Communications - Scientific letters of the University of Zilina X:X | DOI: 10.26552/com.C.2026.009

Theoretical and Experimental Study of Diesel Engine Exhaust Gas Purification in a Vertical Ultrasonic Muffler Stand

Adil Kadyrov ORCID..., Aliya Kukesheva ORCID..., Yermek Dyussenbaev ORCID..., Zhanara Zhunusbekova ORCID...*, Pavel Bezkorovainy ORCID...
Abylkas Saginov Karaganda Technical University NPJSC, Karaganda, Kazakhstan

In this article is presented a new method of ultrasonic cleaning of exhaust gases of diesel engines by coagulation of soot particles and their subsequent sedimentation. The analytical modelling of the particle motion in a vertical muffler stand was carried out, taking into account the ultrasonic effect and gravitational forces. Experimental studies of the developed stand confirmed that ultrasound promotes agglomeration and sedimentation of soot, reduces the CO₂ content and increases the O₂ concentration in the exhaust gases. The maximum cleaning efficiency is achieved with the simultaneous use of all the ultrasonic emitters. The results of the work can be used in designing modern exhaust gas cleaning systems.

Keywords: ultrasonic cleaning, diesel engine exhaust, soot particle coagulation, vertical muffler, transport equipment, agglomeration and sedimentation, environmental impact reduction
Grants and funding:

The authors received no financial support for the research, authorship and/or publication of this article.

Conflicts of interest:

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Received: August 8, 2025; Accepted: November 23, 2025; Prepublished online: January 8, 2026 

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