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Design methodology of heat recovery steam generator in electric utility for waste heat recovery

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  • Awais Ahmed
  • Khaled Khodary Esmaeil
  • Mohammad A Irfan
  • Fahad A Al-Mufadi

Abstract

Heat recovery steam generators (HRSGs) are important components for industrial waste heat recovery, and any changes in their design directly affect the performance of the steam cycle, and thus the performance of the combined cycle power plant. The present research is focused on the design of a HRSG, including a dual-pressure steam generator cycle that is intended for use in a typical gas turbine unit having a power output of 60 MW. The results show that the maximum heat transfer occurs in the evaporator section for high-pressure levels, and in the economizer section for low-pressure levels. The optimum design pressure for the high-pressure level of the steam generator was found to be 100 bar, while that for the low-pressure level was found to be 10 bar. An exergy analysis was performed for the different processes and components of the steam cycle, including the HRSG. Calculations show that the overall exergy loss is about 35%, out of which 16% is lost in flue gasses and 10% is lost in heat exchanger, and the remainder was converted into 35 MW of useful work.

Suggested Citation

  • Awais Ahmed & Khaled Khodary Esmaeil & Mohammad A Irfan & Fahad A Al-Mufadi, 2018. "Design methodology of heat recovery steam generator in electric utility for waste heat recovery," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 13(4), pages 369-379.
    • Handle: RePEc:oup:ijlctc:v:13:y:2018:i:4:p:369-379.
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    File URL: http://hdl.handle.net/10.1093/ijlct/cty045
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    References listed on IDEAS

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    1. Dincer, I. & Hussain, M. M. & Al-Zaharnah, I., 2004. "Energy and exergy use in public and private sector of Saudi Arabia," Energy Policy, Elsevier, vol. 32(14), pages 1615-1624, September.
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    1. Wang, Yanhong & Cao, Lihua & Li, Xingcan & Wang, Jiaxing & Hu, Pengfei & Li, Bo & Li, Yong, 2020. "A novel thermodynamic method and insight of heat transfer characteristics on economizer for supercritical thermal power plant," Energy, Elsevier, vol. 191(C).
    2. Kwon, Hyun Min & Moon, Seong Won & Kim, Tong Seop & Kang, Do Won, 2020. "Performance enhancement of the gas turbine combined cycle by simultaneous reheating, recuperation, and coolant inter-cooling," Energy, Elsevier, vol. 207(C).
    3. Vítor Balanuta & Patrícia Baptista & Fernando Carreira & Gonçalo O. Duarte & Cláudia S.S.L. Casaca, 2024. "Assessment of Influential Operational Parameters in the Mitigation of CO 2 Emissions in a Power Plant: Case Study in Portugal," Clean Technol., MDPI, vol. 6(3), pages 1-12, September.
    4. Zhanar M. Orynkanova & Diana I. Stepanova, 2020. "Evaluation of the Economic Efficiency of Heat Recovery from Exhaust Gas of Diesel Power Plants in Kazakhstan," International Journal of Energy Economics and Policy, Econjournals, vol. 10(4), pages 399-404.

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