Relief swirlers for gas engine-compressor units

Eduard A. Petrovsky Sc.D., professor Department of Oil and Gas Technological Machines and Equipment FGAOU VO Siberian Federal University, Oil and Gas Institute, Krasnoyarsk petrovsky_quality@mail.ru
Kirill A. Bashmur senior lecturer Department of Oil and Gas Technological Machines and Equipment FGAOU VO Siberian Federal University, Oil and Gas Institute, Krasnoyarsk kbashmur@sfu-kras.ru
Yuliya A. Geraschenko graduate student Department of Oil and Gas Technological Machines and Equipment FGAOU VO Siberian Federal University, Oil and Gas Institute, Krasnoyarsk geraschenko.iul@yandex.ru
Vadim A. Makolov graduate student Department of Oil and Gas Technological Machines and Equipment FGAOU VO Siberian Federal University, Oil and Gas Institute, Krasnoyarsk vadik0597@yandex.ru
Yuliya N. Shadchina graduate student Department of Oil and Gas Technological Machines and Equipment FGAOU VO Siberian Federal University, Oil and Gas Institute, Krasnoyarsk ulia.sh72@yandex.ru
DOI: 10.24411/2076-6785-2019-10042

A gas flow swirler is provided in the combustion chamber of piston and turbine gas engines for compressor installations. Unlike standard diffuser flow swirlers that have highlighted drawbacks, the article proposes and investigates with the help of the SolidWorks Flow Simulation program module of a hydrodynamic modeling direct-flow swirler with a helical relief. It is shown that the relief swirl can stabilize and mix the flow no less effectively, and probably better than a diffuser. From the point of view of the effectiveness of the flow swirling, various profiles of the relief of the swirler are considered, with a triangular profile highlighted.

 

Materials and methods

A hypothesis concerning the efficiency of using a direct-flow swirler as a flow stabilizer is proposed. Simulation flow modeling in the direct-flow stabilizer is carried out. The simulation was carried out with the help of the SolidWorks Flow Simulation program module for different geometric profiles of the relief swirler. In terms of flow swirling the most effective flow section of the direct-flow swirler has been revealed.

 

Results

Using the gas flow simulation in Flow Simulation Module the authors of the article confirmed the hypothesis that the direct-flow swirlers can be effectively used to stabilize the flow in gas engines since the flow swirling parameters are practically the same as traditionally used diffusers.

Various cross section profiles of the direct-flow stabilizers were analyzed as well. It was revealed that it is advisable to use the triangular profile stabilizer for better flow mixing as it possesses the best turbulence indicators.

 

Conclusions

Different cross section profiles devices were obtained in the SolidWorks software complex. Using the gas flow simulation in Flow Simulation Module the authors of the article confirmed the hypothesis that the direct-flow swirlers can be effectively used to stabilize the flow in gas engines since the flow swirling parameters are practically the same as traditionally used diffusers.

Various cross section profiles of the direct-flow stabilizers were analyzed. The following maximum parameters of the profiles swirling: triangular 34000 1/s; trapezoidal 9600 1/s; semicircular 13100 1/s; sinusoidal 13800 1/s; rectangular 15200 1/s have been obtained. It was revealed that it is advisable to use the triangular profile stabilizer for better flow mixing as it possesses the best turbulence indicators.

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