Article(id=1222513213908968344, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222513210519970621, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202302021, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1676736000000, receivedDateStr=2023-02-19, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769399463393, onlineDateStr=2026-01-26, pubDate=1700841600000, pubDateStr=2023-11-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769399463393, onlineIssueDateStr=2026-01-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769399463393, creator=13701087609, updateTime=1769399463393, updator=13701087609, issue=Issue{id=1222513210519970621, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='11', pageStart='1', pageEnd='198', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769399462585, creator=13701087609, updateTime=1769405983425, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222540560984957089, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222513210519970621, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222540560984957090, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222513210519970621, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=67, endPage=75, ext={EN=ArticleExt(id=1222513214886241197, articleId=1222513213908968344, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Analysis of waste heat utilization and dynamic characteristics of gas turbine/supercritical carbon dioxide combined cycle, columnId=1222513211350442816, journalTitle=Thermal Power Generation, columnName=Special topic on supercritical carbon dioxide cycle power generation technology, runingTitle=null, highlight=null, articleAbstract=
Supercritical carbon dioxide cycle has many advantages such as small turbine size, small compressor power consumption and high cycle efficiency. In order to explore the cycle configuration with the highest power generation efficiency after the power generation system of supercritical carbon dioxide cycle coupled gas turbine, four cycle layouts were proposed. The main parameters of the circulating system were optimized by genetic algorithm with the maximum circulating efficiency as the optimization objective. Among the four schemes, the gas turbine/two-turbine supercritical carbon dioxide combined cycle system has the highest cycle efficiency, which is 44.87%. And the dynamic system analysis of the scheme, with the bottom cycle input heat load as the disturbance variable, explore the dynamic response of the system after the step reduction from full load to 90% load, 80% load and 70% load respectively. The results show that the response time of parameters near the flue gas heat exchanger is faster and the response time is longer when the shadow of thermal inertia is farther away from the flue gas heat exchanger in the working medium flow. At the same position, the response time of pressure is slightly longer than that of temperature, and the drop range of parameters near the high-temperature turbine is greater than that of the low-temperature turbine.
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超临界二氧化碳(S-CO2)循环具有透平尺寸小、压缩机功耗小、循环效率高等诸多优势。为了探究S-CO2循环耦合燃气轮机发电系统后发电效率最高的循环配置,提出了4种循环布局;并通过遗传算法以循环效率最高为优化目标,对循环系统的主要参数进行优化;对该方案进行动态系统分析,以底部循环输入热负荷为扰动变量,探究从满负荷分别阶跃降低到90%负荷、80%负荷和70%负荷后系统的动态响应情况。结果表明:4种方案中燃气轮机/两透平S-CO2联合循环系统循环效率最高,为44.87%;烟气换热器附近参数响应时间比较快,而由于热惯性的影响在工质流程中离烟气换热器越远响应时间越长;且在同一位置,压力的响应时间略长于温度的响应时间,高温透平附近参数的下降幅度大于低温透平。
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Cycle configuration, figureFileSmall=Out549TOony8HkNalbxb4w==, figureFileBig=TaAOtdZFKvB3P8+z7Uy5uA==, tableContent=null), ArticleFig(id=1241137053283439263, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=图1, caption=
循环配置1—燃气轮机系统;2—烟气换热器;3、10—透平;4、8—回热器;5—冷却器;6、9—压缩机;7—发电机。
, figureFileSmall=Out549TOony8HkNalbxb4w==, figureFileBig=TaAOtdZFKvB3P8+z7Uy5uA==, tableContent=null), ArticleFig(id=1241137054780805804, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Fig.2, caption=
Comparison diagram of heat exchanger verification, figureFileSmall=wiRZXV40BNwVodTg3Rd0tA==, figureFileBig=dMQQWY24AiCrDd+z2SzVXA==, tableContent=null), ArticleFig(id=1241137054885663410, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=图2, caption=
换热器验证对比, figureFileSmall=wiRZXV40BNwVodTg3Rd0tA==, figureFileBig=dMQQWY24AiCrDd+z2SzVXA==, tableContent=null), ArticleFig(id=1241137055019881150, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Fig.3, caption=
Schematic diagram of dynamic model of MSP platform, figureFileSmall=US5JSZgG3anwRCZ432cuAQ==, figureFileBig=TBjqMGG4SGJYwHyKjSbU7w==, tableContent=null), ArticleFig(id=1241137055099572935, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=图3, caption=
MSP平台动态模型示意, figureFileSmall=US5JSZgG3anwRCZ432cuAQ==, figureFileBig=TBjqMGG4SGJYwHyKjSbU7w==, tableContent=null), ArticleFig(id=1241137055179264719, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Fig.4, caption=
The heat load varies with time, figureFileSmall=+b9I8NmCXm0YgZlUCv45Cw==, figureFileBig=Q/HrmfsDbcuQOS1V8ren5A==, tableContent=null), ArticleFig(id=1241137055288316633, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=图4, caption=
热负荷随时间变化, figureFileSmall=+b9I8NmCXm0YgZlUCv45Cw==, figureFileBig=Q/HrmfsDbcuQOS1V8ren5A==, tableContent=null), ArticleFig(id=1241137055426728677, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Fig.5, caption=
Variation of turbine output power with heat load, figureFileSmall=2AfMKgNYU/KHMTJOfk13ww==, figureFileBig=WuMpjDZtxfz2dOdIa/Q52Q==, tableContent=null), ArticleFig(id=1241137055510614763, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=图5, caption=
透平输出功率随热负荷的变化, figureFileSmall=2AfMKgNYU/KHMTJOfk13ww==, figureFileBig=WuMpjDZtxfz2dOdIa/Q52Q==, tableContent=null), ArticleFig(id=1241137055602889460, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Fig.6, caption=
Influence of heat load variation on main parameters of S-CO2 cycle, figureFileSmall=pnxuhRl2DYwAF04ZK/Xcxg==, figureFileBig=WKdSj71VNjsuox4/48+7UA==, tableContent=null), ArticleFig(id=1241137055741301502, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=图6, caption=
热负荷变化对S-CO2循环主要参数的影响, figureFileSmall=pnxuhRl2DYwAF04ZK/Xcxg==, figureFileBig=WKdSj71VNjsuox4/48+7UA==, tableContent=null), ArticleFig(id=1241137055904879363, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Fig.7, caption=
Turbine flow variation, figureFileSmall=wT0ErqtJjcaqbLXb5i0Uyw==, figureFileBig=gOXksFG6Hl+QWd/pWNIS2Q==, tableContent=null), ArticleFig(id=1241137056022319883, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=图7, caption=
透平流量变化, figureFileSmall=wT0ErqtJjcaqbLXb5i0Uyw==, figureFileBig=gOXksFG6Hl+QWd/pWNIS2Q==, tableContent=null), ArticleFig(id=1241137056131371793, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Tab.1, caption=
Key parameters of the gas turbine system
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 数值 |
|---|
| 燃气轮机净功率/kW | 1 777.00 |
| 燃料量/(kg·s–1) | 0.14 |
| 燃料低位发热量/(kJ·kg–1) | 50 015.00 |
| 排烟流量/(kg·s–1) | 8.62 |
| 排烟温度/℃ | 576.16 |
| 燃气轮机循环效率/% | 24.59 |
), ArticleFig(id=1241137056253006619, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=表1, caption=
燃气轮机系统关键参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 数值 |
|---|
| 燃气轮机净功率/kW | 1 777.00 |
| 燃料量/(kg·s–1) | 0.14 |
| 燃料低位发热量/(kJ·kg–1) | 50 015.00 |
| 排烟流量/(kg·s–1) | 8.62 |
| 排烟温度/℃ | 576.16 |
| 燃气轮机循环效率/% | 24.59 |
), ArticleFig(id=1241137056345281314, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Tab.2, caption=
Four solution device configurations
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 烟气换热器台数 | 冷却器台数 | 透平台数 | 压缩机台数 | 回热器台数 |
|---|
| 方案1 | 1 | 1 | 1 | 1 | 1 |
| 方案2 | 1 | 1 | 1 | 2 | 2 |
| 方案3 | 1 | 1 | 2 | 2 | 2 |
| 方案4 | 1 | 1 | 2 | 1 | 2 |
), ArticleFig(id=1241137056500470573, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=表2, caption=
4个方案设备配置
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| 方案 | 烟气换热器台数 | 冷却器台数 | 透平台数 | 压缩机台数 | 回热器台数 |
|---|
| 方案1 | 1 | 1 | 1 | 1 | 1 |
| 方案2 | 1 | 1 | 1 | 2 | 2 |
| 方案3 | 1 | 1 | 2 | 2 | 2 |
| 方案4 | 1 | 1 | 2 | 1 | 2 |
), ArticleFig(id=1241137056672437049, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Tab.3, caption=
Parameter optimization range
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| 项目 | 数值 |
|---|
| 最高压力/MPa | 20.00~30.00 |
| 最低压力/MPa | 7.40~9.00 |
| 最低温度/℃ | 31.85~35.00 |
| S-CO2质量流量/(kg·s–1) | 5.00~25.00 |
| 分流比 | 0~1.00 |
), ArticleFig(id=1241137056798266176, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=表3, caption=
参数优化范围
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| 项目 | 数值 |
|---|
| 最高压力/MPa | 20.00~30.00 |
| 最低压力/MPa | 7.40~9.00 |
| 最低温度/℃ | 31.85~35.00 |
| S-CO2质量流量/(kg·s–1) | 5.00~25.00 |
| 分流比 | 0~1.00 |
), ArticleFig(id=1241137056890540872, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Tab.4, caption=
Genetic algorithm optimization results
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| 项目 | 最高压力/MPa | 最低压力/MPa | 最低温度/℃ | S-CO2质量流量/(kg·s–1) | 分流比/% | 循环效率/% |
|---|
| 方案1 | 30.00 | 7.65 | 31.85 | 11.59 | | 41.26 |
| 方案2 | 30.00 | 7.66 | 31.85 | 11.80 | 1.00 | 41.45 |
| 方案3 | 28.91 | 7.96 | 31.85 | 21.28 | 35.63 | 44.23 |
| 方案4 | 30.00 | 7.63 | 31.85 | 14.11 | 47.06 | 44.87 |
), ArticleFig(id=1241137056991204176, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=表4, caption=
遗传算法优化结果
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| 项目 | 最高压力/MPa | 最低压力/MPa | 最低温度/℃ | S-CO2质量流量/(kg·s–1) | 分流比/% | 循环效率/% |
|---|
| 方案1 | 30.00 | 7.65 | 31.85 | 11.59 | | 41.26 |
| 方案2 | 30.00 | 7.66 | 31.85 | 11.80 | 1.00 | 41.45 |
| 方案3 | 28.91 | 7.96 | 31.85 | 21.28 | 35.63 | 44.23 |
| 方案4 | 30.00 | 7.63 | 31.85 | 14.11 | 47.06 | 44.87 |
), ArticleFig(id=1241137057083478870, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=EN, label=Tab.5, caption=
Parametric response time
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 100%降至90%负荷 | 90%降至80%负荷 | 80%降至70%负荷 |
|---|
| 高温透平入口温度 | 1 328 | 924 | 836 |
| 高温回热器热侧入口温度 | 1 326 | 902 | 800 |
| 低温透平入口温度 | 2 152 | 2 006 | 1 931 |
| 低温回热器热侧入口温度 | 2 409 | 2 085 | 2 066 |
| 高温透平入口压力 | 809 | 530 | 369 |
| 低温透平入口压力 | 1 602 | 1 502 | 1 412 |
| 高温透平输出功率 | 1 329 | 911 | 821 |
| 低温透平输出功率 | 1 770 | 1 767 | 1 743 |
), ArticleFig(id=1241137057196725087, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1222513213908968344, language=CN, label=表5, caption=
参数响应时间
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 100%降至90%负荷 | 90%降至80%负荷 | 80%降至70%负荷 |
|---|
| 高温透平入口温度 | 1 328 | 924 | 836 |
| 高温回热器热侧入口温度 | 1 326 | 902 | 800 |
| 低温透平入口温度 | 2 152 | 2 006 | 1 931 |
| 低温回热器热侧入口温度 | 2 409 | 2 085 | 2 066 |
| 高温透平入口压力 | 809 | 530 | 369 |
| 低温透平入口压力 | 1 602 | 1 502 | 1 412 |
| 高温透平输出功率 | 1 329 | 911 | 821 |
| 低温透平输出功率 | 1 770 | 1 767 | 1 743 |
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