摘要
提出一种新的氢储能耦合天然气燃气蒸汽联合循环系统(HGSCC)并对其进行能量分析和分析。计算稳态工况下HGSCC系统效率并分析了电流密度对产氢的影响和燃料中氢气的比例对系统效率影响,结果表明:虽然HGSCC较传统GSCC系统更为复杂,能量损失较大,但HGSCC系统能更好利用新能源发电的多余电能。考虑到新能源发电的波动性,电解槽电流密度在4000 A/m^(2)最为合理。通过提高氢气的比例,可提高燃烧室出口温度,增加能量的利用,提高系统整体的效率。
A new system(HGSCC)which hydrogen storage coupled Gas-steam Combined Cycle is proposed and its energy analysis and exergy analysis are carried out.The efficiency of HGSCC system under steady-state condition is calculated,the influence of current density on hydrogen production and the proportion of hydrogen in fuel on the exergy efficiency of the system are analyzed.The results show that although HGSCC system is more complex than traditional GSCC system and the energy loss is larger,the HGSCC system can make better use of the excess energy of new energy generation.Considering the fluctuation of new energy generation,the current density of the electrolytic cell is reasonable at 4000 A/m^(2).Increasing the proportion of hydrogen,the outlet temperature of combustion chamber and the utilization of exergy can be increased,moreover the overall exergy efficiency of the system can be improved.
作者
周兆伦
Zhou Zhaolun(School of Electrical Engineering,Xinjiang University,Urumqi 830002,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第5期39-45,共7页
Acta Energiae Solaris Sinica
关键词
氢储能
联合循环发电
转化效率
hydrogen storage
combined cycle power plant
exergy
conversion efficiency
