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Experimental and numerical assessment of impingement and mixing of urea–water sprays for nitric oxide reduction in diesel exhaust

Author

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  • Varna, Achinta
  • Spiteri, Alexander C.
  • Wright, Yuri M.
  • Dimopoulos Eggenschwiler, Panayotis
  • Boulouchos, Konstantinos

Abstract

This study presents a joint experimental and numerical investigation of a spray used in selective catalytic NOx reduction (SCR) after-treatment systems for Diesel engine exhaust gases. The focus lies on the impingement conditions and distribution and mixing mechanisms of the spray in cross-flowing exhaust gases. These aspects are vital to system performance but still not well described.

Suggested Citation

  • Varna, Achinta & Spiteri, Alexander C. & Wright, Yuri M. & Dimopoulos Eggenschwiler, Panayotis & Boulouchos, Konstantinos, 2015. "Experimental and numerical assessment of impingement and mixing of urea–water sprays for nitric oxide reduction in diesel exhaust," Applied Energy, Elsevier, vol. 157(C), pages 824-837.
    • Handle: RePEc:eee:appene:v:157:y:2015:i:c:p:824-837
    DOI: 10.1016/j.apenergy.2015.03.015
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    Cited by:

    1. Kaario, Ossi Tapani & Vuorinen, Ville & Zhu, Lei & Larmi, Martti & Liu, Ronghou, 2017. "Mixing and evaporation analysis of a high-pressure SCR system using a hybrid LES-RANS approach," Energy, Elsevier, vol. 120(C), pages 827-841.
    2. Liao, Yujun & Dimopoulos Eggenschwiler, Panayotis & Rentsch, Daniel & Curto, Francesco & Boulouchos, Konstantinos, 2017. "Characterization of the urea-water spray impingement in diesel selective catalytic reduction systems," Applied Energy, Elsevier, vol. 205(C), pages 964-975.
    3. Jiang, Jibing & Li, Dinggen, 2016. "Theoretical analysis and experimental confirmation of exhaust temperature control for diesel vehicle NOx emissions reduction," Applied Energy, Elsevier, vol. 174(C), pages 232-244.
    4. Khristamto Aditya Wardana, Muhammad & Lim, Ocktaeck, 2022. "Investigation of ammonia homogenization and NOx reduction quantity by remodeling urea injector shapes in heavy-duty diesel engines," Applied Energy, Elsevier, vol. 323(C).
    5. Rogóż, Rafał & Kapusta, Łukasz Jan & Bachanek, Jakub & Vankan, Joseph & Teodorczyk, Andrzej, 2020. "Improved urea-water solution spray model for simulations of selective catalytic reduction systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 120(C).
    6. Wei, Li & Yan, Fuwu & Hu, Jie & Xi, Guangwei & Liu, Bo & Zeng, Jiawei, 2017. "Nox conversion efficiency optimization based on NSGA-II and state-feedback nonlinear model predictive control of selective catalytic reduction system in diesel engine," Applied Energy, Elsevier, vol. 206(C), pages 959-971.

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