摘要
以湖北省荆州市的"猪-沼-鱼"系统为对象,采用生命周期评价法(Life Cycle Assessment,LCA)分别对系统中的猪舍、沼气池和鱼塘建立从建造,运行到维护的系统模型,计算该系统生命周期过程中的不可再生能源消耗量和温室气体排放量。结果表明,"猪-沼-鱼"系统的不可再生能源消耗强度为0.60 MJ/MJ,温室气体当量排放强度为0.05 kg/MJ。与日本某集中型沼气系统比较可知,"猪-沼-鱼"系统具有较高的可再生性和很好的温室气体减排效益,是一条科学环保的能源生态链。
The energy saving and emission reduction of the present rural biogas system were studied. Life Cycle Assessment （LCA） method was used to analyze a ＂pig-biogas-fish＂ system in Jingzhou City, Hubei Province. The non- renewable energy cost and greenhouse gas emission of the system, including the pigsty, the biogas digester and the fishpond were taken into account. The results indicate that the non-renewable energy consumption intensity of ＂pig- biogas-fish＂ system is 0.60 MJ/MJ, and the equivalent CO2 emission intensity is 0.05 kg/MJ. Compared with a centralized biogas plant in Japan, the ＂pig-biogas-fish＂ system show high renewability and GHG reduction benefit, which indicates a scientific and environmentally friendly chain of combining energy and ecology.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2014年第8期1550-1555,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51306067
51376076)
湖北省自然科学基金(2013CFB179)
关键词
可再生性
温室气体
能耗
生命周期分析
“猪
沼
鱼”系统
renewability
greenhouse gas
non- renewable energy cost
Life Cycle Assessment
＂pig- biogas- fish＂system
