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首页> 外文期刊>Journal of Energy Resources Technology >Optimum Performance Improvements of the Combined Cycle Based on an Intercooler-Reheated Gas Turbine
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Optimum Performance Improvements of the Combined Cycle Based on an Intercooler-Reheated Gas Turbine

机译：基于中冷器-再热式燃气轮机的联合循环的最佳性能改进

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摘要

The performance enhancements and modeling of the gas turbine (GT), together with the combined cycle gas turbine (CCGT) power plant, are described in this study. The thermal analysis has proposed intercooler-reheated-GT (IHGT) configuration of the CCGT system, as well as the development of a simulation code and integrated model for exploiting the CCGT power plants performance, using the Matlab code. The validation of a heavy-duty CCGT power plants performance is done through real power plants, namely, MARAFIQ CCGT plants in Saudi Arabia with satisfactory results. The results from this simulation show that the higher thermal efficiency of 56% MW, while high power output of 1640 MW, occurred in IHGT combined cycle plants (IHGTCC), having an optimal turbine inlet temperature about 1900K. Furthermore, the CCGT system proposed in the study has improved power output by 94%. The results of optimization show that the IHGTCC has optimum power of 1860 MW and thermal efficiency of 59%. Therefore, the ambient temperatures and operation conditions of the CCGT strongly affect their performance. The optimum level of power and efficiency is seen at high turbine inlet temperatures and isentropic turbine efficiency. Thus, it can be understood that the models developed in this study are useful tools for estimating the CCGT power plant's performance.
机译：这项研究描述了燃气轮机（GT）以及联合循环燃气轮机（CCGT）电厂的性能增强和建模。热分析提出了CCGT系统的中冷器-再热GT（IHGT）配置，以及使用Matlab代码开发了开发CCGT电厂性能的仿真代码和集成模型。重型CCGT发电厂的性能验证是通过实际发电厂（即沙特阿拉伯的MARAFIQ CCGT发电厂）完成的，结果令人满意。该模拟的结果表明，在IHGT联合循环电厂（IHGTCC）中发生了56％MW的更高热效率，而高功率输出为1640 MW，其最佳涡轮入口温度约为1900K。此外，研究中提出的CCGT系统将功率输出提高了94％。优化结果表明，IHGTCC的最佳功率为1860 MW，热效率为59％。因此，CCGT的环境温度和操作条件会严重影响其性能。在较高的涡轮进口温度和等熵涡轮效率下，可以看到最佳的功率和效率水平。因此，可以理解的是，本研究中开发的模型是估算CCGT电厂性能的有用工具。

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