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考虑处置阶段的光伏组件生命周期评价

赵若楠 董莉 乔琦 刘景洋 白璐 张玥 谢明辉

赵若楠, 董莉, 乔琦, 刘景洋, 白璐, 张玥, 谢明辉. 考虑处置阶段的光伏组件生命周期评价[J]. 环境工程技术学报, 2021, 11(4): 807-813. doi: 10.12153/j.issn.1674-991X.20200258
引用本文: 赵若楠, 董莉, 乔琦, 刘景洋, 白璐, 张玥, 谢明辉. 考虑处置阶段的光伏组件生命周期评价[J]. 环境工程技术学报, 2021, 11(4): 807-813. doi: 10.12153/j.issn.1674-991X.20200258
ZHAO Ruonan, DONG Li, QIAO Qi, LIU Jingyang, BAI Lu, ZHANG Yue, XIE Minghui. Life cycle assessment of photovoltaic module considering disposal stage[J]. Journal of Environmental Engineering Technology, 2021, 11(4): 807-813. doi: 10.12153/j.issn.1674-991X.20200258
Citation: ZHAO Ruonan, DONG Li, QIAO Qi, LIU Jingyang, BAI Lu, ZHANG Yue, XIE Minghui. Life cycle assessment of photovoltaic module considering disposal stage[J]. Journal of Environmental Engineering Technology, 2021, 11(4): 807-813. doi: 10.12153/j.issn.1674-991X.20200258

考虑处置阶段的光伏组件生命周期评价

doi: 10.12153/j.issn.1674-991X.20200258
详细信息
    作者简介:

    赵若楠(1989—),女,工程师,主要从事环境经济政策、环境管理研究, zhaorn@craes.org.cn

    通讯作者:

    谢明辉 E-mail: xiemh@craes.org.cn

  • 中图分类号: X820.3

Life cycle assessment of photovoltaic module considering disposal stage

More Information
    Corresponding author: XIE Minghui E-mail: xiemh@craes.org.cn
  • 摘要: 为判识光伏组件全生命周期环境影响,采用生命周期评价法对光伏组件的生产、使用、处置等阶段环境影响进行分析。通过现场和问卷调研的方式获得了光伏组件生产、使用阶段的能源物质消耗和污染物排放数据,通过回收工艺研发与应用获得了光伏组件处置阶段的能源物质投入、产出和污染物排放数据。依据不同的处置技术设计了填埋情景、拆解情景、热解情景,从而分别计算生产、使用、处置等阶段环境影响潜值并进行对比分析。结果表明:1)每m2光伏组件生产阶段和使用阶段环境影响潜值分别为13.98、1.50 Pt,处置阶段3种情景的环境影响潜值分别为0.04、-0.62、-3.59 Pt,因此3种情景下光伏组件全生命周期环境影响潜值分别为15.52、14.86、11.89 Pt。2)从环境影响类别来看,主要集中在呼吸系统损害、致癌和气候变化3个方面,从影响因素来看,电耗是主要因素,3种情景下占全生命周期环境影响的64.81%、67.70%、84.61%。3)从光伏发电的度电环境影响潜值水平来看,3种情景下光伏发电单位发电量环境影响潜值分别为3.34×10-3、3.20×10-3、2.56×10-3 Pt/(kW·h),占当前电力结构下单位发电量环境影响潜值〔70.1×10-3 Pt/(kW·h)〕的4.8%、4.6%、3.7%。4)从碳排放水平来看,3种情景下光伏组件单位发电量碳排放量分别是35.68、33.53、23.70 g/(kW·h)(CO2当量值),低于同类研究和我国电力行业水平。5)我国早期安装的光伏组件已接近报废周期,因此,大力发展光伏组件回收技术,不仅可以实现资源的回收,还可以降低光伏组件全生命周期环境影响,减少碳排放,从而实现能源环境双赢。

     

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  • 收稿日期:  2020-10-27
  • 刊出日期:  2021-07-20

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