Life cycle assessment of the solar thermal power plant integrated with air-cooled supercritical CO2 Brayton cycle

被引：37

作者：

Xiao, Tingyu ^{[1
]}

Liu, Chao ^{[1
]}

Wang, Xurong ^{[2
]}

Wang, Shukun ^{[1
]}

Xu, Xiaoxiao ^{[1
]}

Li, Qibin ^{[1
]}

Li, Xiaoxiao ^{[1
]}

机构：

[1] Chongqing Univ, Sch Energy & Power Engn, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400030, Peoples R China

[2] Henan Univ Urban Construct, Sch Energy & Bldg Environm Engn, Pingdingshan 467036, Peoples R China

来源：

RENEWABLE ENERGY | 2022年 / 182卷

基金：

中国国家自然科学基金;

关键词：

Concentrating solar power; Supercritical carbon dioxide brayton cycle; Different layouts; Life cycle assessment; Uncertainty analysis; CSP; OPTIMIZATION; GENERATION;

D O I：

10.1016/j.renene.2021.10.001

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Supercritical carbon dioxide (sCO(2)) Brayton cycle offers the potential of higher thermal efficiency and lower costs of electricity generation for concentrated solar power (CSP) applications. Besides its economic potential, the environmental sustainability needs to be examined. For this purpose, detailed life cycle assessment (LCA) of the solar driven sCO(2) power generation system is carried out. The pollutant emissions and primary energy consumptions of the CSP plant with two typical sCO(2) Brayton cycles including simple recuperative cycle and recompression cycle are analyzed and compared. Global warming potential (GWP), acidification potential (AP), respiratory effects potential (REP) are obtained. The life cycle greenhouse gas (GHG) emissions of parabolic trough (PT) plant with sCO(2) cycle and steam Rankine cycle are compared. Finally, uncertainty analysis is carried out to study the effect of environmental factors (solar irradiation and ambient temperature) and parameter design of the PT system (turbine inlet temperature, life span and thermal energy storage (TES) capacity) on the LCA results and ensure the reliable comparison. It is found that for the PT plant with sCO(2) power cycle, the auxiliary electricity consumption from the grid, TES and solar field manufacture account for 92% of the total environmental impact and 98% of the total energy consumption, while sCO(2) power cycle only accounts for a small part. The environmental performance of the recompression layout is better than that of the simple recuperative layout. For the CSP application, the GHG emissions of the sCO(2) cycle are 21%similar to 41% less than that of the steam Rankine cycle. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页码：119 / 133

页数：15

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