Research on comprehensive performance of combustion chamber of blast-furnace-gas-fired gas turbine

郑玮琳; 代佳奇; 宋雪松

doi:10.19666/j.rlfd.202502023

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Research on comprehensive performance of combustion chamber of blast-furnace-gas-fired gas turbine

Thermal Power Generation Vol. 54, Issue 11, Pages: 12-23(2025)

更新时间：2026-08-11

- Research on comprehensive performance of combustion chamber of blast-furnace-gas-fired gas turbine
- 作者机构：
  
  沈阳航空航天大学航空发动机学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202502023
  CLC： TF526.4;TK471
- Published：2025
- 稿件说明：
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[1]郑玮琳,代佳奇,宋雪松.高炉煤气燃气轮机燃烧室综合性能研究[J],2025,54(11):12-23.
[1]郑玮琳,代佳奇,宋雪松.高炉煤气燃气轮机燃烧室综合性能研究[J],2025,54(11):12-23. DOI： 10.19666/j.rlfd.202502023.

DOI：10.19666/j.rlfd.202502023.

摘要

根据高炉煤气组分及其热值波动较大的特点，系统研究了某型燃气轮机燃烧室的燃料适应性。通过耦合详细化学反应机理数值模拟方法，获得了不同热值和组分工况下燃气轮机燃烧室的综合性能特征，重点分析了温度场和组分流场分布及其影响机制。研究结果表明：在相同初始工况和燃料热值条件下，随着燃气中H

与CO体积分数比增加，燃烧室出口平均温度从1 769.35 K降至1 710.11 K、温度分布系数从0.044降至0.016，出口NO

排放量从7.56×10

–6

mol/m

降至1.49×10

–6

mol/m

CO排放量从993.98×10

–6

mol/m

降至421.95×10

–6

mol/m

，燃烧效率由98.48%提升至99.14%；随着燃气中CO

与N

体积分数比的增加，燃烧室出口平均温度从1 739.30 K降至1 694.99 K，温度分布系数在0.032～0.045波动，出口NO

排放量从3.18×10

–6

mol/m

降至1.39×10

–6

mol/m

CO排放量从633.73×10

–6

mol/m

升至832.45×10

–6

mol/m

，燃烧效率从98.89%降至98.56%。此外，随着燃料热值增加，燃烧室出口平均温度显著升高，从1 587.30 K增至1 862.39 K，温度分布系数呈下降趋势，NO

排放量从0.29×10

–6

mol/m

增至18.66×10

–6

mol/m

CO排放量从459.25×10

–6

mol/m

增至1 030.61×10

–6

mol/m

，燃烧效率从99.14%降至98.33%。最后选用20组数据进行非线性曲面拟合，对于热值范围3～5 MJ/m

的高炉煤气，该拟合方程R

均大于0.90，可

为燃气轮机燃烧室的低热值燃料调控提供理论依据。

Abstract

The fuel adaptability of a certain type of gas turbine combustion chamber is systematically investigated in response to the characteristics of blast furnace gas composition and its significant fluctuations in its calorific value. By coupling the detailed chemical reaction mechanism with numerical simulation methods

the comprehensive performance characteristics of the gas turbine combustion chamber under different calorific values and composition conditions were obtained

with a focus on analyzing the distribution of temperature and concentration fields and their influencing mechanisms. The results show that

under the same initial conditions and fuel calorific value

as the volume fraction ratio of H

to CO in the gas increases

the average temperature at the combustion chamber outlet decreases from 1 769.35 K to 1 710.11 K

the temperature distribution coefficient decreases from 0.044 to 0.016

the NO

emission concentration at the outlet decreases from 7.56×10

–6

mol/m

to 1.49×10

–6

mol/m

and the CO emission concentration decreases from 993.98×10

–6

mol/m

to 421.95×10

–6

mol/m

and the combustion efficiency increases from 98.48% to 99.14%. As the volume fraction ratio of CO

to N

in the gas increases

the average temperature at the combustion chamber outlet decreases from 1 739.30 K to 1 694.99 K

the temperature distribution coefficient fluctuates in the range of 0.032～0.045

the NO

emission concentration at the outlet decreases from 3.18×10

–6

mol/m

to 1.39×10

–6

mol/m

the CO emission concentration increases from 633.73×10

–6

mol/m

to 832.45×10

–6

mol/m

and the combustion efficiency decreases from 98.89% to 98.56%. In addition

as the fuel calorific value increases

the aver

age temperature at the combustion chamber outlet significantly increases from 1 587.30 K to 1 862.39 K

the temperature distribution coefficient shows a downward trend

the NO

emission concentration increases from 0.29×10

–6

mol/m

to 18.66×10

–6

mol/m

the CO emission concentration increases from 459.25×10

–6

mol/m

to 1 030.61×10

–6

mol/m

and the combustion efficiency decreases from 99.14% to 98.33%. Finally

20 sets of data are selected for nonlinear surface fitting. For the blast furnace gas with a heat value range of 3～5 MJ/m

all the the R

values of the fitting formula are greater than 0.90

indicating this formula can provide a theoretical basis for the control of low-heat-value fuels in gas turbine combustion chambers.

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