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The effect the design solutions adopted for a pilot vortex burner with central admission of medium have on setting up the conditions for stable combustion of air-fuel mixture

  • Steam Boilers, Power-Plant Fuel, Burner Arrangements, and Auxiliary Boiler Equipment
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Abstract

The effect the design and operating parameters of a pilot vortex burner have on the swirl jet formation and on the jet characteristics is studied. The flow characteristics were studied by mathematically modeling the flow using the ANSYS CFX software package. The performed investigations made it possible to determine the extent to which the swirl parameter n, the ratios of channel diameters m and flow rates of medium in the channels in case of using a two-channel swirl burner design, and the constriction ratio K cnst influence the flow aerodynamic pattern, including the back flow zone and its characteristics. The region of m and n values at which the aerodynamic conditions necessary for maintaining stable combustion are set up is determined. Matters concerned with performance efficiency of the axial swirling apparatus are considered. A correlation for determining the flow swirling loss factor is presented. It is shown that pressure loss in an annular channel with a swirling device depends not only on the blade setting angle, but also on the ratio of annular channel diameters.

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References

  1. A. P. Bordukov, V. I. Popov, V. A. Faleev, and T. S. Yusupov, “Using mechanically activated micropulverized coals in power engineering,” Polzunov Vestnik, No. 1, 93–98 (2010).

    Google Scholar 

  2. V. A. Dvoinishnikov and D. A. Khokhlov, “Numerical investigation of a pulverized-coal startup vortex burner,” Therm. Eng. 60(6), 390 (2013), DOI:10.1134/S0040363413060039.

    Article  Google Scholar 

  3. V. A. Dvoinishnikov, A. V. Larkov, and D. A. Khokhlov, “The influence of pulverized coal characteristics of the startup burner performance efficiency,” Energetik, No. 8, 47–51 (2013).

    Google Scholar 

  4. I. V. Ryabokopylenko, Generation of Asymmetric Vortex Flames in the Gas-and-Oil Burners of Steam Boilers, Candidate’s Dissertation in Technical Sciences (KhPI, Kharkiv, 1984).

    Google Scholar 

  5. OST (Branch Standard) 108.030.26-78: Pulverized-Coal and Coal/Gas-Fired Vortex Burners, and Their Arrangement with Furnaces. Design Methods.

  6. E. Kh. Verbovetskii and N. G. Zhmerik, Methodical Guidelines for Designing Furnace Devices (VTI-TsKTI, St. Petersburg, 1996) [in Russian].

    Google Scholar 

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Correspondence to D. A. Khokhlov.

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Original Russian Text © V.A. Dvoinishnikov, D.A. Khokhlov, 2015, published in Teploenergetika.

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Dvoinishnikov, V.A., Khokhlov, D.A. The effect the design solutions adopted for a pilot vortex burner with central admission of medium have on setting up the conditions for stable combustion of air-fuel mixture. Therm. Eng. 62, 278–285 (2015). https://doi.org/10.1134/S0040601515040011

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  • DOI: https://doi.org/10.1134/S0040601515040011

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