Influence of preheating temperature of nature gas on performance of gas-stem combined cycle

FU Zhongguang; WANG Xiaonan; LU Ke; ZHANG Hui

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Influence of preheating temperature of nature gas on performance of gas-stem combined cycle

更新时间：2025-09-28

- Influence of preheating temperature of nature gas on performance of gas-stem combined cycle
- Thermal Power Generation Vol. 45, Issue 10, Pages: 16-22(2016)
- 作者机构：
  
  华北电力大学国家火力发电工程技术研究中心
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM611.31
- Published：2016
- 稿件说明：
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FU Zhongguang, WANG Xiaonan, LU Ke, et al. Influence of preheating temperature of nature gas on performance of gas-stem combined cycle[J]. Thermal power generation, 2016, 45(10): 16-22.
DOI：

FU Zhongguang, WANG Xiaonan, LU Ke, et al. Influence of preheating temperature of nature gas on performance of gas-stem combined cycle[J]. Thermal power generation, 2016, 45(10): 16-22. DOI：

摘要

以西门子V94.3燃气-蒸汽联合循环系统为例

采用Aspen Plus软件对该系统投运性能加热器后燃气预热温度变化对联合循环性能的影响进行了模拟计算。结果表明:投运性能加热器预热天然气后

燃气轮机(燃机)效率提升了0.15%

联合循环效率上升了0.06%

排烟温度下降了1.98℃;并且随着燃气预热温度的提高

燃机效率和联合循环效率上升

联合循环排烟温度下降。

Abstract

Gas preheating is an important way to improve cycle efficiency and maintain stable combustion.In this paper

the Simens V94.3gas-stem combined cycle system was simulated to analyze the influence of gas preheating temperature on performance of the combined cycle after the performance heater was installed

by using the Aspen Plus software.The results show that

the application of the performance heater can increase the gas turbine efficiency by 0.15%and the combined cycle efficiency by 0.06%

and reduce the exhaust temperature by 1.98 ℃.Moreover

as the gas preheating temperature rises

the efficiency of the gas turbine and the combined cycle grows

and the exhaust temperature drops.

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