IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v320y2025ics0360544225010242.html

Influence of dissociated methanol gas direct injection pressure on the performance of methanol port injection engine

Author

Listed:
  • Xiangyang, Wang
  • Huili, Dou
  • Liang, Zhang
  • Tong, Wu
  • Shuzhe, Ma
  • Xiaoping, Li
  • Fangxi, Xie

Abstract

Methanol is recognized as the most promising carbon-neutral fuel currently available. Online methanol dissociation for hydrogen production is an effective strategy to improve the efficiency of methanol engines. This paper investigates the impact of DMG injection parameters on methanol engine performance to explore the best combination of DMG injection parameters. Increasing the DMG injection pressure and optimizing the DMG injection timing can advance CA50, as well as shorten CA10-IG and CA90-CA10. Meanwhile, CO and HC emissions and BSFC decline, while NOx emissions rise. Analysis reveals that the optimal combination of DMG injection parameters is 8 MPa and 260 °CA BTDC. As speed and BMEP of engine rise, the influence of DMG injection pressure on combustion parameters progressively lessens. When DMG injection pressures are 2, 4, and 6 MPa compared to 8 MPa, BSFC increases by 0.9%–1.8 %, 0.3%–0.7 %, and 0.1%–0.2 % under various operating conditions (case 1-case 6), respectively.

Suggested Citation

  • Xiangyang, Wang & Huili, Dou & Liang, Zhang & Tong, Wu & Shuzhe, Ma & Xiaoping, Li & Fangxi, Xie, 2025. "Influence of dissociated methanol gas direct injection pressure on the performance of methanol port injection engine," Energy, Elsevier, vol. 320(C).
    • Handle: RePEc:eee:energy:v:320:y:2025:i:c:s0360544225010242
    DOI: 10.1016/j.energy.2025.135382
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225010242
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.135382?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

    for a different version of it.

    References listed on IDEAS

    as
    1. Wang, Yongjian & Long, Wuqiang & Lu, Mingfei & Dong, Pengbo & Tian, Hua & Wang, Yang & Xie, Chunyang & Tang, Yuanyou & Zhang, Weiqi, 2024. "A quasi-dimensional model of multiple-cycle fuel film evaporation in a port fuel injection spark-ignition methanol marine engine," Energy, Elsevier, vol. 308(C).
    2. Jiang, Yankun & Chen, Yexin & Xie, Man, 2022. "Effects of blending dissociated methanol gas with the fuel in gasoline engine," Energy, Elsevier, vol. 247(C).
    3. Lu, Yao & Que, Jinhao & Liu, Mingqiang & Zhao, Huazhi & Feng, Liyan, 2024. "Study on backfire characteristics of port fuel injection single-cylinder hydrogen internal combustion engine," Applied Energy, Elsevier, vol. 364(C).
    4. Zhang, Peiye & Liu, Ming & Hu, Wenting & Chong, Daotong & Yan, Junjie, 2025. "System design and thermo-economic analysis of a novel gas turbine combined cycle co-driven by methanol and solar energy," Applied Energy, Elsevier, vol. 380(C).
    5. Scherrer, Aline & Rogge, Karoline S., 2025. "When do incumbents adopt radical net-zero technologies? Analysing differences in strategy trajectories of European truck manufacturers towards alternative vehicle technologies," Technological Forecasting and Social Change, Elsevier, vol. 211(C).
    6. Xiao, Peng & Lee, Chia-fon & Wu, Han & Liu, Fushui, 2020. "Effects of hydrogen addition on the laminar methanol-air flame under different initial temperatures," Renewable Energy, Elsevier, vol. 154(C), pages 209-222.
    7. Gong, Changming & Li, Zhaohui & Sun, Jingzhen & Liu, Fenghua, 2020. "Evaluation on combustion and lean-burn limitof a medium compression ratio hydrogen/methanol dual-injection spark-ignition engine under methanol late-injection," Applied Energy, Elsevier, vol. 277(C).
    8. Xiangyang, Wang & Yu, Liu & Xiaoping, Li & Fangxi, Xie & Beiping, Jiang, 2024. "Experimental study on improvement of air-dilution combustion performance of methanol engine by adjusting intake guide flappers, exhaust variable valve timing and split injection," Energy, Elsevier, vol. 313(C).
    9. Yusri, I.M. & Mamat, R. & Najafi, G. & Razman, A. & Awad, Omar I. & Azmi, W.H. & Ishak, W.F.W. & Shaiful, A.I.M., 2017. "Alcohol based automotive fuels from first four alcohol family in compression and spark ignition engine: A review on engine performance and exhaust emissions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 77(C), pages 169-181.
    10. Li, Yongzhi & Yao, Mingfa & Liang, Heping & Liu, Haifeng & Wang, Hu & Zheng, Zunqing & Zhang, Zhi, 2024. "Energy analysis during cold start and warm up period of a methanol engine hybrid power system under several novel energy conversion strategies," Energy, Elsevier, vol. 308(C).
    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. Xiangyang, Wang & Yu, Liu & Xiaoping, Li & Beiping, Jiang & Fangxi, Xie & Zhaohui, Jin & Huili, Dou, 2025. "Impact of dissociated methanol gas direct injection strategy on performance of port-injection methanol engines under dilution combustion condition," Energy, Elsevier, vol. 321(C).
    2. Kumar, T. Sathish & Ashok, B., 2021. "Critical review on combustion phenomena of low carbon alcohols in SI engine with its challenges and future directions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 152(C).
    3. Jiang, Yankun & Chen, Yexin & Xie, Man, 2022. "Effects of blending dissociated methanol gas with the fuel in gasoline engine," Energy, Elsevier, vol. 247(C).
    4. Miaomiao Zhang & Jianbin Cao, 2025. "Effects of Two-Stage Injection on Combustion and Particulate Emissions of a Direct Injection Spark-Ignition Engine Fueled with Methanol–Gasoline Blends," Energies, MDPI, vol. 18(2), pages 1-14, January.
    5. Iraklis Zahos-Siagos & Vlasios Karathanassis & Dimitrios Karonis, 2018. "Exhaust Emissions and Physicochemical Properties of n -Butanol/Diesel Blends with 2-Ethylhexyl Nitrate (EHN) or Hydrotreated Used Cooking Oil (HUCO) as Cetane Improvers," Energies, MDPI, vol. 11(12), pages 1-20, December.
    6. Zhang, Yulin & Su, Yan & Han, Linpei & Xie, Fangxi & Shen, Bo & Lang, Maochun & Li, Xiaoping, 2025. "Experimental investigation of wall-film characteristics of methanol and ethanol sprays under varying flash-boiling intensities," Energy, Elsevier, vol. 340(C).
    7. Manju Dhakad Tanwar & Felipe Andrade Torres & Ali Mubarak Alqahtani & Pankaj Kumar Tanwar & Yashas Bhand & Omid Doustdar, 2023. "Promising Bioalcohols for Low-Emission Vehicles," Energies, MDPI, vol. 16(2), pages 1-22, January.
    8. Süleyman Şimşek & Hasan Saygın & Bülent Özdalyan, 2020. "Improvement of Fusel Oil Features and Effect of Its Use in Different Compression Ratios for an SI Engine on Performance and Emission," Energies, MDPI, vol. 13(7), pages 1-14, April.
    9. Shang, Zhen & Yu, Xiumin & Ren, Lei & Wei, Guowu & Li, Guanting & Li, Decheng & Li, Yinan, 2020. "Comparative study on effects of injection mode on combustion and emission characteristics of a combined injection n-butanol/gasoline SI engine with hydrogen direct injection," Energy, Elsevier, vol. 213(C).
    10. Oleg Bazaluk & Valerii Havrysh & Vitalii Nitsenko & Tomas Baležentis & Dalia Streimikiene & Elena A. Tarkhanova, 2020. "Assessment of Green Methanol Production Potential and Related Economic and Environmental Benefits: The Case of China," Energies, MDPI, vol. 13(12), pages 1-25, June.
    11. Łukasz Warguła & Mateusz Kukla & Piotr Lijewski & Michał Dobrzyński & Filip Markiewicz, 2020. "Influence of Innovative Woodchipper Speed Control Systems on Exhaust Gas Emissions and Fuel Consumption in Urban Areas," Energies, MDPI, vol. 13(13), pages 1-22, June.
    12. Yu, Changyou & Sun, Wanchen & Li, Degang & Zhang, Hao & Yang, Miao & Guo, Liang & Liu, Xia & Wang, Xiaotian & Wang, Xiangchao & Li, Renjie, 2025. "Experimental study on negative valve overlap condition and Miller cycle on combustion characteristics of ammonia-alcohol dual-fuel ignition engine," Energy, Elsevier, vol. 335(C).
    13. Bo Zhang & Huaiyu Wang & Shuofeng Wang, 2023. "Computational Investigation of Combustion, Performance, and Emissions of a Diesel-Hydrogen Dual-Fuel Engine," Sustainability, MDPI, vol. 15(4), pages 1-15, February.
    14. Shi, Cheng & Zhang, Zheng & Wang, Huaiyu & Wang, Jingyi & Cheng, Tengfei & Zhang, Liang, 2024. "Parametric analysis and optimization of the combustion process and pollutant performance for ammonia-diesel dual-fuel engines," Energy, Elsevier, vol. 296(C).
    15. Ekaterina S. Titova, 2019. "Biofuel Application as a Factor of Sustainable Development Ensuring: The Case of Russia," Energies, MDPI, vol. 12(20), pages 1-30, October.
    16. Fekadu Mosisa Wako & Gianmaria Pio & Ernesto Salzano, 2021. "Laminar Burning Velocity and Ignition Delay Time of Oxygenated Biofuel," Energies, MDPI, vol. 14(12), pages 1-26, June.
    17. Vargün, Mustafa & Özsezen, Ahmet Necati, 2023. "Evaluation of the effect of the fuel injection phase on the combustion and exhaust characteristics in a diesel engine operating with alcohol-diesel mixtures," Energy, Elsevier, vol. 270(C).
    18. Yin, Xiaojun & Sun, Nannan & Sun, Ting & Shen, Hongguang & Mehra, Roopesh Kumar & Liu, Junlong & Wang, Ying & Yang, Bo & Zeng, Ke, 2022. "Experimental investigation the effects of spark discharge characteristics on the heavy-duty spark ignition natural gas engine at low load condition," Energy, Elsevier, vol. 239(PC).
    19. Ghadikolaei, Meisam Ahmadi & Wong, Pak Kin & Cheung, Chun Shun & Ning, Zhi & Yung, Ka-Fu & Zhao, Jing & Gali, Nirmal Kumar & Berenjestanaki, Alireza Valipour, 2021. "Impact of lower and higher alcohols on the physicochemical properties of particulate matter from diesel engines: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    20. Huang, Yuhan & Surawski, Nic C. & Zhuang, Yuan & Zhou, John L. & Hong, Guang, 2021. "Dual injection: An effective and efficient technology to use renewable fuels in spark ignition engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:320:y:2025:i:c:s0360544225010242. 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.