Classification of Rankine Cycles

Slides:

Advertisements

Similar presentations

OFF DESIGN PERFORMANCE PREDICTION OF STEAM TURBINES

Advertisements

Development of Steam & Gas Turbines P M V Subbarao Professor Mechanical Engineering Department Basic Elements of Industrial Revolution……

Performance Analysis of Power Plant Condensers P M V Subbarao Professor Mechanical Engineering Department I I T Delhi A Device Which makes Power Plant.

Irreversibilities : Turbine to Condenser-II

Example 1 - Superheat Rankine Cycle

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

Yet Another Four Losses in Turbines - 2 P M V Subbarao Professor Mechanical Engineering Department A Set of Losses not Strictly due to Geometry of Blading….

Irreversible Expansion & Multi-staging : A Superior Match.

Primary Elements of Engineering Thermodynamics P M V Subbarao Professor Mechanical Engineering Department I I T Delhi The First step to Develop Engineering.

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

Irreversible Flow from Turbine Exit to Condenser

Power Generation Cycles Vapor Power Generation The Rankine Cycle

Effect of Reheating and Feed Water Heating on Steam Generation P M V Subbarao Professor Mechanical Engineering Department Good to Turbine and Cycle…..

Recent Developments in Reheat Rankine Cycle BY P M V Subbarao Professor Mechanical Engineering Department I I T Delhi New Efforts to Realize Isothermal.

Vapor and Combined Power Cycles (2)

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

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

Analysis of Rankine Cycle with FWH P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Engineering solution to Pure Thoughts..…..

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

Analysis of Rankine Cycle with FWHs P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Engineering solution to Pure Thoughts..…..

Gas dynamics of Real Combustion in Turbo Combustor P M V Subbarao Professor Mechanical Engineering Department Make Sure that design is Acceptable to Gas.

Study & Analysis of Carnot’s Model for Ideal Machine P M V Subbarao Professor Mechanical Engineering Department IIT Delhi A True Concept of Blue Printing…….

SSSF Analysis of Devices Used in Power Generation - 1 P M V Subbarao Professor Mechanical Engineering Department Sources of Work for Manufacturing Industry.

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.

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

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

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.

THERMODYNAMICS CYCLES RELATED TO POWER PLANTS

Realization of A Cycle P M V Subbarao Professor Mechanical Engineering Department I I T Delhi How to Create Temperature and Pressure…..?

P M V Subbarao Professor Mechanical Engineering Department

Compressible Flow Turbines

prepared by Laxmi institute tech. Mechanical eng. Department.

RANKINE CYCLE IMPROVISATIONS BY PRABHAKARAN.T AP/MECH

P M V Subbarao Professor Mechanical Engineering Department

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

The Multistage Impulse Turbines

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

UNIT IV- Vapour Power Cycles

Energy Sources and Conversion Processes

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

Multi-Staging in Impulse Turbines

Carnotization of Rankine Cycle thru Regeneration

P M V Subbarao Professor Mechanical Engineering Department

Impact of Cycle Design on Steam Generator

Carnotization of Rankine Cycle

Furnace Heat Transfer & Steam Generation

Thermo-Economic Analysis of Otto Cycle

Chapter 8 Production of Power from Heat.

Analysis of Constant Pressure Steam Generation

Analysis of Power Generation Cycles

SSSF Analysis of Devices Used in Power Generation - II

Developments in Rankine Cycle for Efficient Steam Generation

Design of Steam & Gas Turbines

Generation of Most Eligible Steam for Rankine Cycle

Turbines for Steam Power Plants

Scientific Realization of Practicable Power Plant

Generation of Eco-friendly Steam in Power Plants

Condenser in Power Plants

Generation of Most Eligible Steam for Rankine Cycle

First Law Analysis of Steam Power Plants

P M V Subbarao Professor Mechanical Engineering Department

Rankine Cycle for Scientific Design of Power generation System

Analysis of Reheat Rankine Cycle

Regenerative Rankine Cycle

Carnot Cycle for Scientific Design of Watt Engine

Optimal Location of Multiple FWHs in Rankine Cycle

Be Frank on Reconciliation or Breakup ……

Presentation transcript:

Classification of Rankine Cycles

Parametric Study of Rankine Cycle h P max

Specific Volume vs Temperature @15MPa @35MPa

Parametric Study of Rankine Cycle 23.5MPa 22MPa 18MPa 10MPa 6MPa 3MPa h 1MPa Tmax

Reheating : A Means to implement High Live Steam Pressure Supercritical 593/6210C 593/5930C 565/5930C 565/5650C 538/5650C Improvement in Efficiency, % 538/5380C

More Bottlenecks to Achieve Supercritical Steam Cycle 3sub 4sub T 2 1 s

Ill Effects of High Pressure Cycles x Pressure, MPa

Old Last Stage LP Blade

Modified Loss Region

Hurdles to Achieve High Pressure and Win-Win Solutions P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Right Placement of Energy into Working Substance…..

Progress in Steam Rankine Cycle Year 1907 1919 1938 1950 1958 1959 1966 1973 1975 MW 5 20 30 60 120 200 500 660 1300 p,MPa 1.3 1.4 4.1 6.2 10.3 16.2 15.9 24.1 Th oC 260 316 454 482 538 566 565 Tr oC -- FHW 2 3 4 6 7 8 Pc,kPa 13.5 5.1 4.5 3.4 3.7 4.4 5.4 h,% ~17 27.6 30.5 35.6 37.5 39.8 39.5 40

Why should steam condense during Adiabatic Expansion?????

Thermodynamic Characterization of Working Fluid

Philosophical Recognition of Working Fluid Organic Substances must be selected in accordance to the heat source temperature level (Tcr < Tin source)

Reheating of Steam to Enhance Quality at the Turbine Exit Single Turbine drum

Analysis of Reheat Cycle Consider reheat cycle as a combination of Rankine cycle and horn cycle. Cycle 1-2-3-4-5-6-1 = Cycle 1-2-3-4-4’-1 + Cycle 4’-4-5-6-4’. Therefore, 4’ 6

Analysis of the Reheat Cycle 4’ 6

Clues to Achieve Double Benefit Consider the ratio of Define Increment in efficiency

Selection of Reheat Pressure pmax= 15 MPa Tmax= 550 0C Tsat= 342.20C

Effect of Reheat Pressure on New Tm,in pmax= 15 MPa Tmax= 550 0C Tsat= 342.20C

Effect of Reheat Pressure Dh,% 1.0 0.2 0.4 0.6 0.8 ~0.3 prh/pmax

Optimal Selection of Reheat Point

Reheating : A Means to implement High Live Steam Pressure Supercritical 593/6210C 593/5930C 565/5930C 565/5650C 538/5650C Improvement in Efficiency, % 538/5380C