Analysis of Fuel Injection Nozzle for Better Performance Aero Engines

References

[1] GEOMETRIC MODELS

[2] Figure: 7. 2D drawing of the nozzle

[3] Figure:8. Nozzle view

[4] Figure: 9. Nozzle body

[5] Figure: 10. Nozzle pin.

[6] MESHING:

[7] The Figure shown is the meshed model of rigid flange coupling in the ANSYS analysis for the static structural process. To analyze, the FEM triangular type of mesh is used for the rigid flange coupling in the ANSYS environment.

[8] The number of elements used in this meshing is 71441and the number of nodes is 122228.In this process regular type of meshing is done to analyze the process.

[9] Using the working condition of the coupling a relative rotational movement between the shafts comes into picture consequently.

[10] The determination of the shear stress along the contact region is essential. So, the model is meshed and then analyzed to get the detail and authentic result of the stresses of the contact region.

[11] Figure: 11. Droplet nozzle top view

[12] Figure: 12. Heavy flow multi-hole spray flash meshing model

[13] Figure: 13: Spray flash droplet initial view.

[14] Figure: 14: Spray flash droplet meshed state.

[15] RESULTS

[16] Nozzles are available a selection of shapes and sizes depending on the mission of the Aero engines, this is very important for the understanding of the performance characteristics of rocket. Convergent divergent nozzle is the maximum commonly used nozzle due to the fact that in the usage of it the propellant can be heated in combustion chamber. In this assignment the nozzle converting the exceptional nozzle parameters and one-of-a-kind fluids at exceptional velocities.

[17] Injection Rate Measurement:

[18] The realized injection rate is one of the keys enter parameters for spray and typical combustion simulation. For the investigated multi-layer nozzles, where the nozzle holes are arranged on an top and a lower row, the general injection rate isn't always enough to explain the nozzle behavior as it can't be assumed that the injection charge is similar for holes of the upper and lower row. Especially for nozzle standards with various hollow-diameters for higher and decrease row and throughout the needle beginning segment a widespread difference in injection fee may be anticipated. In order to research the effect of multi-layer nozzle ideas on spray propagation, the decrease chamber of the injection price size device is connected to an injection rate analyzer with excessive resolution information logging talents and a precise fuel mass size. A contrast of injected gas mass via higher and lower nozzle layer.

[19] Fatigue analysis:

[20] The fatigue phenomenon shows itself in the form of cracks developing at particular locations in the structure. Cracks can appear in diverse types of structures such as: planes, boats, bridges, frames, cranes, overhead cranes, machines parts, turbines, reactors vessels, canal lock doors, offshore platforms, transmission towers, pylons, masts and chimneys the fatigue life of a member or of a structural detail subjected to repeated cyclic loadings is defined as the number of stress cycles it can stand before failure. Depending upon the member or structural detail geometry, its fabrication or the material used, four main parameters can influence the fatigue strength.

[21] Figure: 15. Final view of aero engine nozzle

[22] Figure: 16. Vonmisses stress

[23] Figure: 17. Shear strain

[24] Figure: 18. Equivalent elastic strain

[25] Figure: 19. Counter of mass friction.

[26] Figure: 20. Mass friction pollutant view

[27] Figure: 21. Counter of mass friction 2

[28] Table 4.1 fuel injection aero engine nozzle analysis different variations

[29] Parameters

[30] Maximum

[31] Minimum

[32] total deformation

[33] 8.800e+003

[34] 7.700e+003

[35] von-mises stress

[36] 6.500e+003

[37] 5.700e+003

[38] shear stress

[39] 3.500e+001

[40] 2.500e+001

[41] Equivalent elastic

[42] strain

[43] 1.200e+002

[44] 7.000e+001

[45] Graph: 1. Aero engine nozzle analysis different variations

[46] CONCLUSION

[47] The fuel injector without delay injects gas into the direct fuel injection device. The injector is a very complicated component, and big research has been carried out to improve it. In my work indicating the development of fuel injector device to lessen chocking trouble that's generally take place in bio diesel engine. The injection nozzles and their respective nozzle holders are vitally vital additives located between the in-line injection pump and the diesel engine, its features are as metering the injection of gas, control of the gas, defining the fee- of-discharge curve, Sealing-off in opposition to the combustion, chamber By observing the CFD analysis of diesel engine nozzle the stress, velocity, heat switch price and mass waft fee values are will increase through increasing the inlet velocities and lowering the nozzle dia. So, it could be concluded the aero engine nozzle efficiency have been more even as the nozzle dia. Decreases. Upgrades inside the fuel injection structures of internal combustion engines can substantially lessen the emission of harmful pollution. The fuel injection machine produces the spray, which directly affects the combustion of the gasoline, which in turn determines the production of pollution. But, the information of this causal relationship remains unclear. The goal of this project is to understand the flow inside fuel injector nozzles and the implications for the downstream spray.

[48] REFERENCES

[49] Z. Beefing, A.M. Gomes (2000) Modeling Superheated Fuel Sprays and Vaporizations. Diary of Engine Research, Vol. 1, No. 4, pp. 321-336,

[50] L. Allocca, G. Vijaya Kumar Reddy (2012), “Impact of Fuel Injection stress on performance of Single Cylinder Diesel Engine at one-of-a-kind intake Manifold tendencies”. International Journal of Engineering and Innovative Technology, Vol. 2(4), pp 20-28.

[51] Kasianantham Nanthagopal (2011), “Effect of the injection pressure on the internal flow characteristics for diethyl and dimethyl ether and diesel fuel injectors.”Center for Excellence in Automotive Technology, Vol. 15(4), pp 1123-1130.

[52] Chang Sik Lee (2008),” Effect of cavitation in nozzle orifice on the diesel fuel atomization characteristics, International Journal of Heat and Fluid Flow”,Vol. 29, pp 1001–1009.,

[53] Zhou, D. M. Ziang, Z. H. Huang (2000), “Study on the performance and emission of a compression ignition engine fuelled with dimethyl ether,” Proceedings of the institution of mechanical engineers Part D Journal of Automobile Engineering, Vol. 214, pp 101-106.

[54] Karan Kumar, Subrata Kr. Ghosh, (2013)” Mine ventilation in a board and pillar mines using CFD”, International Journal of Emerging Technology and Advanced Engineering, Vol. 3(3), ICERTSD 2013, pp 389-393

[55] Wigley G, Pitcher G, Nuglisch H, Helie (2008) Fuel Spray Formation and Gasoline Direct Injection AVL eighth. Worldwide Symposium on Combustion Diagnostics, BadenBaden, Germany, 2008

[56] Xu M, Zhang Y, Zeng W, Zhang G, Zhang M (2013) Flash Boiling: Easy and Better Way to Generate Ideal Sprays than the High Injection Pressure. SAE International Journal of Fuels and Lubricants 6:1:137-148

[57] Zhang, G., M. XU, Y. Zhang (2011) Quantitative Measurements of Liquid and Vapor Distributions in Flash Boiling Fuel Sprays utilizing Planar Laser Induced Exciplex Technique. SAE specialized paper 2011-01-1879, 2011

[58] Mittal, M., D.S. Hung, G. Zhu, and H. (2011) Schock, Fuel spray visualization and its impingement analysis on in-cylinder surfaces in a direct-injection spark-ignition engine Journal of Visualization, 14(2): 149-160, 2011

[59] Zeng, W., M. Xu, M. Zhang, (2012) Macroscopic characteristics for direct-injection multi-hole sprays using dimensionless analysis Experimental Thermal and Fluid Science, 40(0): 81- 92, 2012.

[60] Zhang, G., M. Xu, Y. Zhang, (2010) Cleary, Macroscopic Characterization of Flash Boiling

[61] Sprays using Laser Induced Exciplex Fluorescence from a Multi-Hole DI Injector. The 14th Annual Conference on Liquid Atomization and Spray Systems- Asia (ILASS-Asia 2010), 2010

[62] Chen, H., M. Xu, G. Zhang, (2010) Investigation of Ethanol Spray from Different DI Injectors by Using Two-Dimensional Laser Induced Fluorescence at Potential Cold-Start Condition, ASME Conference Proceedings.2010, p391-403.

@article{1702812,
      author = {S. Mahaboob Khan, P. Vinod Kumar Reddy, K. Vasu, P. Rama Kishore Reddy; K. Dinesh Kumar, G. Hanumantha Reddy; V. V. Devendra Reddy},
      title = {Analysis of Fuel Injection Nozzle for Better Performance Aero Engines},
      journal = {Iconic Research And Engineering Journals},
      year = {2021},
      volume = {5},
      number = {1},
      pages = {40-49},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1702812.pdf},
      abstract = {Fuel injection is the most important part of the fuel injection system that is the coronary heart of the diesel engine. The fuel injection works under the very terrible conditions, exchange liquid load, mechanical load and thermal load included, over extended time period. The fuel injector is playing essential function in engine combustion. So in this fuel injector nozzle is spraying the gas into combustion at high pressure bar. Right here we are making small modifications within the nozzle The diameter of nozzle is having very small in micro stage holes so right here we are converting these micro stage holes into Nano degree holes in order that the overall performance within the injection of fuel into engine might be differ from the micro holes, so that the fuel performance and NOx reduction from the engine could be decreased And the fuel injector is taken from the dual cylinder engine of a tractor, so on this we more often than not want the nozzle and its dimensions and the holes dimensions are referred to for designing the nozzle. The fuel injection nozzle comes under the function of the high pressure of the fuel even as the fuel injector is injecting, even as the pressure of the fuel within the fuel injection may be very low when the injection is give up. The liquid load the fuel injection receives is trade. The needle valve moves upon the valve seat periodicity while the injector is running generally which means the mechanical load the fuel injection endures is variable Under long term exposure to the high-temperature fuel inside the cylinder, the temperature of the external surface of the gas injection continually reaches up to 200-300 now and again even higher. It is obviously significant to analysis the fatigue strength of the fuel injection running under the coupling of quite a few complicated and alternating loads. In this project we can create a fuel injector model in CATIAV5 software premium 2014 with wide spread dimensions. And we can carry out a fatigue analysis at the fuel injector model in CATIAV5 software by this we can recognize the failure criteria of the version against the excessive electricity loads. Failure standards are being calculated according to the obtained factor of safety.},
      month = {July},
  }