点吸收波能转换器的生命周期评价

IF 6.1 Q2 ENGINEERING, ENVIRONMENTAL
Tabea Engelfried , Stefano Cucurachi , George Lavidas
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引用次数: 0

摘要

利用波浪能转换器(WECs)从海洋中利用波浪能,为欧洲未来的可再生能源系统多样化提供了巨大的机会。虽然这种预商业化技术的能源转换与温室气体排放没有直接联系,但要确保未来大规模应用无碳化碳,需要确保整个生命周期的环境可持续性。因此,我们提出了一项基于完全透明和适应性生命周期清单的通用点吸收器WEC的从摇篮到坟墓的全生命周期评估(LCA)研究。在研究中,我们评估了单点吸收装置的环境影响,不同船体材料的影响,WEC组件影响中的热点,以及不同部署位置引起的变化。对于部署在北海的WEC,我们发现全球变暖影响为300-325gCO2eq。/kWh与外围和52-77gCO2eq。/kWh无外围,取决于船体材料。在船体中使用替代纤维增强混凝土材料可以将所有类别的影响减少10%(海洋富营养化)到78%(人体毒性,致癌性)。除了WEC本身,我们发现电缆和船舶操作,特别是维护,是重要的贡献者。这两个要素也将与其他海洋可再生能源相关,如海上风能和浮动太阳能。总的来说,这项研究显示了改善WECs对环境影响的潜力,并确定了实现这种减少的可能手段。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Life cycle assessment of a point absorber wave energy converter

Life cycle assessment of a point absorber wave energy converter
Harnessing wave energy from the oceans using wave energy converters (WECs) offers a huge opportunity to diversify Europe's future renewable energy system. Although the energy conversion of this pre-commercial technology is not directly linked to greenhouse gas emissions, environmental sustainability over the full life cycle needs to be ensured for a future-proof large-scale application of WECs. Therefore, we present a cradle-to-grave full life cycle assessment (LCA) study for a generic point absorber WEC based on a fully transparent and adaptable life cycle inventory. Within the study we assess the environmental impacts of a single point absorber device, the influence of different hull materials, hotspots in the impacts of WEC components, and variations induced by different deployment locations. For a WEC deployed in the North Sea, we found a global warming impact of 300-325gCO2eq./kWh with periphery and 52-77gCO2eq./kWh without periphery, depending on the hull material. Using an alternative fibre-reinforced concrete material for the hull can reduce the impact across all categories by between 10% (marine eutrophication) and 78% (human toxicity, carcinogenic). In addition to the WEC itself we found that the electrical cable and vessel operations, particularly for maintenance, are significant contributors. These two elements will also be relevant to other marine renewables such as offshore wind and floating solar. Overall, this study shows potential for improving environmental impacts from WECs and identifies possible levers to achieve such a reduction.
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来源期刊
Cleaner Environmental Systems
Cleaner Environmental Systems Environmental Science-Environmental Science (miscellaneous)
CiteScore
7.80
自引率
0.00%
发文量
32
审稿时长
52 days
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