6. A binary vapor cycle operates under the following conditions: -Pressure in the mercury boiler =17.76 barPressure in the mercury condenser =0.28 barThe initial steam pressure to steam turbine =50 barSteam condenser pressure =0.072 barInitial condition of mercury and steam is dry and saturated. Calculate (a) mass of mercuryper kg of steam (b) Thermal efficiency of the cycle.Phmhg40.128SfmSg0.280.09914----| 17.76362.4010.49533----

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Answered: 6. A binary vapor cycle operates under…

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: The boiler of a power steam cycle operates at 6000 kPa and the condenser at 50 kPa. At the entrance to the turbine, the temperature is 500°C. The isentropic efficiency of the turbine is 90 percent, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by 6.3°C. The boiler is sized for a mass flow rate of 18 kg/s. You are asked to: a. Represent the cycle on P-v and T-s diagrams. b. Compute the rate at which heat is added in the boiler. c. Compute the power required to operate the pumps. d. Determine the net power produced by the cycle. e. Compute the thermal efficiency.
1. In a Rankine cycle, steam enters the turbine at 2.5 MPa and condenser of 50 kPa.What is the thermal efficiency of the cycle? 2. Steam enters the superheater of a boiler at a pressure of 25 bar and dryness of 0.98 and leaves at the same pressure at a temperature of 370OC. Calculate the heat energy supplied per kg of steam supplied in the superheater. Kindly answer question 1 and 2 and show solution. Please help me. Thank you
The mass flow rate of steam is 5 kg/s for a Rankine Cycle. For the actual cycle, the turbine efficiency is 86%, turbine brake efficiency is 80%, and generator efficiency=90%. The inlet conditions of the turbine are 3MPa and 400⁰C while the condensing pressure is 50kPa. a. Sketch the P-v, T-s and h-s diagram of the Cycle b. Calculate for the ideal and actual steam rates and heat rates of the Rankine Cycle and Rankine Engine, respectively. c. Determine the energy chargeable and combine thermal efficiencies for the Rankine Cycle and Rankine engine, respectively
A power station consists of a four-unit coal fired power station, having a combined capacity of 2,880 MW. The current efficiency of each unit is around 37.7%. You are asked to improve the thermal efficiency of each unit by lowering the condenser pressure. To simplify this task, assume that each unit operates on a simple ideal Rankine cycle. If the superheated vapour enters the turbine at 10 MPa and 500 ֯C and is cooled in the condenser at a lower pressure 10 kPa, determine the quality of the steam at the turbine exit and the thermal efficiency of the cycle for one unit.
Water is the working fluid in an ideal Rankine cycle. Superheated vapor enters the turbine at 8 MPa, 480oC. The condenser pressure is 8 kPa. The net power output of the cycle is 100 MW. Draw and label the schematic diagram and the pV and TS planes. Determine for the cycle (a) the rate of heat transfer to the working fluid passing through the steam generator, in kW. (b) the thermal efficiency. (c) the mass flow rate of condenser cooling water, in kg/h, if the cooling water enters the condenser at 15 degrees celcius and exits at 35 degrees celcius with negligible pressure change
PLEASE ANSWER ALL AND SHOW COMPLETE SOLUTION. 1. Steam is the working fluid in an ideal Rankine cycle. The saturated vapor enters the turbine at 8.0 MPa and saturated liquid exits the condenser at a pressure of 0.008 MPa. The net power output of the cycle is 100 MW. Determine for the cycle (a) the thermal efficiency, (b) the mass flow rate of the steam, in kg/h, (c) the rate of heat transfer, into the working fluid as it passes through the boiler, in MW, (d) the rate of heat transfer, from the condensing steam as it passes through the condenser, in MW, (e) the mass flow rate of the condenser cooling water, in kg/ h, if cooling water enters the condenser at 15 DEGREE CELCIUS and exits at 35 DEGREE CELCIUS.
A binary vapour cycle operates on mercury and steam. Standard mercury vapour at 4.5 bar is supplied to the mercury turbine, from which it exhausts at 0.04 bar. The mercury condenser generates saturated steam at 15 bar which is expanded in a steam turbine to0.04 bar.(i) Determine the overall efficiency of the cycle.(ii) If 48000 kg/h of steam flows through the steam turbine, what is the flow through themercury turbine ?(iii) Assuming that all processes are reversible, what is the useful work done in the binaryvapour cycle for the specified steam flow ?(iv) If the steam leaving the mercury
Q.3 A. Calculate the thermal efficiency of a Rankine cycle in which the steam is initially dry saturated at 2 Mpa and the condenser pressure 75 kN / m². Express this efficiency as a percentage of a Carnot cycle efficiency of the same limits of temperature. B. If the steam leaves the boiler at 350 ° C with the same pressure of the boiler and condenser given above. Explain why the Rankine efficiency in (A) is less than in (B), and why the ratio of efficiencies of the respective Rankine and Carnot is greater.
In an ideal reheat-rgenerative cycle, steam enters the turbine at 6 MPaa and 400 degrees Celsius. After expansion to 1.4 MPaa steam is withdrawn and reheated to 300 degrees Celsius . Extractions for regenerative heating occur at 0.15 MPaa and 1.4 MPaa and the condenser pressure is 0.1 MPaa. Use mass flowrate of 1 kg/s. Compute for the following 1. Fractions of steam extracted 2. Turbine Work
1. A reheat steam cycle has 13,580 kPa of throttle pressure at the turbine inlet and a 37.50308414 atm reheat pressure, the throttle and reheat temperature of the steam is 1302 R, condenser pressure is 4.3 kPa. Determine the difference between the simple Rankine cycle efficiency and the reheat Rankine cycle efficiency, in percent.
An ideal Rankine cycle operates between a steam boiler pressure of 18 MPa and a condenser temperature of 42 °C. The steam leaving the boiler is a saturated vapor. The net power generated by the cycle is 150 MW. What is the mass flow rate of steam? What is the cycle efficiency? Use the formula: n=Wnet/Qin.
Q/2 Water is the working fluid in an ideal Rankine cycle. The condenser pressure is 8 kPa, and saturated vapor enters the turbine at 18 MPa. The net power output of the cycle is 100 MW. Determine the mass flowrate of steam, in kg/h, the heat transfer rates for the working fluid passing through the boiler and condenser, each in kW, and the thermal efficiency.

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