IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v288y2024ics0360544223032371.html
   My bibliography  Save this article

The relationship between fuel reactivity and exergy features in combustion process

Author

Listed:
  • Zhang, Xuan
  • Wei, Jianan
  • Liu, Haifeng
  • Cai, Yuqing
  • Wang, Hu
  • Yao, Mingfa

Abstract

Fuel reactivity is a flexible and feasible method to control combustion, thus reactivity-controlled compression ignition (RCCI) has the potential to achieve lower emissions and higher thermal efficiency. However, the exergy loss during combustion hinders the further exergy-work transform, which limits the thermal efficiency further improvement. The present work focuses on the relationship between fuel reactivity and exergy which contains exergy loss (EL) and thermomechanical exergy (Exthermo due to the temperature and pressure imbalance between system and reference state). By varying the reactivity of primary reference fuels (PRFs) with different initial boundary conditions, it is found that different PRFs could not reduce EL and change Exthermo under same condition but could change the exergy loss rate as well as the EL structure by influencing low-temperature combustion. In terms of boundary conditions, both high temperature and lean mixture could improve Exthermo but with different mechanism: high temperature saving EL into Exthermo, lean mixture recovering incomplete combustion exergy (Exincom) into Exthermo. By contrast, equivalence ratio more easily affects EL and Exthermo. In three-dimensional situation, it is found that decreasing reactivity of PRFs leads more in-cylinder area below equivalence ratio 1.0 which benefits for the Exthermo improvement, but it would cause Exthermo structure mutation which is unfriendly for the smooth output of work near top dead center. The conversion of fuel exergy to final useful work is indirect, and there exist two sub-processes: fuel exergy to thermomechanical exergy then thermomechanical exergy to useful work. The final exergy-work transform efficiency is influenced by both processes. Therefore, using low reactivity fuel as PRF90 in engine is favor of the exergy from fuel transforming into Exthermo by more lean mixture, adopting high reactivity fuel as PRF0 is favor of the Exthermo sequential structure which is benefit for the combustion control and useful work extract near top dead center. Therefore, there is potential to further improve the thermal efficiency by using a dual-fuel combination, with the low reactivity fuel creating a low equivalence ratio region to improve the thermomechanical exergy, and the high reactivity fuel achieving precise phase control during the combustion.

Suggested Citation

  • Zhang, Xuan & Wei, Jianan & Liu, Haifeng & Cai, Yuqing & Wang, Hu & Yao, Mingfa, 2024. "The relationship between fuel reactivity and exergy features in combustion process," Energy, Elsevier, vol. 288(C).
    • Handle: RePEc:eee:energy:v:288:y:2024:i:c:s0360544223032371
    DOI: 10.1016/j.energy.2023.129843
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544223032371
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2023.129843?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. García, Antonio & Carlucci, Paolo & Monsalve-Serrano, Javier & Valletta, Andrea & Martínez-Boggio, Santiago, 2021. "Energy management optimization for a power-split hybrid in a dual-mode RCCI-CDC engine," Applied Energy, Elsevier, vol. 302(C).
    2. Saxena, Samveg & Shah, Nihar & Bedoya, Ivan & Phadke, Amol, 2014. "Understanding optimal engine operating strategies for gasoline-fueled HCCI engines using crank-angle resolved exergy analysis," Applied Energy, Elsevier, vol. 114(C), pages 155-163.
    3. Sun, Hongjie & Yan, Feng & Yu, Hao & Su, W.H., 2015. "Analysis of exergy loss of gasoline surrogate combustion process based on detailed chemical kinetics," Applied Energy, Elsevier, vol. 152(C), pages 11-19.
    4. Li, Yaopeng & Jia, Ming & Chang, Yachao & Kokjohn, Sage L. & Reitz, Rolf D., 2016. "Thermodynamic energy and exergy analysis of three different engine combustion regimes," Applied Energy, Elsevier, vol. 180(C), pages 849-858.
    5. Razmara, M. & Bidarvatan, M. & Shahbakhti, M. & Robinett, R.D., 2016. "Optimal exergy-based control of internal combustion engines," Applied Energy, Elsevier, vol. 183(C), pages 1389-1403.
    6. Li, Yaopeng & Jia, Ming & Kokjohn, Sage L. & Chang, Yachao & Reitz, Rolf D., 2018. "Comprehensive analysis of exergy destruction sources in different engine combustion regimes," Energy, Elsevier, vol. 149(C), pages 697-708.
    Full references (including those not matched with items on IDEAS)

    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, Yaopeng & Jia, Ming & Kokjohn, Sage L. & Chang, Yachao & Reitz, Rolf D., 2018. "Comprehensive analysis of exergy destruction sources in different engine combustion regimes," Energy, Elsevier, vol. 149(C), pages 697-708.
    2. Wei, Jianan & Liu, Haifeng & Zhu, Hongyan & Cai, Yuqing & Wang, Hu & Yao, Mingfa, 2023. "Energy analysis and optimization of iso-octane and n-heptane combustion process," Energy, Elsevier, vol. 262(PB).
    3. Wang, Buyu & Pamminger, Michael & Wallner, Thomas, 2019. "Impact of fuel and engine operating conditions on efficiency of a heavy duty truck engine running compression ignition mode using energy and exergy analysis," Applied Energy, Elsevier, vol. 254(C).
    4. 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).
    5. Eyal, Amnon & Tartakovsky, Leonid, 2020. "Second-law analysis of the reforming-controlled compression ignition," Applied Energy, Elsevier, vol. 263(C).
    6. Li, Yaopeng & Jia, Ming & Chang, Yachao & Kokjohn, Sage L. & Reitz, Rolf D., 2016. "Thermodynamic energy and exergy analysis of three different engine combustion regimes," Applied Energy, Elsevier, vol. 180(C), pages 849-858.
    7. Yao, Zhi-Min & Qian, Zuo-Qin & Li, Rong & Hu, Eric, 2019. "Energy efficiency analysis of marine high-powered medium-speed diesel engine base on energy balance and exergy," Energy, Elsevier, vol. 176(C), pages 991-1006.
    8. Ma, Baodong & Yao, Anren & Yao, Chunde & Wu, Taoyang & Wang, Bin & Gao, Jian & Chen, Chao, 2020. "Exergy loss analysis on diesel methanol dual fuel engine under different operating parameters," Applied Energy, Elsevier, vol. 261(C).
    9. Broekaert, Stijn & De Cuyper, Thomas & De Paepe, Michel & Verhelst, Sebastian, 2017. "Evaluation of empirical heat transfer models for HCCI combustion in a CFR engine," Applied Energy, Elsevier, vol. 205(C), pages 1141-1150.
    10. Li, Yaopeng & Jia, Ming & Han, Xu & Bai, Xue-Song, 2021. "Towards a comprehensive optimization of engine efficiency and emissions by coupling artificial neural network (ANN) with genetic algorithm (GA)," Energy, Elsevier, vol. 225(C).
    11. Adriano da S. Marques & Monica Carvalho & Álvaro A. V. Ochoa & Ronelly J. Souza & Carlos A. C. dos Santos, 2020. "Exergoeconomic Assessment of a Compact Electricity-Cooling Cogeneration Unit," Energies, MDPI, vol. 13(20), pages 1-18, October.
    12. Chehrmonavari, Hamed & Kakaee, Amirhasan & Hosseini, Seyed Ehsan & Desideri, Umberto & Tsatsaronis, George & Floerchinger, Gus & Braun, Robert & Paykani, Amin, 2023. "Hybridizing solid oxide fuel cells with internal combustion engines for power and propulsion systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 171(C).
    13. Halis, Serdar & Doğan, Battal, 2023. "Effects of intake air temperature on energy, exergy and sustainability analyses in an RCCI engine fueled with iso-propanol and n-heptane," Energy, Elsevier, vol. 284(C).
    14. Mahabadipour, Hamidreza & Srinivasan, Kalyan K. & Krishnan, Sundar R., 2017. "A second law-based framework to identify high efficiency pathways in dual fuel low temperature combustion," Applied Energy, Elsevier, vol. 202(C), pages 199-212.
    15. Kale, Aneesh Vijay & Krishnasamy, Anand, 2023. "Experimental study of homogeneous charge compression ignition combustion in a light-duty diesel engine fueled with isopropanol–gasoline blends," Energy, Elsevier, vol. 264(C).
    16. Dettù, Federico & Pozzato, Gabriele & Rizzo, Denise M. & Onori, Simona, 2021. "Exergy-based modeling framework for hybrid and electric ground vehicles," Applied Energy, Elsevier, vol. 300(C).
    17. Khalili-Garakani, Amirhossein & Ivakpour, Javad & Kasiri, Norollah, 2016. "Evolutionary synthesis of optimum light ends recovery unit with exergy analysis application," Applied Energy, Elsevier, vol. 168(C), pages 507-522.
    18. Sun, Hongjie & Yan, Feng & Yu, Hao & Su, W.H., 2015. "Analysis of exergy loss of gasoline surrogate combustion process based on detailed chemical kinetics," Applied Energy, Elsevier, vol. 152(C), pages 11-19.
    19. Lucia, Umberto & Grisolia, Giulia & Francia, Sabrina & Astori, Mariarosa, 2019. "Theoretical biophysical approach to cross-linking effects on eyes pressure," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 534(C).
    20. Kang, Yinhu & Wang, Qiang & Zhang, Pengyuan & Liu, Congcong & Lu, Xiaofeng & Wang, Quanhai, 2020. "Study on flame structure and extinction mechanism of dimethyl ether spherical diffusion flames," Energy, Elsevier, vol. 193(C).

    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:288:y:2024:i:c:s0360544223032371. 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.