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Energy‐exergy performance assessment with optimization guidance for the components of the 396‐MW combined‐cycle power plant
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2020-06-17 , DOI: 10.1002/ese3.764 Mohammadreza Babaei Jamnani 1 , Amin Kardgar 1
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2020-06-17 , DOI: 10.1002/ese3.764 Mohammadreza Babaei Jamnani 1 , Amin Kardgar 1
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In this study, energy‐exergy analysis is performed for the gas‐fired combined‐cycle power plant which will be constructed in Kuantan and Kapar in the Malay Peninsula in 2020. The main objectives of this current study are first and second law evaluation of the powerplant's main components consisting of the gas turbine unit, condenser, heat recovery steam generator, and triple‐pressure steam turbines. By energy‐exergy analysis, we can not only evaluate the exact magnitude of exergy destruction and efficiency in each component separately but analyze either major or trivial effects of environment condition variations on plant components. Performance effects are also pinpointed when the pressure ratio, reference temperature, HPT and condenser pressure, reheating and stack temperature change. In the current investigation, more than 808 MW of exergy destruction to the environment mainly occurs in the gas turbine cycle with around 83.79% of total exergy destruction, followed by HRSG (11.3%), steam turbines (roughly 2.58%), and condenser (2.54%). Additionally, exhaust gas fractions from the gas turbine across the combustor are calculated as well wherein the average molar fraction of nitrogen, oxygen, carbon dioxide, and water vapor is calculated to be 76.42%, 17.57%, 1.37%, and 4.64%, respectively. In conclusion, several constructive possibilities for CCPP’s performance development based on the obtained results are introduced. With regard to the construction of this project in 2020, energy‐exergy assessment, as well as optimization guidance, can be worthwhile for better modifying some operating conditions and taking advantage of the trivial destruction rate simultaneously.
中文翻译：
针对396兆瓦联合循环发电厂的组件进行能效优化评估指导
在这项研究中，对将在2020年在马来半岛的关丹和卡帕尔兴建的燃气联合循环发电厂进行了能量-能值分析。本研究的主要目标是对联合循环发电的第一定律和第二定律进行评估。电厂的主要组件包括燃气轮机，冷凝器，余热蒸汽发生器和三压力蒸汽轮机。通过能量-能值分析，我们不仅可以分别评估每个组件的能值破坏和效率的确切大小，还可以分析环境条件变化对植物组件的主要或微不足道的影响。当压力比，参考温度，HPT和冷凝器压力，再热和烟囱温度变化时，也会明确性能影响。在目前的调查中 超过808 MW的火用环境破坏主要发生在燃气轮机循环中，约占总火用破坏的83.79％，其次是HRSG（11.3％），蒸汽轮机（约2.58％）和冷凝器（2.54％）。另外，还计算了穿过燃烧器的燃气轮机的废气分数，其中，氮气，氧气，二氧化碳和水蒸气的平均摩尔分数分别计算为76.42％，17.57％，1.37％和4.64％。 。综上所述，根据所得结果，介绍了CCPP绩效发展的几种建设性可能性。关于该项目在2020年的建设，能效评估以及优化指导，
更新日期：2020-06-17
中文翻译：
针对396兆瓦联合循环发电厂的组件进行能效优化评估指导
在这项研究中，对将在2020年在马来半岛的关丹和卡帕尔兴建的燃气联合循环发电厂进行了能量-能值分析。本研究的主要目标是对联合循环发电的第一定律和第二定律进行评估。电厂的主要组件包括燃气轮机，冷凝器，余热蒸汽发生器和三压力蒸汽轮机。通过能量-能值分析，我们不仅可以分别评估每个组件的能值破坏和效率的确切大小，还可以分析环境条件变化对植物组件的主要或微不足道的影响。当压力比，参考温度，HPT和冷凝器压力，再热和烟囱温度变化时，也会明确性能影响。在目前的调查中 超过808 MW的火用环境破坏主要发生在燃气轮机循环中，约占总火用破坏的83.79％，其次是HRSG（11.3％），蒸汽轮机（约2.58％）和冷凝器（2.54％）。另外，还计算了穿过燃烧器的燃气轮机的废气分数，其中，氮气，氧气，二氧化碳和水蒸气的平均摩尔分数分别计算为76.42％，17.57％，1.37％和4.64％。 。综上所述，根据所得结果，介绍了CCPP绩效发展的几种建设性可能性。关于该项目在2020年的建设，能效评估以及优化指导，
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