Characteristics of fuel distribution processes in spray and nishe systems

Authors

  • Михаил Загретдинович Абдулин National Technical University of Ukraine “Kyiv Polytechnic Institute”, Prospect, 37, Kyiv, Ukraine, 03056, Ukraine
  • Александр Анатольевич Серый National Technical University of Ukraine “Kyiv Polytechnic Institute”, Prospect, 37, Kyiv, Ukraine, 03056, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2013.16447

Keywords:

spray and niche system, fuel distribution, sprays, computer modeling

Abstract

The paper deals with determining the stabilization characteristics of spray and niche-type burner units of using various gas feed schemes. Implementation and operational experience has shown the effectiveness of the spray and niche technology and is suggesting it as universal one. Today many fire engineering facilities, which consume natural gas, have been modernized based on SNT. Power engineering, metallurgy and food industry facilities are equipped with the new technology. Boilers yielded savings of boilers 5 to 15%, and in metallurgy they were up to 50%. 

Today, an important issue linked to low-cost modernization is identifying the possibilities of increasing the capacity of individual burner units, whilst retaining the main advantages of the spray and niche technology. 

The research considers the regularities of hydrodynamics and mass exchange in the spray and niche system with several rows of gas supply orifices. The largest diameter was in the first air flow row for organizing efficient fuel distribution in terms of oxidant volume. The relative spacing between orifices was the same in all rows. 

The paper gives the profiles of turbulence intensity and the line axial velocity components for the three gas supply schemes. Also, the paper gives the results of numerical analysis of mass exchange between the main flow and the backflow zone in a niche for all gas distribution schemes. The gas pressure differential in the SNT air path was defined for all gas feed options considered. Conclusions were made based on research results.

Author Biographies

Михаил Загретдинович Абдулин, National Technical University of Ukraine “Kyiv Polytechnic Institute”, Prospect, 37, Kyiv, Ukraine, 03056

Thermal ingeneering department

Александр Анатольевич Серый, National Technical University of Ukraine “Kyiv Polytechnic Institute”, Prospect, 37, Kyiv, Ukraine, 03056

Thermal ingeneering department

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Published

2013-08-17

How to Cite

Абдулин, М. З., & Серый, А. А. (2013). Characteristics of fuel distribution processes in spray and nishe systems. Eastern-European Journal of Enterprise Technologies, 4(8(64), 22–25. https://doi.org/10.15587/1729-4061.2013.16447

Issue

Vol. 4 No. 8(64) (2013): Energy saving. Energy-saving technologies and equipment. Materials science

Section

Energy-saving technologies and equipment

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Copyright (c) 2014 Михаил Загретдинович Абдулин, Александр Анатольевич Серый

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