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Assessment of improvement in the energy and exergy efficiency of the gas heat plant after the exhaust gas cooled down below the dew point and the use of recovered heat

Author

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  • Ostrowski, Piotr
  • Szelejewski, Filip
  • Zymelka, Piotr

Abstract

The tendency to lower the temperature of boiler flue gas below the dew point temperature has increased and usually the energy efficiency is calculated within the boiler balance boundary. Because the recovered heat is commonly used outside the balance boundary the calculations of efficiency in the extended balance boundary are presented for boiler house. This paper presents a method of assessing the energy and exergy efficiency of a steam boiler house, in which the modernization that was carried out consisted of cooling the flue gas below the dew point and absorbing the recovered thermal power.

Suggested Citation

  • Ostrowski, Piotr & Szelejewski, Filip & Zymelka, Piotr, 2020. "Assessment of improvement in the energy and exergy efficiency of the gas heat plant after the exhaust gas cooled down below the dew point and the use of recovered heat," Energy, Elsevier, vol. 190(C).
    • Handle: RePEc:eee:energy:v:190:y:2020:i:c:s0360544219318742
    DOI: 10.1016/j.energy.2019.116179
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    Cited by:

    1. Mu, Lianbo & Wang, Suilin & Lu, Junhui & Liu, Guichang & Zhao, Liqiu & Lan, Yuncheng, 2023. "Effect of flue gas condensing waste heat recovery and its pressure drop on energy saving and carbon reduction for refinery heating furnace," Energy, Elsevier, vol. 279(C).
    2. Wang, Yanhong & Zou, Zhihong & Lu, Ke & Li, Qi & Hu, Pengfei & Wang, Di, 2024. "Modeling for on-line monitoring of carbon burnout coefficient in boiler under partial load," Energy, Elsevier, vol. 288(C).

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