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Influence of water emulsified diesel & oxygen-enriched air on diesel engine NO-smoke emissions and combustion characteristics

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  • Zhang, Wei
  • Chen, Zhaohui
  • Shen, Yinggang
  • Shu, Gequn
  • Chen, Guisheng
  • Xu, Biao
  • Zhao, Wei

Abstract

Oxygen-enriched combustion of diesel engine can reduce smoke emission and improve thermal efficiency, but also lead to the increase of NO emission. In this research, experiments were conducted on a turbo-charged direct injection diesel engine under the two conditions of 2000 rpm and 180 Nm equivalent power (57% of the original max load at 2000 rpm) as well as 100% load of this speed. The combination of intake oxygen enrichment and water emulsified diesel was used to improve the NO-smoke emissions without serious penalty in brake specific fuel consumption (BSFC). The results showed that when engine load was 180 Nm with the conditions of 0%–20% water emulsion ratio and 21%–21.5% intake oxygen concentration, as well as under the condition of 100% load with 10%–15% water emulsion ratio and 21%–22% intake oxygen concentration, the NO-Smoke emissions were lower than that of original engine and BSFC was not exceeding 5% of the original engine by optimized combination of water emulsion ratio and oxygen concentration.

Suggested Citation

  • Zhang, Wei & Chen, Zhaohui & Shen, Yinggang & Shu, Gequn & Chen, Guisheng & Xu, Biao & Zhao, Wei, 2013. "Influence of water emulsified diesel & oxygen-enriched air on diesel engine NO-smoke emissions and combustion characteristics," Energy, Elsevier, vol. 55(C), pages 369-377.
    • Handle: RePEc:eee:energy:v:55:y:2013:i:c:p:369-377
    DOI: 10.1016/j.energy.2013.03.042
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    5. Zhaowen Wang & Shang Wu & Yuhan Huang & Yulin Chen & Shuguo Shi & Xiaobei Cheng & Ronghua Huang, 2017. "Evaporation and Ignition Characteristics of Water Emulsified Diesel under Conventional and Low Temperature Combustion Conditions," Energies, MDPI, vol. 10(8), pages 1-14, July.
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    9. Hazar, Hanbey & Tekdogan, Remziye & Sevinc, Huseyin, 2021. "Determination of the effects of oxygen-enriched air with the help of zeolites on the exhaust emission and performance of a diesel engine," Energy, Elsevier, vol. 236(C).
    10. Li, Jun & Huang, Hongyu & Kobayashi, Noriyuki & He, Zhaohong & Osaka, Yugo & Zeng, Tao, 2015. "Numerical study on effect of oxygen content in combustion air on ammonia combustion," Energy, Elsevier, vol. 93(P2), pages 2053-2068.
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    12. Mohd Fadzli Hamid & Yew Heng Teoh & Mohamad Yusof Idroas & Mazlan Mohamed & Shukriwani Sa’ad & Sharzali Che Mat & Muhammad Khalil Abdullah & Thanh Danh Le & Heoy Geok How & Huu Tho Nguyen, 2022. "A Review of the Emulsification Method for Alternative Fuels Used in Diesel Engines," Energies, MDPI, vol. 15(24), pages 1-26, December.
    13. Hegab, Abdelrahman & La Rocca, Antonino & Shayler, Paul, 2017. "Towards keeping diesel fuel supply and demand in balance: Dual-fuelling of diesel engines with natural gas," Renewable and Sustainable Energy Reviews, Elsevier, vol. 70(C), pages 666-697.
    14. Abdelaal, Mohsen M. & Rabee, Basem A. & Hegab, Abdelrahman H., 2013. "Effect of adding oxygen to the intake air on a dual-fuel engine performance, emissions, and knock tendency," Energy, Elsevier, vol. 61(C), pages 612-620.
    15. Park, Youngsoo & Bae, Choongsik, 2014. "Experimental study on the effects of high/low pressure EGR proportion in a passenger car diesel engine," Applied Energy, Elsevier, vol. 133(C), pages 308-316.
    16. Kökkülünk, Görkem & Parlak, Adnan & Ayhan, Vezir & Cesur, İdris & Gonca, Güven & Boru, Barış, 2014. "Theoretical and experimental investigation of steam injected diesel engine with EGR," Energy, Elsevier, vol. 74(C), pages 331-339.
    17. Mohd Arshad, Aizam Shahroni & Nada, Yuzuru & Kidoguchi, Yoshiyuki & Asao, Daisuke & Yoshimura, Shinichiro, 2019. "Rapid emulsification of a fuel–water rapid internal mixing injector for emulsion fuel combustion," Energy, Elsevier, vol. 167(C), pages 35-46.
    18. Soni, Dinesh Kumar & Gupta, Rajesh, 2017. "Application of nano emulsion method in a methanol powered diesel engine," Energy, Elsevier, vol. 126(C), pages 638-648.
    19. Melo-Espinosa, Eliezer Ahmed & Piloto-Rodríguez, Ramón & Goyos-Pérez, Leonardo & Sierens, Roger & Verhelst, Sebastian, 2015. "Emulsification of animal fats and vegetable oils for their use as a diesel engine fuel: An overview," Renewable and Sustainable Energy Reviews, Elsevier, vol. 47(C), pages 623-633.
    20. Liang, Jie & Qian, Yingying & Yuan, Xingzhong & Leng, Lijian & Zeng, Guangming & Jiang, Longbo & Shao, Jianguang & Luo, Yuan & Ding, Xiaowei & Yang, Zhaoxue & Li, Xuemei, 2018. "Span80/Tween80 stabilized bio-oil-in-diesel microemulsion: Formation and combustion," Renewable Energy, Elsevier, vol. 126(C), pages 774-782.
    21. Ismael, Mhadi A. & A. Aziz, A. Rashid & Mohammed, Salah E. & Zainal A, Ezrann Z. & Baharom, Masri B. & Hagos, Ftwi Yohaness, 2021. "Macroscopic and microscopic spray structure of water-in-diesel emulsions," Energy, Elsevier, vol. 223(C).

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