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Effect of gas turbine intake air temperature regulating heat exchanger on combined cycle performance based on three-dimensional deformed tube

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Abstract

Aiming at the gas steam cycle system with partial load operation throughout the year, the influence of adding a gas turbine inlet temperature regulating heat exchanger on the energy efficiency of the combined cycle was analyzed based on the variation curve of the combined cycle partial load performance with inlet temperature of similar models provided in the literature. Taking the hot water temperature of the inlet temperature regulator designed for a certain gas steam cycle thermal power plant as the experimental testing conditions, and under the same inlet heater resistance limit conditions, the comprehensive performance of two types of gas–water heat exchangers using three-dimensional deformation tubes and composite steel aluminum fin tubes was tested and compared for analysis. Based on the performance characteristics and experimental calculation results of three-dimensional deformation tube heat exchangers, a new type of gas turbine inlet temperature regulator using three-dimensional deformation tubes was designed based on the local climate conditions and partial load operation characteristics of a thermal power plant. And the heating and cooling conditions of the gas turbine inlet temperature regulating device were discussed and analyzed for the typical operating conditions throughout the year. The conclusions obtained can provide reference for the selection of gas turbine inlet temperature regulators by power plant engineering technicians and the engineering application of this innovative gas turbine inlet temperature regulator.

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Acknowledgements

This work is supported by the National Key R&D Program of China (No.2022YFB4202001); Special Cooperation Program of Jilin Province and Chinese Academy of Sciences, (No. 2022SYHZ0027); Science and Technology Commissioner of Guangdong Province (No. GDKTP2021047200).

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TA and ZD contributed to the study conception and design. Material preparation, data collection and analysis were performed by FS, HC. The first draft of the manuscript was written by TA and LS. All authors commented on previous versions of the manuscript. Writing—review and editing, as well as supervision, was performed by LS. LS and ZD contributed to funding acquisition. All authors read and approved the final manuscript.

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Correspondence to Liu Shijie.

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Aimin, T., Shijie, L., Shiwan, F. et al. Effect of gas turbine intake air temperature regulating heat exchanger on combined cycle performance based on three-dimensional deformed tube. J Therm Anal Calorim 148, 10399–10414 (2023). https://doi.org/10.1007/s10973-023-12377-w

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