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基于生命周期评价的八字嘴航电枢纽工程节能减碳效益评估
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Abstract:
航电枢纽在促进区域经济发展的同时，在应对气候变化方面亦发挥了重要作用。以江西省八字嘴航电枢纽工程为例，基于生命周期评价法(LCA)对航电枢纽碳足迹进行调查评估，并构建了节能减碳效益评价模型，结果发现：1) 八字嘴航电枢纽工程生命周期碳足迹为2.3 × 106 t CO2eq，其建设阶段和运行阶段的碳足迹分别为0.49 × 106 t CO2eq和1.79 × 106 t CO2eq，分别占总碳足迹的18%和82%；2) 八字嘴航电枢纽工程运营期内向外输送的电量达128.40 × 108 kWh，总减碳量达4.66 × 106 t CO2eq。该研究表明以该航电枢纽工程为代表的江西航电工程开发价值大、节能减碳效果显著，可为准确核算航电枢纽项目的碳排放及其环境效益提供精细指导，同时对于探索双碳目标的实现路径具有一定的支撑作用。
Navigation-power junction project not only promotes regional economic development, but also plays an effective role to cope with climate change. This study takes the Bazizui navigation-power junction project in Jiangxi province as an example, the carbon footprint of navigation and power hub is investigated and evaluated based on life cycle assessment, and builds an evaluation model of energy saving and carbon reduction benefits based on this. The results show that: 1) The carbon footprint of Bazizui navigation-power junction project is 109.82 × 104 t CO2eq, and the carbon footprint of the construction and operation periods are 0.49 × 106 t CO2eq and 2.3 × 106 t CO2eq respectively. 2) The total electricity delivered by the project is 128.4 × 108 kWh in the 30-year op-eration period, and the total carbon reduction is 4.66 × 106 t CO2eq. The research results have certain guidance and reference significance for accurate accounting of carbon emissions and en-vironmental benefits of Navigation-power junction project. It has a certain theoretical and practical guiding significance for Jiangxi to explore the path of realizing dual carbon goal.
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