Table of Contents

Cover image

Title page

Copyright

List of contributors

1. Introduction

Abstract

1.1 Gas turbine–based power plants

1.2 Heat recovery steam generator (HRSG)

1.3 Focus and structure of book

References

2. The combined cycle and variations that use HRSGs

Abstract

2.1 Introduction

2.2 Combining the Brayton and Rankine cycles

2.3 The central role of HRSGs in combined cycle design

2.4 Power cycle variations that use HRSGs

2.5 Conclusion

Reference

3. Fundamentals

Abstract

Nomenclature

Subscripts

3.1 Thermal design

3.2 Mechanical design

References

4. Vertical tube natural circulation evaporators

Abstract

4.1 Introduction

4.2 Evaporator design fundamentals

4.3 Steam drum design

4.4 Steam drum operation

4.5 Specialty steam drums

References

5. Economizers and feedwater heaters

Abstract

5.1 Custom design

5.2 Standard design

5.3 Flow distribution

5.4 Mechanical details

5.5 Feedwater heaters

Reference

6. Superheaters and reheaters

Abstract

6.1 Introduction

6.2 General description of superheaters

6.3 Design types and considerations

6.4 Outlet temperature control

6.5 Base load vs fast startup and/or high cycling

6.6 Drainability and automation (coils, desuperheater, etc.)

6.7 Flow distribution

6.8 Materials

6.9 Conclusions

7. Duct burners

Abstract

7.1 Introduction

7.2 Applications

7.3 Burner technology

7.4 Fuels

7.5 Combustion air and turbine exhaust gas

7.6 Physical modeling

7.7 Emissions

7.8 Maintenance

7.9 Design guidelines and codes

References

8. Selective catalytic reduction for reduced NOx emissions

Abstract

8.1 History of SCR

8.2 Regulatory drivers

8.3 Catalyst materials and construction

8.4 Impact on HRSG design and performance

8.5 Drivers and advances in the SCR field

8.6 Future outlook for SCR

References

9. Carbon monoxide oxidizers

Abstract

9.1 Introduction

9.2 Oxidation catalyst fundamentals

9.3 The oxidation catalyst

9.4 The design

9.5 Operation and maintenance

9.6 Future trends

Supplemental reading

10. Mechanical design

Abstract

10.1 Introduction

10.2 Code of design: mechanical

10.3 Code of design: structural

10.4 Owner’s specifications and regulatory Body/organizational review

10.5 Pressure parts

10.6 Mechanical design

10.7 Pressure parts design flexibility

10.8 Structural components

10.9 Structural solutions

10.10 Piping and support solutions

10.11 Field erection and constructability

10.12 Fabrication

10.13 Conclusion

References

11. Fast-start and transient operation

Abstract

11.1 Introduction

11.2 Components most affected

11.3 Effect of pressure

11.4 Change in temperature

11.5 Materials

11.6 Construction details

11.7 Corrosion

11.8 Creep

11.9 HRSG operation

11.10 Life assessments

11.11 National Fire Protection Association purge credit

11.12 Miscellaneous cycling considerations

References

12. Miscellaneous ancillary equipment

Abstract

12.1 Introduction

12.2 Exhaust gas path components

12.3 Water/steam side components

12.4 Equipment access

12.5 Conclusion

13. HRSG construction

Abstract

13.1 Introduction

13.2 Levels of modularization

13.3 Coil bundle modularization

13.4 Structural frame

13.5 Inlet ducts

13.6 Exhaust stacks

13.7 Piping systems

13.8 Platforms and secondary structures

13.9 Construction considerations for valves and instrumentation

13.10 Auxiliary systems

13.11 Future trends

14. Operation and controls

Abstract

14.1 Introduction

14.2 Operation

14.3 Controls

References

15. Developing the optimum cycle chemistry provides the key to reliability for combined cycle/HRSG plants

Abstract

Nomenclature

15.1 Introduction

15.2 Optimum cycle chemistry treatments

15.3 Major cycle chemistry-influenced damage/failure in combined cycle/HRSG plants

15.4 Developing an understanding of cycle chemistry-influenced failure/damage in fossil and combined cycle/HRSG plants using repeat cycle chemistry situations

15.5 Case studies

15.6 Bringing everything together to develop the optimum cycle chemistry for combined cycle/HRSG plants

15.7 Summary and concluding remarks

15.8 Bibliography and references

References

16. HRSG inspection, maintenance and repair

Abstract

16.1 Introduction

16.2 Inspection and maintenance

16.3 Repair

References

17. Other/unique HRSGs

Abstract

17.1 Vertical gas flow HRSGS

17.2 Once-through HRSG

17.3 Enhanced oil recovery HRSGs

17.4 Very high fired HRSGs

References

Index

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