IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i7p1682-d340811.html
   My bibliography  Save this article

Effect of the Intake Valve Lift and Closing Angle on Part Load Efficiency of a Spark Ignition Engine

Author

Listed:
  • Michelangelo Balmelli

    (Automotive Powertrain Technologies Laboratory, Empa Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland)

  • Norbert Zsiga

    (Automotive Powertrain Technologies Laboratory, Empa Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland)

  • Laura Merotto

    (Automotive Powertrain Technologies Laboratory, Empa Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland)

  • Patrik Soltic

    (Automotive Powertrain Technologies Laboratory, Empa Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland)

Abstract

This study provides an experimental evaluation of the effectiveness of Miller cycles with various combinations of lift and intake valve closing angle for a passenger car engine with premixed combustion in naturally aspirated operation. A fully variable electro-hydraulic valve train provided different valve lift profiles. Six load points, from 1.5 up to 5 bar brake mean effective pressure at a constant engine speed of 2000 min −1 , were tested with 6 different intake valve lift/intake valve closing angle combinations. The intake valve closing angle was always set before bottom dead center to achieve the desired load with unthrottled operations. Experimental comparison with throttled operation outlines an indicated efficiency increase of up to 10% using high intake lift with early valve closing angle. Furthermore, this analysis outlines the influences that early intake valve closing angle has on fuel energy disposition. Longer combustion duration occurs using early intake valve closing angle because of turbulence dissipation effects, leading to slight reductions in the heat-to-work efficiency. However, overall pressure and temperature levels decrease and consequently heat losses and losses due to incomplete combustion decrease as well. Overall, we found that combustion deterioration is compensated/mitigated by the reduction of the heat losses so that reductions of pumping losses using early intake valve closing can be fully exploited to increase the engine’s efficiency.

Suggested Citation

  • Michelangelo Balmelli & Norbert Zsiga & Laura Merotto & Patrik Soltic, 2020. "Effect of the Intake Valve Lift and Closing Angle on Part Load Efficiency of a Spark Ignition Engine," Energies, MDPI, vol. 13(7), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:7:p:1682-:d:340811
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/7/1682/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/7/1682/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Chiang, Chia-Jui & Yang, Jing-Long & Lan, Shao-Ya & Shei, Tsung-Wei & Chiang, Wen-Shu & Chen, Bo-Liang, 2013. "Dynamic modeling of a SI/HCCI free-piston engine generator with electric mechanical valves," Applied Energy, Elsevier, vol. 102(C), pages 336-346.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Frederico de Oliveira Assuncao & Luiz Eduardo Borges-da-Silva & Helcio Francisco Villa-Nova & Erik Leandro Bonaldi & Levy Ely Lacerda Oliveira & Germano Lambert-Torres & Carlos Eduardo Teixeira & Wils, 2021. "Reduced Scale Laboratory for Training and Research in Condition-Based Maintenance Strategies for Combustion Engine Power Plants and a Novel Method for Monitoring of Inlet and Exhaust Valves," Energies, MDPI, vol. 14(19), pages 1-23, October.
    2. Meng, Xianglong & Xie, Fangxi & Li, Xiaona & Han, Linghai & Duan, Jiaquan & Gong, Yanfeng & Zhou, You, 2024. "Study on the effects of intake valve timing and lift on the combustion and emission performance of ethanol, N-butanol, and gasoline engine under stoichiometric combustion and lean burn conditions," Energy, Elsevier, vol. 300(C).
    3. Andyn Omanovic & Norbert Zsiga & Patrik Soltic & Christopher Onder, 2021. "Increased Internal Combustion Engine Efficiency with Optimized Valve Timings in Extended Stroke Operation," Energies, MDPI, vol. 14(10), pages 1-24, May.
    4. Simone Ferrari & Riccardo Rossi & Annalisa Di Bernardino, 2022. "A Review of Laboratory and Numerical Techniques to Simulate Turbulent Flows," Energies, MDPI, vol. 15(20), pages 1-56, October.
    5. Andyn Omanovic & Norbert Zsiga & Patrik Soltic & Christopher Onder, 2021. "Optimal Degree of Hybridization for Spark-Ignited Engines with Optional Variable Valve Timings," Energies, MDPI, vol. 14(23), pages 1-21, December.
    6. Norbert Zsiga & Johannes Ritzmann & Patrik Soltic, 2021. "Practical Aspects of Cylinder Deactivation and Reactivation," Energies, MDPI, vol. 14(9), pages 1-20, April.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lim, Ocktaeck & Hung, Nguyen Ba & Oh, Seokyoung & Kim, Gangchul & Song, Hanho & Iida, Norimasa, 2015. "A study of operating parameters on the linear spark ignition engine," Applied Energy, Elsevier, vol. 160(C), pages 746-760.
    2. Chen, Leiming & Xu, Zhaoping & Liu, Shuangshuang & Liu, Liang, 2022. "Dynamic modeling of a free-piston engine based on combustion parameters prediction," Energy, Elsevier, vol. 249(C).
    3. Hung, Nguyen Ba & Lim, Ocktaeck, 2016. "A review of free-piston linear engines," Applied Energy, Elsevier, vol. 178(C), pages 78-97.
    4. Ziwei Zhang & Huihua Feng & Zhengxing Zuo, 2020. "Numerical Investigation of a Free-Piston Hydrogen-Gasoline Engine Linear Generator," Energies, MDPI, vol. 13(18), pages 1-16, September.
    5. Jia, Boru & Zuo, Zhengxing & Feng, Huihua & Tian, Guohong & Smallbone, Andrew & Roskilly, A.P., 2016. "Effect of closed-loop controlled resonance based mechanism to start free piston engine generator: Simulation and test results," Applied Energy, Elsevier, vol. 164(C), pages 532-539.
    6. Boru Jia & Zhengxing Zuo & Andrew Smallbone & Huihua Feng & Anthony Paul Roskilly, 2017. "A Decoupled Design Parameter Analysis for Free-Piston Engine Generators," Energies, MDPI, vol. 10(4), pages 1-14, April.
    7. Hung, Nguyen Ba & Lim, Ocktaeck & Iida, Norimasa, 2015. "The effects of key parameters on the transition from SI combustion to HCCI combustion in a two-stroke free piston linear engine," Applied Energy, Elsevier, vol. 137(C), pages 385-401.
    8. Geng, Heming & Wang, Yang & Zhen, Xudong & Liu, Yu & Li, Zhiyong, 2018. "Study on adaptive behavior and mechanism of compression ratio (or piston motion profile) for combustion parameters in hydraulic free piston engine," Applied Energy, Elsevier, vol. 211(C), pages 921-928.
    9. Huihua Feng & Yu Song & Zhengxing Zuo & Jiao Shang & Yaodong Wang & Anthony Paul Roskilly, 2015. "Stable Operation and Electricity Generating Characteristics of a Single-Cylinder Free Piston Engine Linear Generator: Simulation and Experiments," Energies, MDPI, vol. 8(2), pages 1-21, January.
    10. Wu, Wei & Hu, Jibin & Yuan, Shihua, 2014. "Semi-analytical modelling of a hydraulic free-piston engine," Applied Energy, Elsevier, vol. 120(C), pages 75-84.
    11. Hu, Jibin & Wu, Wei & Yuan, Shihua & Jing, Chongbo, 2013. "Fuel combustion under asymmetric piston motion: Tested results," Energy, Elsevier, vol. 55(C), pages 209-215.
    12. Jia, Boru & Smallbone, Andrew & Feng, Huihua & Tian, Guohong & Zuo, Zhengxing & Roskilly, A.P., 2016. "A fast response free-piston engine generator numerical model for control applications," Applied Energy, Elsevier, vol. 162(C), pages 321-329.
    13. Guo, Chendong & Zuo, Zhengxing & Feng, Huihua & Jia, Boru & Roskilly, Tony, 2020. "Review of recent advances of free-piston internal combustion engine linear generator," Applied Energy, Elsevier, vol. 269(C).
    14. Zhang, Shuanlu & Zhao, Changlu & Zhao, Zhenfeng, 2015. "Stability analysis of hydraulic free piston engine," Applied Energy, Elsevier, vol. 157(C), pages 805-813.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:13:y:2020:i:7:p:1682-:d:340811. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.