Carbon footprint analysis of two different types of hydropower schemes: comparing earth-rockfill dams and concrete gravity dams using hybrid life cycle assessment

被引:42
作者
Zhang, Sherong [1 ]
Pang, Bohui [1 ]
Zhang, Zongliang [2 ,3 ,4 ]
机构
[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
[2] HYDROCHINA Kunming Engn Corp, Kunming 650051, Peoples R China
[3] Ctr State Energy Hydropower Technol, Ctr Res & Dev, High Earth Rockfill Dam Branch, Kunming 650051, Peoples R China
[4] Technol Res Ctr Hydraul & Hydropower Earth Rockfi, Kunming 650051, Peoples R China
基金
中国国家自然科学基金;
关键词
Hydropower scheme; Carbon footprint; Earth-rockfill dam; Concrete gravity dam; Hybrid life cycle assessment; ENERGY USE; INVENTORY; EMISSIONS; SYSTEM;
D O I
10.1016/j.jclepro.2014.06.053
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Different types of hydropower schemes utilize different construction methods and have different carbon footprints. However, differences in carbon footprints between different schemes have been largely ignored when comparing environmental impacts for decision making. Thus, this paper aims to study and compare the carbon footprints of two types of Nuozhadu hydropower schemes with the same scale: an earth-core rockfill dam (ECRD) and a concrete gravity dam (CGD). The hybrid life cycle assessment (LCA) method combines the completeness of economic input-output LCA (EIO-LCA) and the specificity of process-based LCA (PA-LCA). It was applied to quantify the carbon footprint over the whole life cycle of the hydropower system. The evaluation of the carbon footprint considered the emissions from material production, transportation, construction, and the operation and maintenance phases for a period of 44 years. All relevant materials and energy consumption were included. It was found that the ECRD reduced CO2 emissions by approximately 24.7% compared to the CGD. With respect to each stage of the life cycle, the ECRD decreased CO2 emissions by 46.1% for material production, 16.5% for transportation and 9.0% for operation and maintenance but increased emissions by 6.6% for construction due to the heavy workload. Operational maintenance was the greatest contributor to CO2 emissions, followed by the production, construction and transportation stages. These results indicate that ECRDs are more environmentally responsible throughout its life cycle. This knowledge could help decision makers in the design phase looking to choose the appropriate type of hydropower system. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:854 / 862
页数:9
相关论文
共 29 条
[1]  
[Anonymous], 2006, INT STANDARD ISO 140, V2nd
[2]  
[Anonymous], 2050 PAS BSI
[3]  
Bank W, 2013, 2013 WORLD DEV IND
[4]   Life cycle inventory for electric energy system in Brazil [J].
Coltro, L ;
Garcia, EEC ;
Queiroz, GD .
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT, 2003, 8 (05) :290-296
[5]   Quantifying the carbon footprint of religious tourism: the case of Hajj [J].
El Hanandeh, Ali .
JOURNAL OF CLEANER PRODUCTION, 2013, 52 :53-60
[6]   Evaluation of life-cycle air emission factors of freight transportation [J].
Facanha, Cristiano ;
Horvath, Arpad .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2007, 41 (20) :7138-7144
[7]   Recent developments in Life Cycle Assessment [J].
Finnveden, Goran ;
Hauschild, Michael Z. ;
Ekvall, Tomas ;
Guinee, Jeroen ;
Heijungs, Reinout ;
Hellweg, Stefanie ;
Koehler, Annette ;
Pennington, David ;
Suh, Sangwon .
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2009, 91 (01) :1-21
[8]  
International Organization for Standardization, 2006, INT J LIFE CYCLE ASS
[9]   Carbon footprint of canned mussels from a business-to-consumer approach. A starting point for mussel processors and policy makers [J].
Iribarren, Diego ;
Hospido, Almudena ;
Teresa Moreira, Maria ;
Feijoo, Gumersindo .
ENVIRONMENTAL SCIENCE & POLICY, 2010, 13 (06) :509-521
[10]   Life cycle inventory information of the United States electricity system [J].
Kim, S ;
Dale, BE .
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT, 2005, 10 (04) :294-304