Rankine cycle questions. Sketch the T-s diagram for this cycle.

Rankine cycle questions pdf), Text File (. Fig 3: Real Rankine Cycle T-s Diagram This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Simple Steam Power Cycle and Rankine Cycle”. Rankine cycle quiz for University students. Calculate the work generated from a Rankine cycle. In the T-S diagram of a Rankine cycle, the abscissa represents? Jul 18, 2024 · The Rankine cycle is the essential operating cycle for all power plants, and most solar power plants operate on this cycle. 5 MPa and the cycle has the highest and lowest temperatures of 450°C and 45°C respectively. Find other quizzes for Professional Development and more on Quizizz for free! Experiment 4 - Rankine Cycle Questions 1. A simple Rankine cycle produces 40 MW of power, 50 MW of process heat and rejects 60 MW of heat to the surroundings. It takes in low-pressure liquid from the condenser and compresses it to a higher pressure before it enters the boiler. Scribd is the world's largest social reading and publishing site. 6°C, x = 1 (point 3). most efficient rankine cycle Isentropic efficiency the ratio of actual power to isentropic power / the comparison between actual performance of a device and the performance under idealized circumstances for the same inlet and exit states. (b) the amount of heat rejected will decrease. Plot the following parameters as a function of time: aBoiler pressure bBoiler temperature cTurbine inlet and output temperature (on the same graph) dTurbine inlet and output pressure (on the same graph) eGenerator current (load) fGenerator voltage gTurbine RPM hFuel ow rate The Rankine cycle is named after the William John Macquorn Rankine professor at Glasgow University. In a Rankine cycle, high-pressure liquid water (1) enters a boiler where it is heated to saturation temperature (2), vaporized, and superheated (3). In this case, assume a simple cycle without reheat and condensing steam turbine running on saturated steam (dry steam). Solution: 1: 45oC , x = 0 => h1 = 188. The inlet to the adiabatic turbine is a saturated vapor. There are four processes in the Rankine cycle: Process 1 – 2: Isentropic compression. 42 , v1 = 0. 7%: D) 37. These are four processes in the Rankine cycle: Process 1 – 2: Isentropic compression. A real Rankine cycle or non-ideal cycle used in actual power plants do not undergo isentropic compression and expansion by pump and turbine respectively. Process 2 – 3: Isobaric heat addition 5 days ago · The Rankine cycle is a thermodynamic cycle that describes the operation of a steam engine or steam power plant, that is a closed loop in which water is converted into steam to drive a turbine, and turn produces mechanical work that can be used to generate power. Sketch the T-s diagram for this cycle. 7%: C) 27. 8 bar and superheats the steam to 500°C. unit mass for this cycle and the cycle thermal efficiency. Isentropic Compression (Pump): A pump is a device used in the Rankine cycle to increase the pressure of the working fluid. Sketch a Rankine cycle on a T- S diagram and sketch how the turbine path changes when the turbine is irreversible. Working fluid is pumped from low to high pressure. . Assuming ideal operation and processes, what is the thermal efficiency of this cycle? A) 7. A simple Rankine cycle operates the Boiler at 3 MPa with an outlet temperature of 350°C and the Rankine Cycle's Previous Year Questions with solutions of Thermodynamics from GATE ME subject wise and chapter wise with solutions This set of Power Plant Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Rankine Cycle and Carnot Cycle”. c) 70. a) Reversible b) Irreversible c) Reversible & Irreversible d) None of the mentioned View Answer Steam Turbine Questions and Answers – Carnot, Rankine and Reheat Cycle – 2 ; Thermodynamics Questions and Answers – Carnot Theorem, Carnot Cycle and Reversed Heat Engine ; Class 11 Physics MCQ – Thermodynamics – Carnot Engine ; Refrigeration Questions and Answers – Air Refrigerator Working on Reverse Carnot Cycle – 1 This set of Power Plant Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Carnotinization of Rankine Cycle”. A simple Rankine cycle operates the boiler at 3 MPa with an outlet temperature of 350°C and the condenser at 50 kPa. 7%: 3: A simple Rankine cycle operates its boiler at 3 MPa with an outlet temperature of 350°C and its 6. Process 2 – 3: Isobaric heat addition Steam Turbine Questions and Answers – Carnot, Rankine and Reheat Cycle – 2 ; Power Plant Questions and Answers – Supercritical Pressure Cycle and Layout of a Stem Power Plant ; Steam Turbines Questions and Answers – Carnot, Rankine and Reheat cycle – 1 ; IC Engine Questions and Answers – Stirling Cycle and Ericsson Cycle 6. (a) the turbine work output will decrease. All the best to all my viewers & Subscribers!!watch this 1st part of Find step-by-step Engineering solutions and the answer to the textbook question Consider a simple ideal Rankine cycle. 3 A utility runs a Rankine cycle with a water boiler at 3. (c) the cycle efficiency will decrease. Apply the first law (and, where appropriate, account for efficiencies using the second law) to the boiler, condenser, turbine, and liquid pump in a Rankine cycle. Find the plant efficiency and the efficiency of a Carnot cycle with the same temperatures. 7%: B) 17. The thermal efficiency of the cycle is Oct 21, 2024 · Real Rankine Cycle. Ans. 7. txt) or read online for free. Power Plant Questions and Answers – Binary Vapour Cycle – II ; Thermodynamics Questions and Answers – Brayton Cycle-1 ; Power Plant Questions and Answers – Rankine Cycle and Carnot Cycle ; Power Plant Questions and Answers – Energy Analysis of Combined Cycles and Choice of a Gas Turbine Rankine & Carnot Cycle - Power Plant Questions and Answers - Sanfoundry - Free download as PDF File (. The condenser operates at 0. 02 bar is proposed. A simple Rankine cycle operates the Boiler at 3 MPa with an outlet temperature of 350°C and the Dec 11, 2020 · Rankine cycle is a reversible cycle that has two constant pressure and two isentropic processes. Theory of Rankine Cycle. b) 60. These processes are irreversible compared to the ideal cycle, and there is an increase in entropy as shown in the T-s diagram below. Calculate the heat transfer or the work for each step of a Rankine cycle. Rankine Cycle Definition It is defined as a cycle, where heat energy is supplied to the system via the boiler where the fluid typically water is converted to high pressurized steam, and the steam is passed over the turbine and the work is generated. What is the utilization factor of this co generation cycle neglecting the pump work? a) 50. The working fluid is pumped from low to high pressure. The Rankine cycle is an idealized thermodynamic cycle of a constant pressure heat engine that converts part of heat into Feb 25, 2013 · This document contains 6 exercises related to calculating the thermal efficiency of steam power plants operating on different Rankine cycle configurations including: 1) Ideal Rankine cycle 2) Ideal reheat Rankine cycle 3) Reheat Rankine cycle with specified turbine inlet/exit conditions 4) Regenerative Rankine cycle with one open feedwater heater 5) Reheat-regenerative cycle with one open Let us assume the Rankine cycle, one of the most common thermodynamic cycles in thermal power plants. b. This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Simple Steam Power Cycle and Rankine Cycle”. The boiler operates at 19. We suggest that you write down the reasons for your answers. Also calculate the thermodynamic efficiency of the cycle. d) 80. A power cycle continuously converts ____ into ____ This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Actual Vapor Cycle Processes and Comparison of Rankine and Carnot Cycles”. 6 kPa Simulation: Rankine Cycle Try to answer these questions before determining the answer with the simulation . ii) To increase the cycle efficiency, an alternate Rankine cycle (termed a Carnot Rankine cycle) operating between the same pressures of 10 bar and 0. A power cycle continuously converts ____ into ____ 11. Dec 1, 2018 · currently I'm a research scholar at IIT Roorkee & helping students through these videos. The Rankine cycle was named after him and describes the performance of steam turbine systems, though the theoretical principle also applies to reciprocating engines such as steam locomotives. 00101 , Psat = 9. Ideal ‘Rankine Cycle’ is a _____ process. 10 bar and the turbine is adiabatic and reversible. In this case, the turbine operates at a steady state with inlet conditions of 6 MPa, t = 275. 1. Jan 22, 2025 · Rankine cycle: The Rankine cycle is an ideal cycle because that has two constant pressure and two isentropic processes and all processes are reversible. Rankine cycle is named after Scottish engineer William Rankine, who analyzed an ideal heat engine with a condenser in 1859. The superheated steam is fed to a turbine, where it expands and generates mechanical work. The Rankine cycle is an idealized thermodynamic cycle describing the process by which certain heat engines, such as steam turbines or reciprocating steam engines, allow mechanical work to be extracted from a fluid as it moves between a heat source and heat sink. If the condenser pressure is lowered while keeping the turbine inlet state the same.