IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v222y2018icp199-215.html
   My bibliography  Save this article

Realization of variable Otto-Atkinson cycle using variable timing hydraulic actuated valve train for performance and efficiency improvements in unthrottled gasoline engines

Author

Listed:
  • Li, Yangtao
  • Khajepour, Amir
  • Devaud, Cécile

Abstract

Variety of technologies along with the mechanisms for their implementations have been developed in order to pursue possible improvements in the performance and efficiency of gasoline engines. However, most of the commonly used techniques, such as the cam-based variable valve timings (VVT) and variable compression ratio (VCR), are realized by different kinds of complicated mechanisms, providing an extended but still relatively limited adjustability for attaining improved valve timings and different engine cycles according to the varying working conditions of the engine. In this research, by using the flexibility offered by the hydraulic actuated valve train (HAVT), a set of new valve motion strategies is developed for realizing a newly introduced engine cycle, the variable Otto-Atkinson cycle (VOAC), to achieve an unthrottled engine load control. The demonstrative VOAC test engine in this research is a converted baseline single-cylinder engine that is able to carry out a variable Otto cycle (VOC) at full load operations for achieving higher power performance while realizing a variable Atkinson cycle (VAC) at partial load operations for gaining better fuel economy without having any further modifications or attaching additional components to the engine. The baseline single-cylinder engine is modeled in GT-Suite and carefully calibrated by a series of experiments. Benefited from the HAVT features, the tunings of the VOAC engine can be realized easily to fulfill any requirements towards different desired engine characteristics. By adopting the proposed VOAC with optimized parameters, a 13.5% average improvement in the engine's output can be achieved under full load operations across the entire speed range. On top of that, it also shows that the resulted BSFC could be lowered by 16.1 g/kW·h on average over the sampled speed-load map of the engine running at partial load operations.

Suggested Citation

  • Li, Yangtao & Khajepour, Amir & Devaud, Cécile, 2018. "Realization of variable Otto-Atkinson cycle using variable timing hydraulic actuated valve train for performance and efficiency improvements in unthrottled gasoline engines," Applied Energy, Elsevier, vol. 222(C), pages 199-215.
    • Handle: RePEc:eee:appene:v:222:y:2018:i:c:p:199-215
    DOI: 10.1016/j.apenergy.2018.04.012
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261918305555
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2018.04.012?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. Zhao, Jinxing & Xu, Min, 2013. "Fuel economy optimization of an Atkinson cycle engine using genetic algorithm," Applied Energy, Elsevier, vol. 105(C), pages 335-348.
    2. De Bellis, Vincenzo, 2016. "Performance optimization of a spark-ignition turbocharged VVA engine under knock limited operation," Applied Energy, Elsevier, vol. 164(C), pages 162-174.
    3. Li, Y.G. & Pilidis, P., 2010. "GA-based design-point performance adaptation and its comparison with ICM-based approach," Applied Energy, Elsevier, vol. 87(1), pages 340-348, January.
    4. Sher, E. & Bar-Kohany, T., 2002. "Optimization of variable valve timing for maximizing performance of an unthrottled SI engine—a theoretical study," Energy, Elsevier, vol. 27(8), pages 757-775.
    5. Wei, Haiqiao & Zhu, Tianyu & Shu, Gequn & Tan, Linlin & Wang, Yuesen, 2012. "Gasoline engine exhaust gas recirculation – A review," Applied Energy, Elsevier, vol. 99(C), pages 534-544.
    6. Bonatesta, F. & Altamore, G. & Kalsi, J. & Cary, M., 2016. "Fuel economy analysis of part-load variable camshaft timing strategies in two modern small-capacity spark ignition engines," Applied Energy, Elsevier, vol. 164(C), pages 475-491.
    7. 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.
    8. Zhen, Xudong & Wang, Yang & Xu, Shuaiqing & Zhu, Yongsheng & Tao, Chengjun & Xu, Tao & Song, Mingzhi, 2012. "The engine knock analysis – An overview," Applied Energy, Elsevier, vol. 92(C), pages 628-636.
    9. 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.
    10. Hidrue, Michael K. & Parsons, George R., 2015. "Is there a near-term market for vehicle-to-grid electric vehicles?," Applied Energy, Elsevier, vol. 151(C), pages 67-76.
    11. Teodosio, Luigi & Pirrello, Dino & Berni, Fabio & De Bellis, Vincenzo & Lanzafame, Rosario & D'Adamo, Alessandro, 2018. "Impact of intake valve strategies on fuel consumption and knock tendency of a spark ignition engine," Applied Energy, Elsevier, vol. 216(C), pages 91-104.
    12. Li, Yangtao & Khajepour, Amir & Devaud, Cécile & Liu, Kaimin, 2017. "Power and fuel economy optimizations of gasoline engines using hydraulic variable valve actuation system," Applied Energy, Elsevier, vol. 206(C), pages 577-593.
    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. Zhao, Jinxing & Fu, Rui & Wang, Sen & Xu, Hongchang & Yuan, Zhiyuan, 2022. "Fuel economy improvement of a turbocharged gasoline SI engine through combining cooled EGR and high compression ratio," Energy, Elsevier, vol. 239(PE).
    2. Qian, Yejian & Gong, Zhen & Zhuang, Yuan & Wang, Chunmei & Zhao, Peng, 2018. "Mechanism study of scavenging process and its effect on combustion characteristics in a boosted GDI engine," Energy, Elsevier, vol. 165(PA), pages 246-266.
    3. Mahabadipour, Hamidreza & Srinivasan, Kalyan K. & Krishnan, Sundar R., 2019. "An exergy analysis methodology for internal combustion engines using a multi-zone simulation of dual fuel low temperature combustion," Applied Energy, Elsevier, vol. 256(C).
    4. Liu, Qi & Guo, Tao & Fu, Jianqin & Dai, Hongliang & Liu, Jingping, 2022. "Experimental study on the effects of injection parameters and exhaust gas recirculation on combustion, emission and performance of Atkinson cycle gasoline direct-injection engine," Energy, Elsevier, vol. 238(PB).
    5. Longxin Jiang & Liang Liu & Xiaowei Peng & Zhaoping Xu, 2020. "Design and Analysis of a Fully Variable Valve Actuation System," Energies, MDPI, vol. 13(23), pages 1-16, December.

    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. Li, Yangtao & Khajepour, Amir & Devaud, Cécile & Liu, Kaimin, 2017. "Power and fuel economy optimizations of gasoline engines using hydraulic variable valve actuation system," Applied Energy, Elsevier, vol. 206(C), pages 577-593.
    2. 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.
    3. De Bellis, Vincenzo, 2016. "Performance optimization of a spark-ignition turbocharged VVA engine under knock limited operation," Applied Energy, Elsevier, vol. 164(C), pages 162-174.
    4. Teodosio, Luigi & Pirrello, Dino & Berni, Fabio & De Bellis, Vincenzo & Lanzafame, Rosario & D'Adamo, Alessandro, 2018. "Impact of intake valve strategies on fuel consumption and knock tendency of a spark ignition engine," Applied Energy, Elsevier, vol. 216(C), pages 91-104.
    5. Pauras Sawant & Michael Warstler & Saiful Bari, 2018. "Exhaust Tuning of an Internal Combustion Engine by the Combined Effects of Variable Exhaust Pipe Diameter and an Exhaust Valve Timing System," Energies, MDPI, vol. 11(6), pages 1-16, June.
    6. Rami Y. Dahham & Haiqiao Wei & Jiaying Pan, 2022. "Improving Thermal Efficiency of Internal Combustion Engines: Recent Progress and Remaining Challenges," Energies, MDPI, vol. 15(17), pages 1-60, August.
    7. Tadros, M. & Ventura, M. & Guedes Soares, C., 2019. "Optimization procedure to minimize fuel consumption of a four-stroke marine turbocharged diesel engine," Energy, Elsevier, vol. 168(C), pages 897-908.
    8. Tornatore, Cinzia & Bozza, Fabio & De Bellis, Vincenzo & Teodosio, Luigi & Valentino, Gerardo & Marchitto, Luca, 2019. "Experimental and numerical study on the influence of cooled EGR on knock tendency, performance and emissions of a downsized spark-ignition engine," Energy, Elsevier, vol. 172(C), pages 968-976.
    9. Zhou, Xianjie & Chen, Zheng & Zou, Peng & Liu, Jingping & Duan, Xiongbo & Qin, Tao & Zhang, Shiheng & Shen, Dazi, 2020. "Combustion and energy balance analysis of an unthrottled gasoline engine equipped with innovative variable valvetrain," Applied Energy, Elsevier, vol. 268(C).
    10. Yang, Zhuyong & Miganakallu, Niranjan & Miller, Tyler & Bonfochi Vinhaes, Vinicius & Worm, Jeremy & Naber, Jeffrey & Roth, David, 2020. "Investigation of high load operation of spark-ignited over-expanded Atkinson cycle engine," Applied Energy, Elsevier, vol. 262(C).
    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. 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.
    14. 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.
    15. 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.
    16. Vafamehr, Hassan & Cairns, Alasdair & Sampson, Ojon & Koupaie, Mohammadmohsen Moslemin, 2016. "The competing chemical and physical effects of transient fuel enrichment on heavy knock in an optical spark ignition engine," Applied Energy, Elsevier, vol. 179(C), pages 687-697.
    17. Deng, Banglin & Yang, Jing & Zhang, Daming & Feng, Renhua & Fu, Jianqin & Liu, Jingping & Li, Ke & Liu, Xiaoqiang, 2013. "The challenges and strategies of butanol application in conventional engines: The sensitivity study of ignition and valve timing," Applied Energy, Elsevier, vol. 108(C), pages 248-260.
    18. Wang, Shuofeng & Ji, Changwei & Zhang, Bo & Liu, Xiaolong, 2014. "Lean burn performance of a hydrogen-blended gasoline engine at the wide open throttle condition," Applied Energy, Elsevier, vol. 136(C), pages 43-50.
    19. Xu, Han & Weng, Chunsheng & Gao, Jian & Yao, Chunde, 2020. "The effect of energy intensification on the formation of severe knock in internal combustion engines," Applied Energy, Elsevier, vol. 266(C).
    20. Pan, Jiaying & Wei, Haiqiao & Shu, Gequn & Pan, Mingzhang & Feng, Dengquan & Li, Nan, 2017. "LES analysis for auto-ignition induced abnormal combustion based on a downsized SI engine," Applied Energy, Elsevier, vol. 191(C), pages 183-192.

    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:appene:v:222:y:2018:i:c:p:199-215. 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.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    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.