Analysis of coupling characteristics between solar energy and compressor extraction energy storage gas turbine CHP system

Hailiang Yang ,Cheng Yang ,Guangping Xie ,Hua Li ,Xiaoqian Ma

doi:10.24294/tse.v5i2.1534

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Analysis of coupling characteristics between solar energy and compressor extraction energy storage gas turbine CHP system

Hailiang Yang

Cheng Yang

Guangping Xie

Hua Li

Xiaoqian Ma

Thermal Science and Engineering 2022, 5(2), 9-19; https://doi.org/10.24294/tse.v5i2.1534

Submitted：06 Jun 2022

Accepted：02 Aug 2022

Published：07 Aug 2022

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Abstract

The regulation of compressor extraction and energy storage can improve the performance of gas turbine energy system. In order to make the gas turbine system match the external load more flexibly and efficiently, a gas turbine cogeneration system with solar energy coupling compressor outlet extraction and energy storage is proposed. By establishing the variable condition mathematical model of air turbine, waste heat boiler and solar collector, we use Thermoflex software to establish the variable condition model of gas turbine compressor outlet extraction, and analyze the variable condition of the coupling system to study the changes of thermal parameters of the system in the energy storage, energy release and operation cycle. Taking the hourly load of a hotel in South China as an example, this paper analyzes the case of the cogeneration system of solar energy coupling compressor outlet extraction and energy storage, and compares it with the benchmark cogeneration system. The results show that taking a typical day as a cycle, the primary energy utilization rate of the system designed in this paper is 3.2% higher than that of the traditional cogeneration system, and the efficiency is 2.4% higher.

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References

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