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Techno-enviro-economic analysis of hydrogen production via low and high temperature electrolyzers powered by PV/Wind turbines/Waste heat
Energy Conversion and Management ( IF 9.9 ) Pub Date : 2023-01-21 , DOI: 10.1016/j.enconman.2023.116693
Mohamed Nasser , Hamdy Hassan

The current study presents techno, economic and environmental assessment of hydrogen production systems using low (PEM, Proton exchange membrane) and high temperature electrolyzers (SOEC, solid oxide electrolyzer cell) powered by different energy sources. These sources are PV panels, wind turbines, Rankine cycle based on waste heat recovery, and electricity from grid. The mathematical model of the whole system is constructed and solved using MATLAB/Simulink based on actual data: climatic conditions and waste heat streams. The system efficiency and hydrogen production rate are evaluated for all systems. A sensitivity analysis is performed to investigate the Levelized cost of hydrogen (LCOH) and Levelized cost of compressed hydrogen (LCOCH) under three factors: interest rate, inflation rate, and degradation rate. Additionally, economic risk evaluation based on payback period, internal rate of return, and net present value are conducted to investigate the investment opportunity. The results indicate that the highest overall efficiency is obtained using waste heat systems at 22.91%, and the low efficiency is 11.6% for PV systems. The LCOH varies from 1.19 to 12.16 $/kg, while the LCOCH varies from 5.03 to 17.1 $/kg. The lowest value is obtained when waste heat is employed, followed by the grid, PV panels, and wind turbines. Wind turbine systems are not recommended at selling prices of 8 and 10 $/kg, but the waste heat system shows good potential for an investment opportunity. Finally, according to the system configurations, annual CO2 emissions reduction ranges from 4.81 to 1365 tons and carbon credit gain (CCG) from 192 to 54,600 $.



中文翻译:

通过光伏/风力涡轮机/余热供电的低温和高温电解槽制氢的技术环境经济分析

目前的研究对使用由不同能源提供动力的低温(PEM,质子交换膜)和高温电解槽(SOEC,固体氧化物电解槽)的制氢系统进行了技术、经济和环境评估。这些来源包括光伏电池板、风力涡轮机、基于废热回收的朗肯循环以及来自电网的电力。整个系统的数学模型是使用 MATLAB/Simulink 基于实际数据构建和求解的:气候条件和废热流。评估所有系统的系统效率和氢气生产率。进行敏感性分析以研究氢的平准化成本 (LCOH) 和压缩氢的平准化成本 (LCOCH) 在三个因素下:利率、通货膨胀率和降解率。此外,基于投资回收期、内部收益率和净现值进行经济风险评估,以考察投资机会。结果表明,使用余热系统获得的总效率最高,为 22.91%,而光伏系统的效率最低,为 11.6%。LCOH 在 1.19 到 12.16 $/kg 之间变化,而 LCOCH 在 5.03 到 17.1 $/kg 之间变化。使用废热时获得的值最低,其次是电网、光伏电池板和风力涡轮机。不建议以 8 美元和 10 美元/公斤的售价出售风力涡轮机系统,但余热系统显示出良好的投资机会潜力。最后,根据系统配置,每年的CO 结果表明,使用余热系统获得的总效率最高,为 22.91%,而光伏系统的效率最低,为 11.6%。LCOH 在 1.19 到 12.16 $/kg 之间变化,而 LCOCH 在 5.03 到 17.1 $/kg 之间变化。使用废热时获得的值最低,其次是电网、光伏电池板和风力涡轮机。不建议以 8 美元和 10 美元/公斤的售价出售风力涡轮机系统,但余热系统显示出良好的投资机会潜力。最后,根据系统配置,每年的CO 结果表明,使用余热系统获得的总效率最高,为 22.91%,而光伏系统的效率最低,为 11.6%。LCOH 在 1.19 到 12.16 $/kg 之间变化,而 LCOCH 在 5.03 到 17.1 $/kg 之间变化。使用废热时获得的值最低,其次是电网、光伏电池板和风力涡轮机。不建议以 8 美元和 10 美元/公斤的售价出售风力涡轮机系统,但余热系统显示出良好的投资机会潜力。最后,根据系统配置,每年的CO 其次是电网、光伏电池板和风力涡轮机。不建议以 8 美元和 10 美元/公斤的售价出售风力涡轮机系统,但余热系统显示出良好的投资机会潜力。最后,根据系统配置,每年的CO 其次是电网、光伏电池板和风力涡轮机。不建议以 8 美元和 10 美元/公斤的售价出售风力涡轮机系统,但余热系统显示出良好的投资机会潜力。最后,根据系统配置,每年的CO2减排量从 4.81 吨到 1365 吨不等,碳信用收益 (CCG) 从 192 美元到 54,600 美元不等。

更新日期:2023-01-21
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