太阳能驱动的界面蒸发作为一种绿色可持续的技术,在灭菌、海水淡化和水净化方面具有广阔的应用前景。尽管目前目前的研究取得了显著进展,但界面蒸发器的太阳能吸收器通常由金属颗粒或半导体材料制成,成本较高,这在一定程度上阻碍了它们...太阳能驱动的界面蒸发作为一种绿色可持续的技术,在灭菌、海水淡化和水净化方面具有广阔的应用前景。尽管目前目前的研究取得了显著进展,但界面蒸发器的太阳能吸收器通常由金属颗粒或半导体材料制成,成本较高,这在一定程度上阻碍了它们的大规模生产。本研究通过一套加工方法,成功地回收了海发菜生物质,并构建了三种基于生物炭的太阳能吸收体。炭化后的海发菜具有良好的亲水性、分层多孔性和微管纳米结构,有助于提高太阳能吸收器的传水能力和蒸汽生成效率。受树木蒸腾作用的启发,这三种太阳能吸收体的二维界面蒸发器在一个太阳照射下,获得了1.1至1.3 kg m-2 h的优异水蒸发速率和80至84%的高光热转换效率,其性能在基于生物炭材料的太阳能吸收器中名列前茅。在室内和室外实验中,该装置实现了高效的蒸汽生成和清洁水生产。展开更多
The global energy related challenges, mainly due to the worldwide growing energy consumption gone with a reduction ofoil and gas availability, is leading to an increasing interest on hydrogen as energy carrier. Molten...The global energy related challenges, mainly due to the worldwide growing energy consumption gone with a reduction ofoil and gas availability, is leading to an increasing interest on hydrogen as energy carrier. Molten salts at temperatures up to 550 ~C can be used as solar heat carrier and storage system, and hydrogen selective membranes can be used to drive reforming reaction at lower temperatures than conventional （〈 550 ~C）, with hydrogen purification achieved thereby. The combination of new technologies such as membranes and membrane reactors, concentrating solar power （CSP） systems and molten salt heat carriers, allows a partial decarbonation of the fossil fuel together with the possibility to carry solar energy in the current natural gas grid. The aim of this work is to present a life cycle assessment of a novel hybrid plant for the production of a mixture of methane and hydrogen, called enriched methane, from a steam reforming reactor whose heat duty is supplied by a molten salt stream heated up by an innovative concentrating solar power （CSP） plant developed by ENEA. The performance of this plant will be evaluated from an environmental point of view by the use of an LCA software （SimaPro7） and compared with the ones of traditional plants （reformer and cracker for the hydrogen production） for the production of enriched methane.展开更多
文摘太阳能驱动的界面蒸发作为一种绿色可持续的技术,在灭菌、海水淡化和水净化方面具有广阔的应用前景。尽管目前目前的研究取得了显著进展,但界面蒸发器的太阳能吸收器通常由金属颗粒或半导体材料制成,成本较高,这在一定程度上阻碍了它们的大规模生产。本研究通过一套加工方法,成功地回收了海发菜生物质,并构建了三种基于生物炭的太阳能吸收体。炭化后的海发菜具有良好的亲水性、分层多孔性和微管纳米结构,有助于提高太阳能吸收器的传水能力和蒸汽生成效率。受树木蒸腾作用的启发,这三种太阳能吸收体的二维界面蒸发器在一个太阳照射下,获得了1.1至1.3 kg m-2 h的优异水蒸发速率和80至84%的高光热转换效率,其性能在基于生物炭材料的太阳能吸收器中名列前茅。在室内和室外实验中,该装置实现了高效的蒸汽生成和清洁水生产。
文摘The global energy related challenges, mainly due to the worldwide growing energy consumption gone with a reduction ofoil and gas availability, is leading to an increasing interest on hydrogen as energy carrier. Molten salts at temperatures up to 550 ~C can be used as solar heat carrier and storage system, and hydrogen selective membranes can be used to drive reforming reaction at lower temperatures than conventional （〈 550 ~C）, with hydrogen purification achieved thereby. The combination of new technologies such as membranes and membrane reactors, concentrating solar power （CSP） systems and molten salt heat carriers, allows a partial decarbonation of the fossil fuel together with the possibility to carry solar energy in the current natural gas grid. The aim of this work is to present a life cycle assessment of a novel hybrid plant for the production of a mixture of methane and hydrogen, called enriched methane, from a steam reforming reactor whose heat duty is supplied by a molten salt stream heated up by an innovative concentrating solar power （CSP） plant developed by ENEA. The performance of this plant will be evaluated from an environmental point of view by the use of an LCA software （SimaPro7） and compared with the ones of traditional plants （reformer and cracker for the hydrogen production） for the production of enriched methane.
