IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v71y2014icp202-217.html
   My bibliography  Save this article

A CFD (computational fluid dynamics) study on the effects of operating an engine with low intake valve lift at idle corresponding speed

Author

Listed:
  • Clenci, Adrian Constantin
  • Iorga-Simăn, Victor
  • Deligant, Michael
  • Podevin, Pierre
  • Descombes, Georges
  • Niculescu, Rodica

Abstract

Reducing fuel consumption is a prime objective in order to meet regulatory and customer demands. Given this context, an original port fuel injected engine featuring variable valve actuation was initially investigated when operating at idle with low intake valve lift. An improvement of both fuel economy and engine cycle-to-cycle variability was recorded at idle operation, which is a prominent feature of real world driving, especially in congested city traffic. To complete the picture, however, results concerning the engine's internal aerodynamics are necessary. In the present study, the internal aerodynamics and gas exchange phenomena of the engine are examined when using low intake valve lift. For this purpose, a 3D CFD (computational fluid dynamics) dynamic simulation of the motored engine at a speed corresponding to idle operation has been adopted. Experimentation was also performed to obtain data to set the initial and boundary conditions and to calibrate and validate the CFD model. The results provide important insights into the effects of operating the engine with low intake valve lift: increased flow velocity, turbulence and swirl intensity and reduction of internal EGR (exhaust gas recirculation). Thus, this CFD study confirmed our previous work recorded phenomena mentioned as the cause of the engine's idle operation improvement.

Suggested Citation

  • Clenci, Adrian Constantin & Iorga-Simăn, Victor & Deligant, Michael & Podevin, Pierre & Descombes, Georges & Niculescu, Rodica, 2014. "A CFD (computational fluid dynamics) study on the effects of operating an engine with low intake valve lift at idle corresponding speed," Energy, Elsevier, vol. 71(C), pages 202-217.
    • Handle: RePEc:eee:energy:v:71:y:2014:i:c:p:202-217
    DOI: 10.1016/j.energy.2014.04.069
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544214004824
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2014.04.069?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Adrian Clenci & Adrian Bîzîiac & Pierre Podevin & Georges Descombes & Michael Deligant & Rodica Niculescu, 2013. "Idle Operation with Low Intake Valve Lift in a Port Fuel Injected Engine," Energies, MDPI, vol. 6(6), pages 1-18, June.
    2. Jia, Ming & Li, Yaopeng & Xie, Maozhao & Wang, Tianyou, 2013. "Numerical evaluation of the potential of late intake valve closing strategy for diesel PCCI (premixed charge compression ignition) engine in a wide speed and load range," Energy, Elsevier, vol. 51(C), pages 203-215.
    3. Taylor, Alex M.K.P., 2008. "Science review of internal combustion engines," Energy Policy, Elsevier, vol. 36(12), pages 4657-4667, December.
    4. Plotkin, Steven E., 2009. "Examining fuel economy and carbon standards for light vehicles," Energy Policy, Elsevier, vol. 37(10), pages 3843-3853, October.
    5. Fontana, G. & Galloni, E., 2009. "Variable valve timing for fuel economy improvement in a small spark-ignition engine," Applied Energy, Elsevier, vol. 86(1), pages 96-105, January.
    6. Begg, S.M. & Hindle, M.P. & Cowell, T. & Heikal, M.R., 2009. "Low intake valve lift in a port fuel-injected engine," Energy, Elsevier, vol. 34(12), pages 2042-2050.
    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. Ramasamy, D. & Zainal, Z.A. & Kadirgama, K. & Walker-Gitano Briggs, Horizon, 2016. "Effect of dissimilar valve lift on a bi-fuel CNG engine operation," Energy, Elsevier, vol. 112(C), pages 509-519.
    2. Qian, Jin-yuan & Wei, Lin & Zhang, Ming & Chen, Fu-qiang & Chen, Li-long & Jiang, Wei-kang & Jin, Zhi-jiang, 2017. "Flow rate analysis of compressible superheated steam through pressure reducing valves," Energy, Elsevier, vol. 135(C), pages 650-658.
    3. Song, Jingeun & Kim, Taehoon & Jang, Jihwan & Park, Sungwook, 2015. "Effects of the injection strategy on the mixture formation and combustion characteristics in a DISI (direct injection spark ignition) optical engine," Energy, Elsevier, vol. 93(P2), pages 1758-1768.
    4. Fard, Soheil Mohagheghi & Huang, Yanjun & Khazraee, Milad & Khajepour, Amir, 2017. "A novel anti-idling system for service vehicles," Energy, Elsevier, vol. 127(C), pages 650-659.
    5. Jana Hoffmann & Niklas Mirsch & Walter Vera-Tudela & Dario Wüthrich & Jorim Rosenberg & Marco Günther & Stefan Pischinger & Daniel A. Weiss & Kai Herrmann, 2023. "Flow Field Investigation of a Single Engine Valve Using PIV, POD, and LES," Energies, MDPI, vol. 16(5), pages 1-31, March.
    6. Jana Hoffmann & Walter Vera-Tudela & Niklas Mirsch & Dario Wüthrich & Bruno Schneider & Marco Günther & Stefan Pischinger & Daniel A. Weiss & Kai Herrmann, 2023. "Investigation of Flow Fields Emanating from Two Parallel Inlet Valves Using LES, PIV, and POD," Energies, MDPI, vol. 16(19), pages 1-29, September.
    7. Ji, Changwei & Shi, Lei & Wang, Shuofeng & Cong, Xiaoyu & Su, Teng & Yu, Menghui, 2017. "Investigation on performance of a spark-ignition engine fueled with dimethyl ether and gasoline mixtures under idle and stoichiometric conditions," Energy, Elsevier, vol. 126(C), pages 335-342.
    8. Zhang, Wei & Chen, Zhaohui & Duan, Qiwang & Jiang, Qianyu, 2021. "Visual test and evolutionary analysis of flow fields in cylinder of helical intake port diesel engine," Energy, Elsevier, vol. 223(C).
    9. Tripathy, Srinibas & Das, Abhimanyu & Srivastava, Dhananjay Kumar, 2020. "Electro-pneumatic variable valve actuation system for camless engine: Part II-fuel consumption improvement through un-throttled operation," Energy, Elsevier, vol. 193(C).

    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. Adrian Clenci & Adrian Bîzîiac & Pierre Podevin & Georges Descombes & Michael Deligant & Rodica Niculescu, 2013. "Idle Operation with Low Intake Valve Lift in a Port Fuel Injected Engine," Energies, MDPI, vol. 6(6), pages 1-18, June.
    2. Yuan, Zhipeng & Fu, Jianqin & Liu, Qi & Ma, Yinjie & Zhan, Zhangsong, 2018. "Quantitative study on influence factors of power performance of variable valve timing (VVT) engines and correction of its governing equation," Energy, Elsevier, vol. 157(C), pages 314-326.
    3. de Salvo Junior, Orlando & Saraiva de Souza, Maria Tereza & Vaz de Almeida, Flávio G., 2021. "Implementation of new technologies for reducing fuel consumption of automobiles in Brazil according to the Brazilian Vehicle Labelling Programme," Energy, Elsevier, vol. 233(C).
    4. Tripathy, Srinibas & Das, Abhimanyu & Srivastava, Dhananjay Kumar, 2020. "Electro-pneumatic variable valve actuation system for camless engine: Part II-fuel consumption improvement through un-throttled operation," Energy, Elsevier, vol. 193(C).
    5. Zhao, Jinxing, 2017. "Research and application of over-expansion cycle (Atkinson and Miller) engines – A review," Applied Energy, Elsevier, vol. 185(P1), pages 300-319.
    6. Wei Tian & Hongchuan Zhang & Lenian Wang & Zhiqiang Han & Wenbin Yu, 2020. "Effect of Premixed n-Butanol Ratio on the Initial Stage of Combustion in a Light-Duty Butanol/Diesel Dual-Fuel Engine," Energies, MDPI, vol. 13(17), pages 1-10, August.
    7. Curto-Risso, P.L. & Medina, A. & Calvo Hernández, A. & Guzmán-Vargas, L. & Angulo-Brown, F., 2011. "On cycle-to-cycle heat release variations in a simulated spark ignition heat engine," Applied Energy, Elsevier, vol. 88(5), pages 1557-1567, May.
    8. Mamat, Aman M.I. & Romagnoli, Alessandro & Martinez-Botas, Ricardo F., 2014. "Characterisation of a low pressure turbine for turbocompounding applications in a heavily downsized mild-hybrid gasoline engine," Energy, Elsevier, vol. 64(C), pages 3-16.
    9. Bhardwaj, Chandan & Axsen, Jonn & Kern, Florian & McCollum, David, 2020. "Why have multiple climate policies for light-duty vehicles? Policy mix rationales, interactions and research gaps," Transportation Research Part A: Policy and Practice, Elsevier, vol. 135(C), pages 309-326.
    10. Liang, Chen & Ji, Changwei & Liu, Xiaolong, 2011. "Combustion and emissions performance of a DME-enriched spark-ignited methanol engine at idle condition," Applied Energy, Elsevier, vol. 88(11), pages 3704-3711.
    11. Osorio, Julian D. & Rivera-Alvarez, Alejandro, 2018. "Efficiency enhancement of spark-ignition engines using a Continuous Variable Valve Timing system for load control," Energy, Elsevier, vol. 161(C), pages 649-662.
    12. Shen, Kai & Xu, Zishun & Chen, Hong & Zhang, Zhendong, 2021. "Investigation on the EGR effect to further improve fuel economy and emissions effect of Miller cycle turbocharged engine," Energy, Elsevier, vol. 215(PB).
    13. Azmi, W.H. & Sharif, M.Z. & Yusof, T.M. & Mamat, Rizalman & Redhwan, A.A.M., 2017. "Potential of nanorefrigerant and nanolubricant on energy saving in refrigeration system – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 69(C), pages 415-428.
    14. Ashish J Chaudhari & Santosh K Hotta & Niranjan Sahoo & Vinayak Kulkarni, 2019. "Effect of vertical location of the spark plug on the performance of a raw biogas-fueled variable compression ratio spark ignition engine," Energy & Environment, , vol. 30(7), pages 1313-1338, November.
    15. Sheinbaum-Pardo, Claudia & Chávez-Baeza, Carlos, 2011. "Fuel economy of new passenger cars in Mexico: Trends from 1988 to 2008 and prospects," Energy Policy, Elsevier, vol. 39(12), pages 8153-8162.
    16. Zhang, Zhijin & Zhang, Haiyan & Wang, Tianyou & Jia, Ming, 2014. "Effects of tumble combined with EGR (exhaust gas recirculation) on the combustion and emissions in a spark ignition engine at part loads," Energy, Elsevier, vol. 65(C), pages 18-24.
    17. Xiao, Gang & Jia, Ming & Wang, Tianyou, 2016. "Large eddy simulation of n-heptane spray combustion in partially premixed combustion regime with linear eddy model," Energy, Elsevier, vol. 97(C), pages 20-35.
    18. Li, Yaopeng & Jia, Ming & Chang, Yachao & Liu, Yaodong & Xie, Maozhao & Wang, Tianyou & Zhou, Lei, 2014. "Parametric study and optimization of a RCCI (reactivity controlled compression ignition) engine fueled with methanol and diesel," Energy, Elsevier, vol. 65(C), pages 319-332.
    19. Aghaali, Habib & Ångström, Hans-Erik, 2015. "A review of turbocompounding as a waste heat recovery system for internal combustion engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 49(C), pages 813-824.
    20. Ramasamy, D. & Zainal, Z.A. & Kadirgama, K. & Walker-Gitano Briggs, Horizon, 2016. "Effect of dissimilar valve lift on a bi-fuel CNG engine operation," Energy, Elsevier, vol. 112(C), pages 509-519.

    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:eee:energy:v:71:y:2014:i:c:p:202-217. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    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.