Ultrasonic Unit for Reducing the Toxicity of Diesel Vehicle Exhaust Gases

Kadyrov, Adil; SARSEMBEKOV, Bauyrzhan; Ganyukov, Aleksandr; Suyunbaev, Shinpolat; Sinelnikov, Kirill

doi:10.26552/com.c.2022.3.b189-b198

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…It can be concluded that the optimal operating parameters of the full-size stand determined during the experiments correspond to the ultrasonic frequency of 40 kHz in all values of the crankshaft speed. These parameter values correspond to the condition of the criterion of optimal operation of the ultrasonic muffler and provide a minimum value for the ratio of the exhaust gas indicators [48][49][50][51][52]. The diagram in Figure 12 shows that with an increase in the value of f/ω, the ratio of the flue gas indicators decreases.…”

Section: Parameters Valuementioning

confidence: 99%

The Influence of the Frequency of Ultrasound on the Exhaust Gas Purification Process in a Diesel Car Muffler

Kadyrov,

Bembenek,

Sarsembekov

et al. 2024

Applied Sciences

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This research aimed to analyze the possibility of installing an ultrasonic emitter in an already manufactured car and to prove the possibility of cleaning the exhaust gases of an internal combustion engine through the action of an ultrasonic wave due to coagulation and examining the optimal regimes of its work. The existing theoretical solution to describe the proposed process was analyzed. A Mercedes-Benz M-Class ML 270 CDI MT car with the OM 612 DE 27 LA Diesel engine was used for the experiment. An ultrasound generator and an ultrasound emitter were connected to the muffler. The stand was connected to the car via the inlet with a rubber hose that directs the exhaust gases out of the car. The crankshaft speed of the engine was changed in the range of 750 to 1250 rpm, which corresponds to urban conditions when cars are moving in heavy traffic jams. The content of CH, CO, CO2, and O2 in the exhaust gas of the vehicle was determined as a function of the crankshaft speed without ultrasonic exposure and with ultrasonic exposure at an ultrasound frequency of 25, 28, and 40 kHz. The results of the experiment showed that the introduction of an ultrasonic emitter into the muffler reduced the smoke content of the gas, increased the oxygen content, and reduced the amount of carbon dioxide in the exhaust gases. With an increase in the ratio between the ultrasonic frequency and the angular velocity of the engine crankshaft (f/ω), the smoke content of the gas also decreased. At the maximum values of ultrasonic frequency and angular velocity of the engine crankshaft selected in the experimental studies, the minimum value of the ratio of gas smoke indicators was achieved, and the degree of purification was 10–13%. Such results correspond to the condition of optimal operation of the ultrasonic muffler, where the ratio of gas to smoke values should tend to a minimum. These results confirm the potential of using ultrasound as a method for cleaning exhaust gases and underline the need for further research in this area.

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Section: Parameters Valuementioning

confidence: 99%

The Influence of the Frequency of Ultrasound on the Exhaust Gas Purification Process in a Diesel Car Muffler

Kadyrov,

Bembenek,

Sarsembekov

et al. 2024

Applied Sciences

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“…In practice, the following methods of exhaust gas purification are used: dry, wet, electric, catalytic and ultrasonic methods [6]. Until now, no electric gas purification method has been used in car mufflers [7]. There are a number of patents that propose the creation of a special chamber for electric air purification placed between the engine collector and the muffler [8,9].…”

Section: Introductionmentioning

confidence: 99%

Establishing the parameters of the operation mode of the electric pulse automobile muffler

Kukesheva,

Kadyrov,

Kryuchkov

2024

J Appl Eng Science

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The purpose of the research in the article is to obtain analytical and experimental results on the purification of internal combustion engine exhaust gases by an electric pulse, allowing us to determine the main parameters of the muffler operation. The set goal was achieved by performing the following methodology. A mathematical model of the motion of a gas particle in a muffler has been developed and investigated, the relationship between the capacity of the engine combustion chamber, the number of revolutions of the crankshaft, the pulse intensity, and the dynamic viscosity of the medium has been established. The condition of the muffler operation is determined through the parameter – the distance between the electrodes. The optimality criterion is justified – the smokiness of the gas before and after purification. A nonlinear experimental plan has been compiled using the methods of similarity theory and dimension analysis. An experimental stand has been developed and results linking the process parameters have been obtained. The results obtained are the basis for the methodology for calculating the design of electric pulse mufflers with optimal smoke ratios.

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Investigating the Characteristics of Injecting and Spraying Methanol-Containing Fuel in a Diesel Engine

Likhanov,

Lopatin

2024

Engineering technologies and systems

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Introduction. The operation of eco friendly and high-efficiency internal combustion engines is not possible without deep and comprehensive study of using new types of fuels. That is why, forecasting the indicators of injecting and spraying in a diesel engine running on a mixed alcohol-containing fuel, which have a direct effect on the combustion and formation of toxic components and, as a result, on efficiency and eco friendliness, is an urgent scientific task.Aim of the Study. The study is aimed at developing a theoretical basis for calculating the characteristics of injecting and spraying methanol-containing fuel into diesel engine cylinders that allows optimizing its processes.Materials and Methods. There are considered the characteristics of injecting and spraying alcohol-containing fuel in a diesel engine modified to operate on a mixed methanol-containing fuel. There were used the well-known A.S. Lyshevsky dependencies, which fairly reliably reflect the processes of injecting and spraying in diesel engines.Results. The in-depth studies of the basic principles for evaluating the indicators of injecting and spraying standard fuel made it possible to adapt them for fuels of mixed methanol-containing composition and to investigate the dynamics of changes in the duration and speed of injection, the Weber criterion values, the boundaries between the areas of fuel jet forming, droplet size and spraying angle.Discussion and Conclusion. There has been developed a theoretical basis for calculating the characteristics of injecting and spraying methanol-containing fuel that makes it possible to optimize the operation of a diesel engine running on mixed fuel and, as a result, improve its efficiency and eco friendliness. The presented numerically information on the change in the boundaries of the fuel jet forming areas, the size of the droplets and the angle of the spraying cone allows us to reliably determine the basic parameters of spraying of the used mixed methanol-containing fuels, determine the vector of optimization of the mixing processes and gives insight into the promising directions in designing the geometry of combustion chambers, intake ducts, etc.

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Ultrasonic Unit for Reducing the Toxicity of Diesel Vehicle Exhaust Gases

Cited by 4 publications

References 10 publications

The Influence of the Frequency of Ultrasound on the Exhaust Gas Purification Process in a Diesel Car Muffler

The Influence of the Frequency of Ultrasound on the Exhaust Gas Purification Process in a Diesel Car Muffler

Establishing the parameters of the operation mode of the electric pulse automobile muffler

Investigating the Characteristics of Injecting and Spraying Methanol-Containing Fuel in a Diesel Engine

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