Life Cycle Environmental Impact Assessment Of Power Flow Acquisition Device

With the increasing demand for global energy and the growing concern for environmental protection,renewable energy has gradually become a focus of attention.Tidal energy,which has zero carbon characteristics,long service life and other advantages,has become a widely studied method for obtaining renewable energy.This study aims to objectively and comprehensively evaluate the lifecycle of tidal energy devices,explore their sustainability,environmental impact,and further development directions,to provide a scientific basis for the application and promotion of this technology.Taking the oscillating water column tidal energy device as the research subject,its system division and inventory analysis were conducted.Based on the manufacturing process and materials of the main components of the device’s systems,a feature model for lifecycle evaluation was established.The materials and processes involved in the lifecycle of the tidal energy device were analyzed,and a data collection process for the lifecycle inventory of the tidal energy device was established through literature review and reasonable assumptions.Based on the lifecycle inventory analysis method,an environmental impact assessment was carried out on the passive oscillating water column tidal energy device.The input material categories and corresponding production and installation energy consumption information of the production and use stages of the passive oscillating water column were analyzed.Based on this,the environmental impact of the product’s full lifecycle was evaluated.Qualitative and quantitative research was further conducted based on the results of inventory analysis.Considering factors such as the region of use,working environment,and power consumption of the device,greenhouse gas emissions were calculated for the device’s lifecycle,and sensitivity and uncertainty analyses were conducted.The results showed that some materials used in the device and the environmental impact caused by the production process of these materials were the largest.Among the systems of the tidal energy device,the support part that used the most aluminum alloy and stainless steel materials had the largest environmental impact.Various feasible solutions were proposed to reduce energy consumption and carbon dioxide emissions,and to improve the environmental performance of the tidal energy device throughout its lifecycle.