Design and Analysis of a Formula SAE Car Engine Restrictor

  • Authors

    • Amir Radzi Ab. Ghani
    • M. Fitri Hassan
    • Ramzyzan Ramly
    2018-11-30
    https://doi.org/10.14419/ijet.v7i4.25.22421
  • Formula SAE, engine restrictor, computational fluid dynamics (CFD)

  • Abstract

    Formula Society of Automotive Engineers (SAE) is a world renowned automotive design competition that requires engineering students to design and test a single seater race car. The car utilizes a four stroke motorcycle engine with a maximum displacement of 781 cc. The rules require the engine to be restricted using a 20 mm diameter air intake. The challenge is to design an engine restrictor that enables the engine to operate efficiently with minimal power loss despite the significant reduction of volumetric efficiency. The engine restrictor consists of nozzle, plenum (air-box) and runner. CATIA V5 is used to design the restrictor system and ANSYS CFX was used to analyse the air flow. Several nozzle and plenum designs were simulated to determine the best design. It was discovered that the converging nozzle angle, position of restrictor hole inlet and plenum shapes have significant effect on the performance of the restrictor system. Nozzle with converging angle of 18o and inlet hole position of 59.5 mm gave the lowest pressure difference of 8.698 kPa. Engine restrictor Design 3 gave the lowest overall pressure difference of 7.73 kPa

     

  • References

    1. [1] 2017-18 Formula SAE® Rules –September 13, 2017

      [2] Han-chi H & Hong-Wu H, Yi-jie B (2012), Optimization of intake and exhaust system for FSAE car based on orthogonal array testing. International Journal of Engineering and Technology, 2(3), 392-396.

      [3] https://www.carbon3d.com/stories/hornet-racing-csu-sacramento-improves-formula-sae-engine-performance-csu-sacramento/

      [4] Raj S, Singh AK, Srivastava T & Vibhanshu V (2016), Analysis of air intake for Formula SAE vehicle. 5th International Symposium on “Fusion of Science & Technology, 346, 457-460.

      [5] Ravindra VD, Nikhil M & Yeshodara B (2015), Design and optimisation of a FSAE restrictor with structured mesh. International Journal of Science and Research (IJSR), 4, 1995-1997.

      [6] Pranav SA (2014), Research and optimization of intake restrictor for Formula SAE car engine. International Journal of Scientific and Research Publications. 4, 1-5.

      [7] Arbaaz S (2017), Air flow optimization through an intake system for a single cylinder Formula Student race car. International Journal of Engineering Research & Technology, 6(1), 183-188.

      [8] Vichi G, Romani L, Ferrari L & Ferrara G (2015), Development of an engine variable geometry intake system system for Formula SAE application. Energy Procedia, 81, 930-941.

      [9] Shaughnessy EJ & Hotz N (2014), An induction design for restricted race engines. Master of Science in the Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA.

      [10] Sawant PM, Sawant SS, Gurav PN, Nivalkar PS & Waghmere (2018), Analysis of air intake for Formula Student race car. International Research Journal of Engineering and Technology, 5(4), 4254-4258.

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  • How to Cite

    Radzi Ab. Ghani, A., Fitri Hassan, M., & Ramly, R. (2018). Design and Analysis of a Formula SAE Car Engine Restrictor. International Journal of Engineering & Technology, 7(4.25), 181-184. https://doi.org/10.14419/ijet.v7i4.25.22421

    Received date: 2018-11-30

    Accepted date: 2018-11-30

    Published date: 2018-11-30