摘要
为了研究长距离输送氢能的经济性,选取两种不同输送方式进行经济性评估。一种方式是将可再生能源转化为电能,通过高压直流电力电缆传输,最终在用户端电解水制氢;另一种方式是先将可再生能源转化为氢气,再通过天然气管道将氢气输送给用户。分组对比了海上电缆、陆上电缆、海上管道、陆上管道四组传输方式,汇总数据分析传输距离、容量因数、传输容量等因素在四种传输方式中对氢的平准化度电成本(LCOE)的影响。结果表明:在4000 km的传输距离下,通过管道输送氢能的最低平准化度电成本为7美元/kg;通过电缆输送电能再转化为氢能输送方式的最低平准化度电成本为9美元/kg。通过提高输送容量系数和传输规模可以进一步降低氢能的输送成本。
In order to study the economy of long⁃distance transportation of hydrogen,two different transportation methods were selected for economic evaluation.One method is to convert renewable energy into electrical energy,transmit it through high⁃voltage DC cables,and ultimately electrolyze water to produce hydrogen at the user end.Another way is to first convert renewable energy into hydrogen,and then transport the hydrogen to users through natural gas pipelines.By using the method of group comparison,the analysis objects were divided into four groups:offshore cables,onshore cables,offshore pipelines,and onshore pipelines.Summarize data to analyze the impact of factors such as transmission distance,capacity factor,and transmission capacity on the levelized cost of energy of hydrogen among the four transmission methods.The results show that the lowest LCOE for transporting hydrogen through pipelines is$7/kg at a transmission distance of 4000 km.The lowest LCOE for converting electrical energy through cables into hydrogen energy transmission is$9/kg.By increasing the transportation capacity coefficient and scale,the transportation cost of hydrogen can be further reduced.
作者
李周波
芦琳
田小江
田永强(编译)
LI Zhoubo;LU Lin;TIAN Xiaojiang;TIAN Yongqiang(Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods Co.,Ltd.,Xi'an 710018,China;CNPC Baoji Petroleum Steel Pipe Co.,Ltd.,Baoji 721008,Shaanxi,China)
出处
《焊管》
2023年第12期58-63,共6页
Welded Pipe and Tube
关键词
可再生能源
氢气
电力电缆
管道输送
renewable energy
hydrogen
power cable
pipeline transportation
