating occurring up to the temperature of 500°C determine, (a) The pressure at which steam leaves HP turbine (b) The thermal efficiency
Water is the working fluid in a supercritical ideal reheat cycle. Steam enters the first-stageturbine at 320 bar, 640°C, and expands to 120 bar. After being reheated it enters thesecond-stage turbine at a temperature of 600°C, where is expands to a pressure of 0.06bar. The steam is then condensed until it is a saturated liquid.Question:Determine:(a) The thermal efficiency of the cycle(b) The back work ratio of the cycle
5. Consider a steam power plant operating on the ideal Rankine cycle. The steam enters the turbine at 5 MPa, 350 °C and is condensed in the condenser at a pressure of 15 kPa. Determine the thermal efficiency of the cycle if the steam were superheated to 750 °C. Draw the schematic and Ts diagram.
Water is the working fluid in a Rankine cycle. Steam exits the steam generator at 1500 lbf/in.² and 1100°F. Due to heat transfer and frictional effects in the line connecting the steam generator and turbine, the pressure and temperature at the turbine inlet are reduced to 1400 lbf/in.² and 1000°F, respectively. Both the turbine and pump have isentropic efficiencies of 85%. Pressure at the condenser inlet is 2 lbf/ in.², but due to frictional effects the condensate exits the condenser at a pressure of 1.5 lbf/in.² and a temperature of 110°F. The condensate is pumped to 1600 lbf/in.² before entering the steam generator. The net power output of the cycle is 1x 10⁹ Btu/h. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Determine for the cycle: (a) the mass flow rate of steam, in lb/h. (b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. (c) the percent…