中国能源系统生命周期碳排放的时间有效性

能源系统生命周期清单分析数据库是产品或系统生命周期评价的基础，由于我国能源生产过程的基础数据种类繁多且更新较快，能源上游清单数据库需要考虑时间有效性的影响.结合单因素敏感性分析和参数自身时效性分析的方法筛选出10个对主要能源系统生命周期碳排放影响较大的时间敏感参数，并进行更新时间间隔划分.此方法可以减少生命周期评价数据库维护工作量，也为提高产品或系统生命周期评价的可靠性打下基础.
Energy system life cycle inventory database is the base of a product or system life cycle assessment. Due to a great variety and rapidly update frequency, the temporal validity of parameters should be considered in uncertainty analysis of life cycle assessment of energy upstream stage. Ten key parameters related to energy system life cycle carbon emission were screened by combined sensitivity and parameter time validity analysis, and the update interval of key parameters was devised. This method can reduce the maintenance workload of the database, and provide a foundation for improving the reliability of the product or system life cycle