中国电机工程学报2025，Vol.45Issue(14)：5381-5391,中插4,12.DOI:10.13334/j.0258-8013.pcsee.240411
CO2-H2S混合工质动力循环的动态响应特性
Dynamic Performance of CO2-H2S Mixture Power Cycle
摘要
Abstract
The introduction of CO2 mixture can effectively address issues such as high operating pressures and inadequate matching with cold sources in the pure CO2 power cycle.To reveal the differences in dynamic response performance between a pure CO2 power cycle and a CO2 mixture power cycle,and to guide the practical operation of CO2 mixture power cycle test rigs,a dynamic simulation model of CO2/H2S mixture power cycle is developed,and experimental data are utilized for model validation.Initial investigations are conducted on the open-loop dynamic performance of CO2 mixture power cycle with varying mass fractions of H2S under the perturbation of cold and heat sources,as well as pump speeds,followed by a more in-depth analysis of the closed-loop load following performance of the CO2 mixture power cycle.The results show that the thermal efficiency of a CO2/H2S mixture power cycle improves under different boundary perturbations compared to the pure CO2 power cycle.Additionally,the thermal efficiency increases as the mass fraction of H2S increases.Moreover,the addition of H2S can effectively minimize the decrease in thermal efficiency with load during load-following operation.The findings offer theoretical guidance for the practical implementation of the CO2 mixture power cycle.关键词
CO2/H2S混合工质/动力循环/高温热力发电/动态特性/开环响应/负荷追踪Key words
CO2/H2S mixture/power cycle/high-temperature thermal power generation/dynamic performance/open-loop response/load-following分类
能源科技引用本文复制引用
边幸燕,王轩,凌智,王瑞,田华,舒歌群..CO2-H2S混合工质动力循环的动态响应特性[J].中国电机工程学报,2025,45(14):5381-5391,中插4,12.基金项目
国家重点研发计划项目(2022YFE0100100). National Key R&D Program of China(2022YFE0100100). （2022YFE0100100）
