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国际清洁环境能源期刊

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ISSN 打印: 2150-3621

ISSN 在线: 2150-363X

SJR: 0.597 SNIP: 1.456 CiteScore™:: 3.7 H-Index: 18

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A SYSTEMATIC APPROACH IN POWER PLANT PERFORMANCE IMPROVEMENT THROUGH EXERGY ANALYSIS − A CASE STUDY OF TAMNAR, CHHATTISGARH, INDIA

卷 22, 册 6, 2021, pp. 1-33
DOI: 10.1615/InterJEnerCleanEnv.2021034956
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摘要

A component-based energy and exergy evaluation was performed on a 600-MW thermal power plant located at Tamnar, Chhattisgarh, India. The main objectives of the current study are first and second law assessment of the power plant's main components and it was observed that the boiler is the main source of energy and exergy destruction followed by the condenser, turbine, and other components at full load conditions. The exergy−energy analysis was utilized for obtaining the exact magnitude of exergy destruction and efficiency in each component separately but for analysis of either major or trivial effects of environment condition variations on plant components. In the current investigations, it is observed that the plant is losing 1025.734 MW of total energy (including all the components) and 1261.413 MW of exergy destruction takes place. A high-pressure heater-5 is found to be the most efficient component with an efficiency of 99.83%. The energy and exergy efficiencies of the boiler are 73.42 and 39.69%, respectively. In the case of turbines, a high-pressure turbine is found to be more efficient as compared to the intermediate pressure turbine and low-pressure turbine. The energy efficiency of low-pressure heater-1, low-pressure heater-2, and low-pressure heater-3 was found to be 99.8, 89.37, and 99.79%, respectively. From the exergy analysis, the exergy efficiency of low-pressure heater-1, low-pressure heater-2, and low-pressure heater-3 was found to be 11.70, 77.70, and 80.6%, respectively. The deaerator is 97.01% efficient and the high-pressure heater-5 and high-pressure heater-6 are observed to have a higher efficiency of 99.83 and 92.02%, respectively. The energy and exergy efficiencies of the condensate extraction pump are found to be 99.48 and 9.56%, respectively.

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对本文的引用
  1. Aljaafari Abdulelah, Fattah I. M. R., Jahirul M. I., Gu Yuantong, Mahlia T. M. I., Islam Md. Ariful, Islam Mohammad S., Biodiesel Emissions: A State-of-the-Art Review on Health and Environmental Impacts, Energies, 15, 18, 2022. Crossref

  2. Chernyavskyy Mykola, CO2 EMISSIONS CALCULATIONS FROM COAL-BURNING THERMAL POWER PLANTS IN UKRAINE SINCE 1990 , International Journal of Energy for a Clean Environment, 24, 1, 2023. Crossref

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