Abstract
The injector location and orientation on the cylinder head of a direct injection spark ignition engine greatly influence the performance, combustion, and emission characteristics. As the cylinder head is the most crowded area, an in-cylinder investigation needs to be performed for the optimization of the spark plug and injector location. In this study, a gasoline direct injection (GDI) injector location was optimized for the upgradation of a port fuel injection (PFI) engine to direct injection engine. A computational fluid dynamics (CFD) tool of ANSYS Forte was used for the numerical simulation. The injector location was optimized based on the air-fuel homogeneity inside the combustion chamber at the time of ignition. A computational model was developed for the existing single-cylinder PFI research engine, and full-cycle simulation was performed for both motoring and combustion mode. An experimental analysis was performed and compared with the simulation results. It was found that the experimental in-cylinder pressure trace showed a good agreement with the simulation results. Prior to the numerical modeling, the GDI injector spray characterization was performed numerically and validated with the existing literature. The possible GDI injector locations were identified by diagnosing the cylinder head. The spray data was used at different possible locations and injected directly into the combustion chamber. The in-cylinder equivalence ratio at the time of ignition was presented for different injector locations and optimized based on the air-fuel homogeneity.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Zhao, F., Lai, M., Harrington, D.: Automotive spark-ignited direct-injection gasoline engines. Prog. Energy Combust. Sci. 25(5), 437–562 (1991)
Salim, W., Mahdi, A., Ismail, M., Abas, M., Botas, R., Rajoo, S.: Benefits of spark-ignition engine fuel-saving technologies under transient part load operations. J. Mech. Eng. Sci. 11(4), 3027–3037 (2017)
Tripathy, S., Sahoo, S., Srivastava, D.: Gasoline direct injection-challenges. In: Combustion for Power Generation and Transportation, 1st edn. Springer, Singapore (2017)
Park, C., Kim, S., Kim, H., Moriyoshi, Y.: Stratified lean combustion characteristics of a spray-guided combustion system in a gasoline direct injection engine. Energy 41(1), 401–407 (2012)
Koike, M., Saito, A., Tomoda, T., Yamamoto, Y.: Research and development of a new direct injection gasoline engine. SAE Trans. 109, 543–552 (2000)
Sevik, J., Pamminger, M., Wallner, T., Scarcelli, R., Boyer, B., Wooldridge, S., Hall, C. Miers, S.: Influence of injector location on part-load performance characteristics of natural gas direct-injection in a spark ignition engine. SAE Int. J. Eng. 9, 2262–2271 (2016)
Saw, O., Mallikarjuna, J.: Effect of spark plug and fuel injector location on mixture stratification in a GDI engine—a CFD analysis. In: IOP Conference Series: Materials Science and Engineering, p. 012025. IOP Publishing (2016)
Verma, I., Bish, E., Kuntz, M., Meeks, E. et al.: CFD modeling of spark ignited gasoline engines—Part 1: Modeling the engine under motored and premixed-charge combustion mode. SAE Technical Paper 2016-01-0591 (2016)
Han, Z., Reitz, R.: Turbulence modeling of internal combustion engines using RNG k-ε models. Combust. Sci. Technol. 106(4–6), 267–295 (1995)
Beale, J., Reitz, R.: Modeling spray atomization with the Kelvin-Helmholtz/Rayleigh-Taylor hybrid model. At. Sprays 9(6), 623–650 (1999)
Reitz, R.: Modeling atomization processes in high-pressure vaporizing sprays. At. Spray Technol. 3(4), 309–337 (1987)
Abani, N., Reitz, R.: Unsteady turbulent round jets and vortex motion. Phys. Fluids 19(12), 125102 (2007)
Ra, Y., Reitz, R.D.: A vaporization model for discrete multi-component fuel sprays. Int. J. Multiph. Flow 35, 101–117 (2009)
Li, Z., He, B., Zhao, H.: Application of a hybrid breakup model for the spray simulation of a multi-hole injector used for a DISI gasoline engine. Appl. Therm. Eng. 65(1–2), 282–292 (2014)
Tripathy, S., Sahoo, S., Srivastava, D.: Numerical investigation on the effect of advanced breakup model on spray simulation of a multi-hole injector. In: ASME 2018 Internal Combustion Engine Division Fall Technical Conference, p. V002T06A013. American Society of Mechanical Engineers, USA (2018)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Tripathy, S., Sahoo, S., Srivastava, D.K. (2021). Optimization of Injector Location on the Cylinder Head in a Direct Injection Spark Ignition Engine. In: Bose, M., Modi, A. (eds) Proceedings of the 7th International Conference on Advances in Energy Research. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-15-5955-6_80
Download citation
DOI: https://doi.org/10.1007/978-981-15-5955-6_80
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-5954-9
Online ISBN: 978-981-15-5955-6
eBook Packages: EnergyEnergy (R0)