The effective utilization of low-grade energy sources generated from steel-making processes provides not only excellent opportunities for low cost power generation but also a significant means for the reduction of greenhouse gas emissions. In this paper, the work was carried out to study the static and dynamic combustion instabilities for gas turbine (GT) combustors burning low-calorific-value blast furnace gas (BFG). A burner was designed to stabilize the BFG flame with central pilot flames. A diagnostic system was set up to detect the characteristics of flame dynamics. In the experiments, the fuel ratio between the pilot and main burner, and the equivalence ratio of the main flame and the annular flow velocity were varied for the investigation of the combustion lean blowout (LBO) limits. The flame dynamics near LBO were investigated. The dynamic responses of the flame to flow perturbations were also measured. A network model was employed to study and validate the blowout mechanisms. The LBO limits were calculated and compared with experimental results for various equivalence ratios.
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March 2016
Research-Article
Investigations of the Stabilities of Piloted Flames Using Blast Furnace Gas
Chunyan Li,
Chunyan Li
Key Laboratory for Thermal Science
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
Search for other works by this author on:
Haojie Tang,
Haojie Tang
Key Laboratory for Thermal Science
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
Search for other works by this author on:
Liyue Jing,
Liyue Jing
Key Laboratory for Thermal Science
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
Search for other works by this author on:
Min Zhu
Min Zhu
Key Laboratory for Thermal Science
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
e-mail: zhumin@tsinghua.edu.cn
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
e-mail: zhumin@tsinghua.edu.cn
Search for other works by this author on:
Chunyan Li
Key Laboratory for Thermal Science
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
Haojie Tang
Key Laboratory for Thermal Science
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
Liyue Jing
Key Laboratory for Thermal Science
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
Min Zhu
Key Laboratory for Thermal Science
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
e-mail: zhumin@tsinghua.edu.cn
and Power Engineering,
Department of Thermal Engineering,
Tsinghua University,
Beijing 100084, China
e-mail: zhumin@tsinghua.edu.cn
1Present address: Dongfang Electric Corporation, Sichuan 610036, China.
2Corresponding author.
Contributed by the Combustion and Fuels Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received July 24, 2015; final manuscript received August 5, 2015; published online September 22, 2015. Editor: David Wisler.
J. Eng. Gas Turbines Power. Mar 2016, 138(3): 031505 (10 pages)
Published Online: September 22, 2015
Article history
Received:
July 24, 2015
Revised:
August 5, 2015
Citation
Li, C., Tang, H., Jing, L., and Zhu, M. (September 22, 2015). "Investigations of the Stabilities of Piloted Flames Using Blast Furnace Gas." ASME. J. Eng. Gas Turbines Power. March 2016; 138(3): 031505. https://doi.org/10.1115/1.4031348
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