STEAM TURBINE POWER CYCLES. The vast majority of electrical generating plants are variations of vapour power plants in which water is the working fluid.

Slides:

Advertisements

Similar presentations

Rankine Cycle Figures from Cengel and Boles, Thermodynamics, An Engineering Approach, 6th ed., McGraw Hill, 2008.

Advertisements

EGR 334 Thermodynamics Chapter 4: Section 10-12

Refrigeration Cycles Chapter 11.

A simplified Flow Chart for Thermal Science

Reading: Cengel & Boles, Chapter 9

ENERGY CONVERSION ES 832a Eric Savory Lecture 12 – Large-scale plants Department of Mechanical and Material Engineering.

Example 1 - Superheat Rankine Cycle

1 Lec 24: Rankine cycle reheat, deviations, efficiency increases, viscosity, introduction to fluid flow.

Vapor and Combined Power Cycles

9 CHAPTER Vapor and Combined Power Cycles.

Power Generation OBJECTIVE To examine vapor power plants in which the working fluid is vaporized and condensed.

Department of Mechanical Engineering ME 322 – Mechanical Engineering Thermodynamics Lecture 25 Comparison to Carnot’s Heat Engine Effects of Boiling and.

Chapter 1 VAPOR AND COMBINED POWER CYCLES

ES 202 Fluid and Thermal Systems Lecture 23: Power Cycles (2/4/2003)

Vapor Power Cycles Thermodynamics Professor Lee Carkner Lecture 19.

GAS TURBINE POWER PLANTS

Lec 23: Brayton cycle regeneration, Rankine cycle

A Vapor Power Cycle Boiler T Turbine Compressor (pump) Heat exchanger

Thermal_Power_Plant_2 Prepared by: NMG

Power Generation Cycles Vapor Power Generation The Rankine Cycle

EGR 334 Thermodynamics Chapter 8: Sections 1-2

Chem. Eng. Thermodynamics (TKK-2137) 14/15 Semester 3 Instructor: Rama Oktavian Office Hr.: M.13-15, Tu , W ,

Thermodynamics II Chapter 1 VAPOR POWER CYCLES

Vapor and Combined Power Cycles (2)

Unit 4 Exercise – Gas Vapour and Combined Power Cycle

Energy and the Environment Spring 2014 Instructor: Xiaodong Chu ： Office Tel.: Mobile:

Lesson 8 SECOND LAW OF THERMODYNAMICS

Vapour Compression Refrigeration Systems

A Vapor Power Cycle Boiler T Turbine Compressor (pump) Heat exchanger

Chapter 10 VAPOR AND COMBINED POWER CYCLES

ENGR 2213 Thermodynamics F. C. Lai School of Aerospace and Mechanical Engineering University of Oklahoma.

1 ChemE 260 Improvements and Non-Ideal Behavior in the Rankine Cycle May 20, 2005 Dr. William Baratuci Senior Lecturer Chemical Engineering Department.

Lecture Objectives: Finish with absorption cooling Power generation Rankine cycles Connect power generation with heating and cooling –CHP –CCHP.

Chapter 10 Vapor and Combined Power Cycles Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 7th edition by Yunus.

Chapter 11 Refrigeration Cycles Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 8th edition by Yunus A. Çengel.

The Rankine Cycle: An Alternate Ideal Thermodynamic Model P M V Subbarao Professor Mechanical Engineering Department IIT Delhi A Feasible Mathematical.

ENGR 2213 Thermodynamics F. C. Lai School of Aerospace and Mechanical Engineering University of Oklahoma.

Branch : Electrical Group no. :. Roll no.Names 41)Shekh Azeem 42)Shiyal Jaydip 43)Shyara Khushbu 44)Mokariya Hiren 45)Sodha Bharatsingh 46)Solanki Piyush.

Rankine Cycle for Power Generation By P M V Subbarao Mechanical Engineering Department I I T Delhi An appropriate amalgamation of Theory and Practice.

ENGR 2213 Thermodynamics F. C. Lai School of Aerospace and Mechanical Engineering University of Oklahoma.

Superheat Rankine Cycle Example Turbine pump condenser Q out Q in W out W in boiler Consider the superheat Rankine power cycle as we analyzed before.

Experiment 6: Rankine Cycle Yvette Triay Reporter Group 3.

Chapter 11 Refrigeration Cycles Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 7th edition by Yunus A. Çengel.

Vapor ,Gas and Combined Power Cycles

Objectives Evaluate the performance of gas power cycles for which the working fluid remains a gas throughout the entire cycle. Analyze vapor power.

SNS COLLEGE OF ENGINEERING Coimbatore-107 Subject: Thermal Engineering

Thermodynamics Cycles.

Lecture Objectives: Answer question related to Project 1 assignment

Group-7(Ax) Naliyapara dilip

prepared by Laxmi institute tech. Mechanical eng. Department.

Chapter: 08 POWER CYCLES.

Simple Thermal Power Plant

TOPIC:- VAPOUR CYCLES CREATED BY:

Vapour Power Systems.

Power and Refrigeration Systems

Power Plant Technology Combined Cycle and Renewable Energy Power Systems (Assignment 1) by Mohamad Firdaus Basrawi, Dr. (Eng) Mechanical Engineering Faculty.

Power Plant Technology Steam and Gas Cycle Power Plant (Assignment 1)

UNIT IV- Vapour Power Cycles

Chapter 11 Refrigeration Cycles Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 5th edition by Yunus A. Çengel.

Power Plant Technology Steam and Gas Cycle Power Plant (Assignment 2)

Chapter 8 Production of Power from Heat.

9 CHAPTER Vapor and Combined Power Cycles.

Analysis of Constant Pressure Steam Generation

Real Rankine Cycle with Superheat

Chapter 2 Energy Transfer by Heat, Work & Mass

Chapter 11 Refrigeration Cycles Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 5th edition by Yunus A. Çengel.

Scientific Realization of Practicable Power Plant

Condenser in Power Plants

Regenerative Rankine Cycle

Presentation transcript:

STEAM TURBINE POWER CYCLES

The vast majority of electrical generating plants are variations of vapour power plants in which water is the working fluid. The basic components of a simplified fossil-fuel vapour power plant are shown schematically in the next slide.

Components of a simple vapour power plant

Rankine Cycle

Principal work and heat transfers of subsystem A

The thermal efficiency of a Rankine Cycle is expressed as The back work ratio for the Rankine power cycle is

Ideal Rankine Cycle

Temperature-entropy diagram of the ideal Rankine cycle

Work of the pump is given by or

Example 1 Steam is the working fluid in an ideal Rankine cycle. Saturated vapour enters the turbine at 8.0 MPa and saturated liquid exits the condenser at a pressure of MPa. The net power output of the cycle is 100 MW. Determine for the cycle (a) the thermal efficiency, (b) the back work ratio, (c) the mass flow rate of the steam, in kg/h, (d) the rate of heat transfer, into the working fluid as it passes through the boiler, in MW, (e) the rate of heat transfer, from the condensing steam as it passes through the condenser, in MW, (f) the mass flow rate of the condenser cooling water, in kg/h, if cooling water enters the condenser at 15 o C and exits at 35 o C.

Example 1

Effects of Boiler and Condenser Pressures on the Rankine Cycle

Effects of varying operating pressures on the ideal Rankine cycle. (a) Effect of boiler press. (b) Effect of condenser press.

Illustration used to compare the ideal Rankine cycle with the Carnot cycle

Principal Irreversibilities and Losses

Temperature-entropy diagrams showing the effects of turbine and pump irreversibilities

Example 2 Reconsider the vapour power cycle of Example 1, but include in the analysis that the turbine and the pump each have an isentropic efficiency of 85%. Determine for the modified cycle (a) the thermal efficiency, (b) the mass flow rate of steam, in kg/h, for a net power output of 100 MW, (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 o C and exits at 35 o C.

Example 2