Power Generating Utilization of Liquefied Natural Gas Cold Energy Integrated With Gas Turbine Combined Cycle

Chao WANG

doi:10.12096/j.2096-4528.pgt.2018.041

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Power Generating Utilization of Liquefied Natural Gas Cold Energy Integrated With Gas Turbine Combined Cycle

Power Generation and Environmental Protection | 更新时间：2025-06-06

- Power Generating Utilization of Liquefied Natural Gas Cold Energy Integrated With Gas Turbine Combined Cycle
- Power Generation Technology Vol. 39, Issue 3, Pages: 263-267(2018)
- 作者机构：
  
  中船第九设计研究院工程有限公司, 上海市普陀区 200063
- 作者简介：
- 基金信息：
- DOI：10.12096/j.2096-4528.pgt.2018.041
  CLC：
- Received：03 February 2018，
  
  Published：28 June 2018
- 稿件说明：
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Chao WANG. Power Generating Utilization of Liquefied Natural Gas Cold Energy Integrated With Gas Turbine Combined Cycle[J]. Power Generation Technology, 2018, 39(3): 263-267.
DOI：

Chao WANG. Power Generating Utilization of Liquefied Natural Gas Cold Energy Integrated With Gas Turbine Combined Cycle[J]. Power Generation Technology, 2018, 39(3): 263-267. DOI： 10.12096/j.2096-4528.pgt.2018.041.

摘要

提出了结合燃气-蒸汽联合循环的利用液化天然气（liquefied natural gas，LNG）冷能的朗肯循环发电系统，实现LNG冷能梯级利用。朗肯循环蒸发器和燃气-蒸汽联合循环凝汽器换热量匹配一致，循环水系统实现闭式且不受环境温度影响。对系统进行模拟并分析了影响系统的主要参数，结果显示：随着朗肯循环冷凝温度的降低，朗肯循环净输出功率和净效率均有提升；随着循环水温度的提高，朗肯循环的净输出功率和净效率都将提高，而蒸汽轮机输出功率减少，但二者总的输出功率降低幅度不大。

Abstract

This paper presents a power generation system using liquefied natural gas (LNG) cold energy to implement gradient utilization

which is a Rankine's cycle integrated with gas turbine combined cycle. In this system

the heat transfer of evaporator in Rankine's cycle is equal with that of condenser in gas turbine combined cycle. Circulating water system is in closed type and would not be affected by environmental temperature. The system was simulated

and main influence parameters of the system were analyzed. The results show that:the net output power and efficiency of Rankine's cycle are elevated with the decrease of the condensation temperature in Rankine's cycle; with the rise of circulating water temperature

the net output power and efficiency of Rankine's cycle are elevated while the output power of steam turbine decreases

but the both total power output reduces slightly.

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references

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