Study of steam addition to reduce clean emissions from combustion of gaseous fuel in a low-power atmospheric burner

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Abstract

The efficiency of steam addition is studied in relation to the problem of reducing nitrogen and carbon oxide emissions for low-power atmospheric burners using the example of gaseous fuel combustion. Thermal and environmental characteristics of gaseous fuel combustion are experimentally determined when it is supplied to the base of a high-speed jet of superheated steam as a method of low-emission combustion. During the experiment, the completeness of fuel combustion, gas analysis of exhaust gases, and average temperature along the flame symmetry axis are measured. The results demonstrate that the supply of superheated steam can significantly reduce the concentration of harmful substances in combustion products (NOx and CO by 1.6 and 1.8 times) compared to blowing heated air, while maintaining high completeness of fuel combustion due to the reaction of hydrocarbon fuel with steam.

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About the authors

Maria A. Mukhina

S. S. Katuteladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences

Author for correspondence.
Email: mary-andr@yandex.ru

Research Engineer

Russian Federation, Novosibirsk

Evgeny P. Kopyev

S. S. Katuteladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences

Email: kopyeve@itp.nsc.ru

Candidate of Sciences in Technology, Head of the Laboratory

Russian Federation, Novosibirsk

Ivan S. Sadkin

S. S. Katuteladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences

Email: sadkinvanya@mail.ru

Research Engineer

Russian Federation, Novosibirsk

Evgeny Yu. Shadrin

S. S. Katuteladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences

Email: evgen_zavita@mail.ru

Candidate of Sciences in Physics and Mathematics, Junior Researcher

Russian Federation, Novosibirsk

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Supplementary files

Supplementary Files
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1. JATS XML
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2. Fig. 1. Diagram of the experimental setup: 1 — gas line; 2 — water supply; 3 — steam; 4 — data line; and 5 — control line

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3. Fig. 2. Diagram of the burner device

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4. Fig. 3. Maps of oxygen (a) and carbon monoxide (b) content in combustion products: left column — heated air supply; and right column — superheated steam supply

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5. Fig. 4. Photographs of the flame of the burner device at various operating parameters (see the table)

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6. Fig. 5. Profiles of the average flame temperature along the vertical axis of the burner nozzle for modes when supplying a jet of heated air at constant atomizer flow rate (a) and at constant fuel consumption (b): 1 — A10P8; 2 — A10P9; 3 — A10P10; 4 — A10P11; 5 — A8P9; and 6 — A10P9

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7. Fig. 6. Profiles of the average flame temperature along the vertical axis of the burner nozzle for modes when supplying a jet of superheated water steam at constant atomizer flow rate (a) and at constant fuel consumption (b): 1 — S8P8; 2 — S8P9; 3 — S8P10; 4 — S8P11; 5 — S6P9; 6 — S8P9; and 7 — S10P9

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8. Fig. 7. Maps of the content of nitrogen oxides in combustion products: (a) heated air supply; and (b) superheated steam supply

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9. Fig. 8. Concentration profiles of gas components in the flame along the vertical axis of the burner nozzle for modes when supplying a jet of heated air: 1 — A8P9; 2 — A10P8; 3 — A10P9; 4 — A10P10; and 5 — A10P11

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10. Fig. 9. Concentration profiles of gas components in the flame along the vertical axis of the burner nozzle for modes when supplying a jet of superheated water steam: 1 — S6P9; 2 — S8P8; 3 — S8P9; 4 — S8P10; 5 — S8P11; and 6 — S10P9

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