船用燃气轮机超临界CO<sub>2</sub>/有机闪蒸余热回收循环的热力学分析

王喜军; 王顺森; 吴闯; 刘雨婷; 孙兴业; 陈达

doi:10.7652/xjtuxb201911010

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船用燃气轮机超临界CO₂/有机闪蒸余热回收循环的热力学分析

更新时间：2025-07-09

- 船用燃气轮机超临界CO₂/有机闪蒸余热回收循环的热力学分析
- Thermodynamic Analysis on the Combined Supercritical CO₂/Organic Flash Cycle for Waste Heat Recovery from Shipborne Gas Turbine
- 西安交通大学学报 2019年53卷第11期页码：71-78
- 作者机构：
  
  西安交通大学叶轮机械研究所,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201911010
  中图分类号： TK124
- 网络首发：2019-11-10，
  
  纸质出版：2019
- 稿件说明：
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王喜军, 王顺森, 吴闯, 等. 船用燃气轮机超临界CO₂/有机闪蒸余热回收循环的热力学分析[J]. 西安交通大学学报, 2019,53(11):71-78. DOI: 10.7652/xjtuxb201911010.

Thermodynamic Analysis on the Combined Supercritical CO₂/Organic Flash Cycle for Waste Heat Recovery from Shipborne Gas Turbine[J]. 2019, 53(11): 71-78. DOI: 10.7652/xjtuxb201911010.
王喜军, 王顺森, 吴闯, 等. 船用燃气轮机超临界CO₂/有机闪蒸余热回收循环的热力学分析[J]. 西安交通大学学报, 2019,53(11):71-78. DOI: 10.7652/xjtuxb201911010. DOI：

Thermodynamic Analysis on the Combined Supercritical CO₂/Organic Flash Cycle for Waste Heat Recovery from Shipborne Gas Turbine[J]. 2019, 53(11): 71-78. DOI: 10.7652/xjtuxb201911010. DOI：

摘要

为了提高船用燃气轮机效率并降低排烟温度

提出一种由超临界CO

循环和有机闪蒸循环组成的新型余热回收循环:该循环中超临界CO

循环回收高温烟气

有机闪蒸循环回收低温烟气。对该系统进行了热力学分析和以循环净功率为目标函数的优化分析

结果表明:在基本工况下

接入该余热回收循环后的燃气轮机热效率和效率高达50.4%和68.93%

比未接余热回收循环的燃气轮机热效率提高了44%

效率提高了43.6%; 冷凝器损最大

为842.04 kW

占余热回收循环总的6%; 当CO

压气机压比越大、加热器1和加热器2的端点温差越小时

余热回收循环的净功率越大; 有机闪蒸循环的蒸发温度处于最佳值时

余热回收循环净功率最大; 当有机工质为对二甲苯时

该余热回收循环的净功率最高

为9 759.64 kW

最终排烟温度最低

为177.6 ℃。

Abstract

To improve the efficiency of the shipborne gas turbine and reduce the temperature of exhaust gas

a novel waste heat recovery cycle composed of supercritical carbon dioxide regenerator Brayton cycle and organic flash cycle is proposed

in which the supercritical carbon dioxide recycles the high temperature exhaust gas

and the organic flash cycle recovers the low temperature exhaust gas. Then

thermodynamic analysis of the cycle and optimi-ation of the target function with cyclic net power are conducted. The results show that under the basic conditions

the thermal efficiency and enthalpy efficiency of the gas turbine after the waste heat recovery cycle are up to 50.4% and 68.93%

which is 44% and 43.6% higher than that of the stand-alone gas turbine cycle

respectively. In addition

the largest value of exergy loss is 842.04 kW in the condenser

accounting for 6% of the system total exergy value. When the carbon dioxide compression pressure ratio is larger and the terminal temperature

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船用燃气轮机超临界CO2/有机闪蒸余热回收循环的热力学分析

Thermodynamic Analysis on the Combined Supercritical CO2/Organic Flash Cycle for Waste Heat Recovery from Shipborne Gas Turbine

DOI：10.7652/xjtuxb201911010

摘要

Abstract

关键词

Keywords

references

船用燃气轮机超临界CO₂/有机闪蒸余热回收循环的热力学分析

Thermodynamic Analysis on the Combined Supercritical CO₂/Organic Flash Cycle for Waste Heat Recovery from Shipborne Gas Turbine