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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]. 热力发电, 2025,(11):12-23.
郑玮琳, 代佳奇, 宋雪松. Research on comprehensive performance of combustion chamber of blast-furnace-gas-fired gas turbine[J]. Thermal Power Generation, 2025, (11): 12-23.
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]. 热力发电, 2025,(11):12-23. DOI: 10.19666/j.rlfd.202502023.
郑玮琳, 代佳奇, 宋雪松. Research on comprehensive performance of combustion chamber of blast-furnace-gas-fired gas turbine[J]. Thermal Power Generation, 2025, (11): 12-23. DOI: 10.19666/j.rlfd.202502023.
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_2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_x排放量从7.56×10~(–6) mol/m~3降至1.49×10~(–6) mol/m~3
CO排放量从993.98×10~(–6) mol/m~3降至421.95×10~(–6) mol/m~3,燃烧效率由98.48%提升至99.14%;随着燃气中CO_2与N_2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_x排放量从3.18×10~(–6) mol/m~3降至1.39×10~(–6) mol/m~3
CO排放量从633.73×10~(–6) mol/m~3升至832.45×10~(–6) mol/m~3,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_x排放量从0.29×10~(–6) mol/m~3增至18.66×10~(–6) mol/m~3
CO排放量从459.25×10~(–6) mol/m~3增至1 030.61×10~(–6) mol/m~3,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~3的高炉煤气,该拟合方程R~2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。
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