电流密度和运行温度对PEM水电解制氢能耗的影响
摘要：摘要质子交换膜（PEM）水电解制氢技术是采用绿电制取绿氢的重要方法,对我国实现双碳目标具有重要意义。优化运行参数是降低PEM水电解制氢系统能耗的一种重要途径。建立一套工业级PEM水电解制氢实验装置,通过现场实验,考察电流密度和运行温度对PEM水电解制氢系统能耗的影响,探讨优化运行参数降低运行能耗的方法。结果表明,当电流密度为0.2 ~ 1.4 A/cm2、运行温度为20 ~ 60℃,PEM水电解制氢系统单位能耗分别与电流密度、运行温度负相关。提高运行温度会引起电解电压下降,系统单位直流能耗显著降低。提高电流密度会造成系统单位直流能耗升高,而单位交流能耗降低。
Abstract:：Proton exchange membrane (PEM) water electrolysis for hydrogen production is a vital technology that acquires hydrogen with green electricity and achieves China's carbon peaking and carbon neutrality goals. It is a good way to reduce energy consumption for PEM water electrolysis system by optimizing operating parameters. In this study, an industrial-scale PEM electrolysis system is set up. The current density and operating temperature influence energy consumption are investigated based on local experiments. Methods are discussed to cut down the energy consumption by optimizing operating parameters. The system shows a decrease in the specific energy consumption when current density and operating temperature are increased from 0.2 to 1.4 A/cm2 and from 20 to 60 oC, respectively. A decline in average cell voltage and the specific direct current energy consumption is observed as the operating temperature is elevated. The specific direct current energy consumption is increased, and the specific alternate current energy consumption is decreased when the current density of the stack is improved in the system.
中文标题：电流密度和运行温度对PEM水电解制氢能耗的影响
英文标题：Influence of Current Density and Operating Temperature on Energy Consumption of PEM Water Electrolysis Hydrogen Generation
发表时间：2023-07-03
作者：
朱宁伟, 赵京辉, 谢海洋, 宋学平, 吉力强, 郭辉进
作者简介：
朱宁伟（1981-）,男,博士,高级工程师,主要从事水电解制氢技术、水处理技术研究。
关键词：质子交换膜,水电解,电流密度,运行温度,能耗,
Key words：proton exchange membrane,water electrolysis,current density,operating temperature,energy consumption,
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