北方农村复合颗粒燃料取暖全生命周期评价研究  

WHOLE-LIFE CYCLE ASSESSMENT OF COMPOSITE PELLET FUEL FOR HEATING IN NORTHERN RURAL AREAS

作　　者：江靖宇 刘予涵 庞雨桐 陈禹昕 郭飞宏 姜小祥[1] Jiang Jingyu;Liu Yuhan;Pang Yutong;Chen Yuxin;Guo Feihong;Jiang Xiaoxiang(School of Energy and Mechanical Engineering,Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control,Nanjing Normal University,Nanjing 210023,China)

机构地区：[1]南京师范大学能源与机械工程学院,江苏省物质循环与污染控制重点实验室,南京210023

出　　处：《太阳能学报》2022年第12期432-438,共7页Acta Energiae Solaris Sinica

基　　金：江苏省高等学校自然科学基金面上项目(20KJB610007);江苏省自然科学基金青年基金(BK20200736)。

摘　　要：以秸秆和煤为原料制备复合颗粒燃料,利用全生命周期评价方法,研究颗粒燃烧取暖全生命周期过程中的能源消耗和环境影响。结果表明:颗粒燃料取暖全生命周期过程中能量投入为908 MJ/t,燃烧释放热量15490 MJ/t,能量产出投入比为17.1,能源转化效率较高。颗粒燃料的能量投入主要来自玉米种植,种植过程中的氮肥使用消耗较多能量。对气候变化(GWP)和酸化(AP)贡献较大的清单数据为颗粒燃料的燃烧,其中燃烧污染物排放的直接贡献最大,贡献率分别为53.22%和46.08%;对水资源消耗(WU)贡献较大的清单数据为颗粒燃料的压制,贡献率为71.56%;对富营养化潜值(EP)贡献较大的清单数据为颗粒燃料燃烧后的废渣排放,贡献率为43.40%。In this paper,straw and coal are used as raw materials to produce composite fuel pellets,and the energy consumption and environmental impact of fuel pellets for combustion heating are studied by using the whole-life cycle assessment method.The results show that the total energy input of fuel pellets is 908 MJ/t,the calorific value released by combustion is 15490 MJ/t,and the energy ratio of output to input is 17.1,indicating high energy conversion efficiency.The energy input of fuel pellets is mainly used for corn planting,in which the use of nitrogen fertilizer in the process of planting consumes more energy.The most significant contribution to climate change(GWP)and acidification(AP)is the combustion of fuel pellets,in which the direct contribution of combustion pollutants is the largest,accounting for 53.22% and 46.08% respectively;the most significant contribution to the water resources consumption(WU)is the production of fuel pellets,accounting for 71.56%;the most significant contribution to eutrophication potential(EP)is the discharge of waste residue from pellets combustion,with a contribution rate of 43.40%.

关 键 词：生物质能 秸秆 能源消耗 环境影响 颗粒燃料 全生命周期评价 

分 类 号：S216[农业科学—农业机械化工程]