1. A steam Rankine cycle has the following properties: Boiler pressure 10 MPa, superheat steam temperature 500°C, adiabatic turbine with an 85% efficiency, condenser pressure kPa, pump is adiabatic and reversible. The boiler receives heat from a thermal reservoir 1800 K (simulating a combustion heat source). The condenser dumps heat to the environment at 20°C. The plant produces a net power output of 600 MW (a typical valu (a) Find the values of h and s at each of the points in the cycle. Note that S4/S3. (b) Find the steam flow in the cycle (kg/s). (c) Find Qin (MW). (d) Find the cycle efficiency (Wnet/qin). W. pump 2 Pump Combustion - 1800 K Equi Boiler Condenser Qout 20°C 3 Turbine W turbine

1. A steam Rankine cycle has the following properties: Boiler pressure 10 MPa, superheat steam temperature 500°C, adiabatic turbine with an 85% efficiency, condenser pressure kPa, pump is adiabatic and reversible. The boiler receives heat from a thermal reservoir 1800 K (simulating a combustion heat source). The condenser dumps heat to the environment at 20°C. The plant produces a net power output of 600 MW (a typical valu (a) Find the values of h and s at each of the points in the cycle. Note that S4/S3. (b) Find the steam flow in the cycle (kg/s). (c) Find Qin (MW). (d) Find the cycle efficiency (Wnet/qin). W. pump 2 Pump Combustion - 1800 K Equi Boiler Condenser Qout 20°C 3 Turbine W turbine

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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1. Consider the following schematic of a power plant (operating in what is called a 'Rankine Cycle') Turbine Steam generator Condenser Coling water Economiaer The power plant control room reports that the plant is operating continuously at the following peak load conditions: a. Power to pump = 300KW b. Rate of steam flow = 25 kg/s c. Cooling water temperature at condenser inlet = 13 C d. Cooling water temperature at condenser outlet = 34 C Additionally, the following measurements were made at various points in the piping connecting the power plant components Data Pressure Temp. Quality enthalpy Specific Velocity (kJ/kg) point (kPa) volume (m/s) (m3/kg) (C) (x) 1 6200 2 6100 43 5900 177 ---- 4. 5700 493 ----- 5 5500 482 ----- 6 103 0.94 183 7 96 43 -----
An ideal Rankine cycle operates between the pressure limits of 15 MPa in the boiler and 50 kPa in the condenser. The boiler generates steam at a mass flow rate of 50 kg/ s and it enters the turbine at a temperature of 1100°C. a) Calculate the net power output of the cycle, b) Calculate the thermal efficiency of the cycle.
n an ideal rankine cycle. Steam is generated at 4.1 mpa and 480C. The condenser is at 32C. For an engine with the same end states, determine its thermal efficiency, steam rate, and mep. Considering the engine only, assume the brake engine efficiency to be 78%, the generator efficiency 92%, the steam flow rate is 163,600 kg/hr. Compute the output of the combined unit.
A reheat-regenerative Rankine cycle uses steam at 8.4 MPa, 560°C and expands to 0.7 MPa. The cycle includes one steam extraction stage for regenerative feedwater heating the remainder at this point being reheated to 540°C. The open feedwater heater pressure is 2 MPa. The condenser pressure is 0.01 MPa. The reheater pressure is 0.7 MPa. Compute the energy chargeable to the cycle (heat added to the boiler + heat added to the reheater) in kJ/kg. Use the unrounded value of z when needed.
Steam from a turbine with inlet pressure 30 bar and temperature 350°C is bled at 5 bar and 1 bar to supply a two-stage regenerator to heat up condensate leaving the turbine at 0.08 bar. In each stage, the condensate is heated up to the saturation temperature of the bled steam and the bled steam itself condenses completely. Remember: in a regenerator, there is no contact between the two streams, only heat exchange. of Consider the amount of steam bled at 5 bar and 1 bar, respectively, to be m¡ and m2 kg per steam supplied to the turbine. For the first stage, m¡ kg of bled steam at 5 bar heats each kg of condensate arriving from the second stage without any contact (that is, regeneration). Then, m¡ kg of condensate derived from the bled steam drains into the steam space of the second stage at 1 bar without heat loss. The combined drain from the second stage at 1 bar consists of mi+m2 kg per kg of steam supplied to the turbine. The combined drain is cooled to the condenser temperature…
An Ideal Rankine cycle operates on a boiler and condenser pressure of 2MPa and 20kPa respectively. Steam leaves the boiler at 500C. The cycle produces a Net Power of 10MW. Determine the a.) Thermal efficiency of the cycle(%), b.) steam rate of the turbine. (kg/kW-hr), and c.)heat rate of the cycle (kJ/kW-hr) PLS SHOW COMPLET SOLUTIONS
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
Given in Table are the pressure and temperature of the steam as it enters the turbine as well as the pressure in the condenser. The given engine operates on a simple ideal Rankine cycle, calculate the unknowns in Table. Show solution Rankine Pressure of Temperature Pressure at the Net work Heat Thermal entering the Efficiency (n) in % the steam entering the entering the condenser system (WN) boiler (Qin) turbine (Rx) turbine (t+) in MPa Engine of the steam done by the in KJ/kg in KJ/kg (Pe) in kPa in °C A 3 350 75
Note : similar problem is already solved on bartleby.You can take help from there. Assume ideal and the inlet of pump is saturated liquid.
Steam at 10 MPaa, 550 degrees celsius enters an ideal engine that has one stage of regenerative cycle; condenser pressure is 10kPaa and extraction of steam is at 1 MPa. Compute the following 5. Steam rate
M Gmail X E 2 98 (1) YouTube Maps * Question Completion Status: Boiler News POR A 3 Reheater 4 P4= Ps= Preheat Ho 2 Pump Condenser Q 11 The following data was given for a steam power plant operating on the ideal reheat Rankine cycle. 3-4: Inlet steam at 17.5 MPa and 600 °C 6-1: inlet steam at a pressure of 11.16 kPa at a wetness fraction of 0.1. At state 1, the specific volume is 0.00101 m³/kg Calculate the thermal efficiency of the cycle to 1 decimal place. Click Save and Submit to save and submit.. Click Save All Answers to save all answers. © w Translate High-P turbine He Low-P turbine acer A 19°C Sunny ^
Steam at 10 MPaa, 550 degrees celsius enters an ideal engine that has one stage of regenerative cycle; condenser pressure is 10kPaa and extraction of steam is at 1 MPa. Compute the following 8. Engine efficiency 9. Fraction of steam extracted from the turbine