三种LCA核算软件对印花布碳足迹核算的比较

Comparison of the industrial carbon footprint of printed fabrics using three LCA accounting software

基于生命周期评价(LCA)理论的核算软件具有基础数据共享、大量简化核算工作、解决数据储存与调用问题、自动生成表格和图像等优点,目前已应用于产品的工业碳足迹核算。采用目前广泛应用的SimaPro和GaBi两款LCA软件与东华大学工业碳足迹研究项目组开发的核算软件(DHU)分别对印花布的工业碳足迹进行核算。结果表明,DHU核算软件的核算结果比GaBi核算软件高52.19 kgCO2e/1 000 m,比SimaPro核算软件高106.84 kgCO2e/1 000 m。这主要是由于三款核算软件中的排放系数存在差异,而引发排放系数差异性的原因在于核算边界、能源与物料利用率、温室气体种类以及分配方法等方面存在不同。

The LCA（Life Cycle Assessment） accounting software is widely used to calculate the industrial carbon footprint of product, owing to the advantages of sharing the data, simplifying the accounting work, solving the problem of data storage and automatically generating the tables and images, etc. In this paper, popular SimaPro and GaBi LCA accounting software and the DHU（Donghua University） LCA accounting software are used to calculate the industrial carbon footprint of the printed fabric. The results show that the data calculated by DHU accounting software is 52.19 kgCO2e/1 000 m higher than that by GaBi accounting software and is 106.84 kgCO2e/1 000 m higher than that by SimaPro accounting software. Emission factors of the energy and material contribute to the different results. The main reasons caused the difference of emission factors are the accounting boundary, utilization rate of energy and material, greenhouse gas types and the allocation method.