CIESC Journal ›› 2025, Vol. 76 ›› Issue (4): 1680-1692.DOI: 10.11949/0438-1157.20241022
• Process system engineering • Previous Articles Next Articles
Wen CHAN1,2(), Wan YU1,2, Gang WANG1,2, Huashan SU1,2, Fenxia HUANG1,2, Tao HU1,2(
)
Received:
2024-09-11
Revised:
2025-01-06
Online:
2025-05-12
Published:
2025-04-25
Contact:
Tao HU
产文1,2(), 余万1,2, 王岗1,2, 苏华山1,2, 黄芬霞1,2, 胡涛1,2(
)
通讯作者:
胡涛
作者简介:
产文(1990—),男,博士,校聘副教授,chanwen@ctgu.edu.cn
基金资助:
CLC Number:
Wen CHAN, Wan YU, Gang WANG, Huashan SU, Fenxia HUANG, Tao HU. Thermodynamic and economic analyses and dual-objective optimization of Allam cycle with improved regenerator layout[J]. CIESC Journal, 2025, 76(4): 1680-1692.
产文, 余万, 王岗, 苏华山, 黄芬霞, 胡涛. 改进回热布局的Allam循环热力、经济性能分析和双目标优化[J]. 化工学报, 2025, 76(4): 1680-1692.
参数 | 数值/% |
---|---|
机械效率 | 98 |
CO2透平等熵效率 | 90 |
压缩机多变效率 | 85 |
泵效率 | 85 |
发电机效率 | 99.5 |
Table 1 Efficiencies of fluid machinery[20]
参数 | 数值/% |
---|---|
机械效率 | 98 |
CO2透平等熵效率 | 90 |
压缩机多变效率 | 85 |
泵效率 | 85 |
发电机效率 | 99.5 |
设备 | 系数/% |
---|---|
燃烧室 | 1 |
回热器高压侧 | 1 |
回热器低压侧 | 3 |
分离器 | 2 |
其他换热器 | 2 |
Table 2 Pressure drop coefficients of fluids in components[20]
设备 | 系数/% |
---|---|
燃烧室 | 1 |
回热器高压侧 | 1 |
回热器低压侧 | 3 |
分离器 | 2 |
其他换热器 | 2 |
设备 | 燃料㶲和产品㶲 |
---|---|
燃烧室和透平 | |
CO2压缩机 | |
泵1 | |
泵2 | |
氧化剂压缩机 | |
天然气压缩机 | |
回热器1 | |
回热器2 | |
回热器3 | |
回热器4 |
Table 3 Definitions of fuel and product exergy
设备 | 燃料㶲和产品㶲 |
---|---|
燃烧室和透平 | |
CO2压缩机 | |
泵1 | |
泵2 | |
氧化剂压缩机 | |
天然气压缩机 | |
回热器1 | |
回热器2 | |
回热器3 | |
回热器4 |
项目 | 公式或数值 | 文献 |
---|---|---|
燃烧室透平组件/USD | [ | |
回热器/USD | [ | |
冷却器、中冷器/USD | [ | |
CO2压缩机/USD | [ | |
燃料压缩机/USD | [ | |
泵/USD | [ | |
空分单元/USD | [ | |
发电机/USD | [ | |
系统运行寿命n/年 | 25 | [ |
全年当量运行小时数 | 7446 | [ |
有效利率ieff/% | 10 | [ |
资本回收系数 | [ | |
平准化上涨因子CELF | [ | |
名义上涨率 | rn,FC=3.4%; rn,OMC=2.5% | [ |
首年运行和维护成本OMC0/USD | [ | |
天然气价格/(USD/GJ) | 4.26 | [ |
Table 4 Cost equations of purchased components and economic parameters
项目 | 公式或数值 | 文献 |
---|---|---|
燃烧室透平组件/USD | [ | |
回热器/USD | [ | |
冷却器、中冷器/USD | [ | |
CO2压缩机/USD | [ | |
燃料压缩机/USD | [ | |
泵/USD | [ | |
空分单元/USD | [ | |
发电机/USD | [ | |
系统运行寿命n/年 | 25 | [ |
全年当量运行小时数 | 7446 | [ |
有效利率ieff/% | 10 | [ |
资本回收系数 | [ | |
平准化上涨因子CELF | [ | |
名义上涨率 | rn,FC=3.4%; rn,OMC=2.5% | [ |
首年运行和维护成本OMC0/USD | [ | |
天然气价格/(USD/GJ) | 4.26 | [ |
参数 | 本文模型计算结果 | 文献结果[ |
---|---|---|
透平出口温度/℃ | 724.3 | 727 |
透平流量/(kg/s) | 939.7 | 923 |
冷却器2出口流量/(kg/s) | 889.5 | 881 |
循环热效率/% | 58.04 | 59 |
Table 5 Comparison of results for model validation
参数 | 本文模型计算结果 | 文献结果[ |
---|---|---|
透平出口温度/℃ | 724.3 | 727 |
透平流量/(kg/s) | 939.7 | 923 |
冷却器2出口流量/(kg/s) | 889.5 | 881 |
循环热效率/% | 58.04 | 59 |
参数 | 数值 |
---|---|
输入系统的燃料能量(LHV)/MW | 100 |
环境温度/℃ | 15 |
环境压力/MPa | 0.1013 |
燃烧温度/℃ | 1150 |
透平入口压力/MPa | 30 |
透平出口压力/MPa | 3.4 |
回热器热端最小温差/K | 10 |
回热器夹点温差/K | 5 |
循环最低温度/℃ | 25 |
热空气流量/(kg/s) | 36.2 |
热空气压力/MPa | 0.6 |
热空气温度/℃ | 238 |
流股2分流比例 | 0.537 |
回热器2热流体入口温度/℃ | 238 |
回热器4热流体入口温度/℃ | 500 |
Table 6 Input parameters at basic case
参数 | 数值 |
---|---|
输入系统的燃料能量(LHV)/MW | 100 |
环境温度/℃ | 15 |
环境压力/MPa | 0.1013 |
燃烧温度/℃ | 1150 |
透平入口压力/MPa | 30 |
透平出口压力/MPa | 3.4 |
回热器热端最小温差/K | 10 |
回热器夹点温差/K | 5 |
循环最低温度/℃ | 25 |
热空气流量/(kg/s) | 36.2 |
热空气压力/MPa | 0.6 |
热空气温度/℃ | 238 |
流股2分流比例 | 0.537 |
回热器2热流体入口温度/℃ | 238 |
回热器4热流体入口温度/℃ | 500 |
参数 | Allam基准循环 | 改进Allam循环 |
---|---|---|
透平出口流量/(kg/s) | 174.92 | 174.89 |
透平出口温度/℃ | 737.7 | 737.7 |
透平输出功率/MW | 80.11 | 80.10 |
回热器总热负荷/MW | 152.42 | 152.37 |
回热器总成本/(106 USD) | 42.55 | 30.95 |
CCL/(106 USD) | 29.54 | 25.59 |
FCL/(106 USD) | 15.52 | 15.52 |
OMCL/(106 USD) | 0.54 | 0.46 |
51.94 | 51.93 | |
51.94 | 51.93 | |
49.51 | 49.50 | |
LCOE/(USD/MWh) | 117.92 | 107.52 |
Table 7 Results of Allam cycles at basic case
参数 | Allam基准循环 | 改进Allam循环 |
---|---|---|
透平出口流量/(kg/s) | 174.92 | 174.89 |
透平出口温度/℃ | 737.7 | 737.7 |
透平输出功率/MW | 80.11 | 80.10 |
回热器总热负荷/MW | 152.42 | 152.37 |
回热器总成本/(106 USD) | 42.55 | 30.95 |
CCL/(106 USD) | 29.54 | 25.59 |
FCL/(106 USD) | 15.52 | 15.52 |
OMCL/(106 USD) | 0.54 | 0.46 |
51.94 | 51.93 | |
51.94 | 51.93 | |
49.51 | 49.50 | |
LCOE/(USD/MWh) | 117.92 | 107.52 |
设备 | ||||
---|---|---|---|---|
燃烧室透平组件 | 109.78 | 80.10 | 29.68 | 72.96 |
CO2压缩机 | 7.53 | 4.11 | 3.43 | 54.52 |
泵1 | 1.18 | 0.97 | 0.21 | 82.20 |
泵2 | 3.38 | 2.38 | 1.00 | 70.41 |
氧化剂压缩机 | 2.13 | 1.83 | 0.30 | 85.81 |
天然气压缩机 | 0.53 | 0.47 | 0.06 | 88.01 |
回热器1 | 34.01 | 32.54 | 1.47 | 95.67 |
回热器2 | 8.71 | 7.78 | 0.94 | 89.27 |
回热器3 | 16.07 | 15.75 | 0.32 | 98.00 |
回热器4 | 19.03 | 17.61 | 1.42 | 92.55 |
冷却器1 | — | — | 1.00 | — |
冷却器2 | — | — | 0.19 | — |
Table 8 Exergy results of main components at basic case
设备 | ||||
---|---|---|---|---|
燃烧室透平组件 | 109.78 | 80.10 | 29.68 | 72.96 |
CO2压缩机 | 7.53 | 4.11 | 3.43 | 54.52 |
泵1 | 1.18 | 0.97 | 0.21 | 82.20 |
泵2 | 3.38 | 2.38 | 1.00 | 70.41 |
氧化剂压缩机 | 2.13 | 1.83 | 0.30 | 85.81 |
天然气压缩机 | 0.53 | 0.47 | 0.06 | 88.01 |
回热器1 | 34.01 | 32.54 | 1.47 | 95.67 |
回热器2 | 8.71 | 7.78 | 0.94 | 89.27 |
回热器3 | 16.07 | 15.75 | 0.32 | 98.00 |
回热器4 | 19.03 | 17.61 | 1.42 | 92.55 |
冷却器1 | — | — | 1.00 | — |
冷却器2 | — | — | 0.19 | — |
参数 | 结果A | 结果B | 结果C |
---|---|---|---|
决策变量 | |||
158.7 | 150.0 | 150.0 | |
pmax | 34.9 | 32.5 | 36.0 |
pout,GT | 3.7 | 2.8 | 2.6 |
T6 | 73.7 | 71.4 | 80.7 |
T7 | 68.9 | 66.6 | 79.3 |
目标函数 | |||
ηtot/% | 52.30 | 51.03 | 46.82 |
LCOE/(USD/MWh) | 112.09 | 98.55 | 95.67 |
Table 9 Three representative results of the dual-objective optimization
参数 | 结果A | 结果B | 结果C |
---|---|---|---|
决策变量 | |||
158.7 | 150.0 | 150.0 | |
pmax | 34.9 | 32.5 | 36.0 |
pout,GT | 3.7 | 2.8 | 2.6 |
T6 | 73.7 | 71.4 | 80.7 |
T7 | 68.9 | 66.6 | 79.3 |
目标函数 | |||
ηtot/% | 52.30 | 51.03 | 46.82 |
LCOE/(USD/MWh) | 112.09 | 98.55 | 95.67 |
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