Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lb;/in² and 1000°F. The condenser pressure is 2 lb/in.² The net power output of the cycle is 250 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Step 1 Determine the mass flow rate of steam, in lb/h. m Your answer is correct. Hint Step 2 1536198.045 lb/h Determine the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. Attempts: 3 of 4 used

Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lb;/in² and 1000°F. The condenser pressure is 2 lb/in.² The net power output of the cycle is 250 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Step 1 Determine the mass flow rate of steam, in lb/h. m Your answer is correct. Hint Step 2 1536198.045 lb/h Determine the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. Attempts: 3 of 4 used

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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Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lbf/in² and 1000°F. The condenser pressure is 2 lb/in.² The net power output of the cycle is 250 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Step 1 * Your answer is incorrect. Determine the mass flow rate of steam, in lb/h. m = i 1207000 lb/h
STEP 4 PLS
part a b and c
A medium size power station is used to produce 30 MW net power for a refinery. The station uses steam as the operating fluid and operates according to the Carnot cycle between the pressure limits of 0.4 bar and 35 bar. Steam enters the boiler as a saturated liquid and leaves it as a dry saturated vapour.(ix) State main disadvantages of using the Carnot cycle as the basis for a power station.
An Actual Rankine cycle operates on a boiler and condenser pressure of 2MPa and 20kPa respectively. Steam leaves the boiler at 500C. Steam flows at a rate of 10kg/s in the cycle. The Turbine and Pump Efficiency are provided to be 87% and 89% respectively. a.) Determine the Heat Added to the boiler (kJ/s) b.) Determine the Work done by the pump (kJ/kg) c.) Determine the Thermal Efficiency of the Cycle (%) ROUND OFF ANSWER TO SIX SIGNIFICANT FIGURES PLS USE THE GIVEN VALUES THAT IS HIGHLIGHTED IN THE IMAGE OF THE STEAM TABLE AND SUPERHEATED TABLE PLSS USE THIS VALUES
Modify the cycle in Problem 10.9 to have an isentropic compressor efficiency of 83% and let the temperature of the liquid leaving the condenser be 100 F. Sketch the T-s diagram for the modified cycle and determine, for the modified cycle, (a) the compressor power, in horsepower. (b) the rate of heat transfer from the working fluid passing through the condenser, in Btu/min. (c) the coefficient of performance. Note: Problem 10-9 is a vapor-compression system of R134a with a mass flow rate of 30.59 lb/min.
Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lb/in² and 1400°F. The condenser pressure is 2 lb-/in.² The net power output of the cycle is 250 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Step 1 * Your answer is incorrect. Determine the mass flow rate of steam, in lb/h. m = I lint i 1347451.2 lb/h
In a Rankine cycle steam enters the turbine at 2.5MPa (enthalpies and entropies given) and condenser of 50KPa (properties given), what is the thermal efficiency of the cycle? At 2.5MPa: hg = 2803.1 sg = 6.2575, At 50KPa: sf = 1.0910 sfg = 6.5029 hf = 340.49 hfg = 2305.4 vf = 0.0010300
Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lbf/in.? and 1000 °F. The condenser pressure is 2 lbf/in.2 The net power output of the cycle is 1 x 10° 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 the energy input to the working fluid is provided by heat transfer from hot gaseous products of combustion, which cool as a separate stream from 1490 to 380 °F with a negligible pressure drop. The gas stream can be modeled as air as an ideal gas. Determine, in Btu/h, the rate of exergy destruction in the (a) heat exchanger unit of the steam generator. (b) turbine and pump. (c) condenser. Also calculate the net rate at which exergy is carried away by the cooling water passing through the condenser, in Btu/h. Let To = 60 °F. po = 14.7 Ibf/in.2
Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lb/in² and 1000°F. The condenser pressure is 2 Ib;/in.² The net power output of the cycle is 250 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Step 1 Determine the mass flow rate of steam, in lb/h. m = i lb/h