Alternatives to Improve Performance and Operation of a Hybrid Solar Thermal Power Plant Using Hybrid Closed Brayton Cycle

被引：2

作者：

Moreno-Gamboa, Faustino ^{[1
]}

Escudero-Atehortua, Ana ^{[2
]}

Nieto-Londono, Cesar ^{[2
]}

机构：

[1] Univ Francisco Paula Santander, Engn Sch, Grp Invest FLUTER, Cucuta 540004, Colombia

[2] Univ Pontificia Bolivariana, Engn Sch, Medellin 050031, Colombia

来源：

SUSTAINABILITY | 2022年 / 14卷 / 15期

关键词：

Brayton cycle; concentrated solar power; hybrid solar thermal power plant hybrid; exergy analysis; working fluid selection; FIRED GAS-TURBINE; SUPERCRITICAL CO2 CYCLE; HEAT-EXCHANGER; GENERATION; EXERGY; PREDICTION; EFFICIENCY; OPTIMIZATION; TECHNOLOGY; RADIATION;

D O I：

10.3390/su14159479

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Hybrid solar thermal power plants using the Brayton cycle are currently of great interest as they have proven to be technically feasible. This study evaluates mechanisms to reduce fuel consumption and increase the power generated, improving plant efficiency. An energy and exergy model for the hybrid solar plant is developed using an estimation model for the solar resource to determine the plant operation under specific environmental conditions. The effect of using different working fluids in the Brayton cycle, such as air, and helium in transcritical conditions and carbon dioxide in subcritical and supercritical conditions, is evaluated. Additionally, the plant's exergy destruction and exergy efficiency are evaluated. In those, it can be highlighted that the helium cycle in the same operating conditions compared to other working fluids can increase the power by 160%, increasing fuel consumption by more than 390%.

引用

页数：24

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