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Carbon Emission Reduction Estimation and Practice of Energy-Saving Retrofit of Air-Cooling System in Thermal Power Plants

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  • Liqin Liu

    (Northeast Electric Power Design Institute Co., Ltd. of China Power Engineering Consulting Group, Jilin 130022, China)

Abstract

To address the critical challenge of balancing thermal power generation efficiency and low-carbon transition, this study develops a multi-dimensional hybrid carbon emission reduction estimation model (LCA-IB Method) that integrates Life Cycle Assessment (LCA) with an Improved Baseline Method. This model innovatively quantifies the carbon reduction contribution rates of individual retrofit technologies while accounting for embodied carbon in equipment and operational carbon emissions. Taking Suizhong Power Plant’s 2×800MW Russian-made thermal power units as a case study, the model was validated using 18 months of high-frequency (5-minute interval) operational data (1.2 million data points) and on-site continuous emissions monitoring system (CEMS) data. Key results show: (1) The retrofit, incorporating spray cooling, counterflow/parallel flow switching, and intelligent control technologies, achieved an annual carbon emission reduction of 192,300 tCO₂, with a 15.4% reduction in unit power generation carbon emissions (from 0.356 tCO₂/MWh to 0.302 tCO₂/MWh). The model’s prediction error was verified to be

Suggested Citation

  • Liqin Liu, 2025. "Carbon Emission Reduction Estimation and Practice of Energy-Saving Retrofit of Air-Cooling System in Thermal Power Plants," Journal of Progress in Engineering and Physical Science, Pioneer Academic Publishing Limited, vol. 4(5), pages 29-35, October.
    • Handle: RePEc:cvg:jpepsc:v:4:y:2025:i:5:p:29-35
    DOI: 10.56397/JPEPS.2025.10.05
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