陈志董,张菁,詹宏伟,孔艳强,杨立军,杜小泽

• 1:华北电力大学电站能量传递转化与系统教育部重点实验室

摘要(Abstract)：

质子交换膜（protonexchangemembrane,PEM）电解槽可以将绿电转化为氢能，但PEM电解槽的能量转化效率较低，电解槽出口水的能量未被充分利用。为了充分利用PEM电解制氢系统中的余热，在发电和热电联产2种运行模式下，提出了集成660 MW燃煤电站和PEM电解槽的耦合系统；使用EBSILON和MATLAB Simulink软件进行建模，并对系统进行了热力学和经济性分析。提出发电模式中，将电解槽的出口水用于加热燃煤机组的给水；在热电联产模式中，将电解槽的出口水与抽汽共同用于加热供热网络的回水；产生的氧气输送到锅炉中燃烧，进而促进炉内燃烧。结果显示：与参考燃煤电站相比，发电模式中的供电量增加了2.55MW，供电效率提高了0.17百分点，锅炉效率提高了0.04百分点；热电联产模式中，供电量增加了5.83MW，系统总效率提高了0.40百分点。将机组出功增加量折算到PEM制氢系统后，在发电模式下PEM制氢系统的?效率达到69.74%，提高了3.44百分点；在热电联产模式下PEM制氢系统的?效率达到75.41%，提高了9.11百分点。2种模式下的系统?效率分别为40.20%和40.18%。电解制氢经济性分析显示：发电和热电联产模式的年售电收入增长分别为546万元和1246万元，净现值增长分别为6 132万元和14 014万元；独立系统中的平准化制氢成本为42.72元/kg；集成后发电和热电联产模式下的平准化制氢成本分别为42.55、40.79元/kg。

关键词(KeyWords)： 质子交换膜电解槽;燃煤电站;制氢;技术经济性分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目（52276062,52076076）~~

作者(Author): 陈志董,张菁,詹宏伟,孔艳强,杨立军,杜小泽

DOI: 10.19666/j.rlfd.202405131

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