Yevhenii Shuba

RESEARCH, TEACHING, or OTHER INTERESTS

Engineering, Energy Engineering and Power Technology, Fuel Technology, Automotive Engineering

Scopus Publications

Enhancing the Fuel Efficiency and Environmental Performance of Spark-Ignition Engines through Advancements in the Combined Power Regulation Method
Jonas Matijošius, Sergiy Rychok, Yurii Gutarevych, Yevhenii Shuba, Oleksander Syrota, Alfredas Rimkus, and Dmitrij Trifonov
MDPI AG
A major issue with spark-ignition engines is their fuel inefficiency and negative environmental effects, especially in urban driving situations. This topic is of utmost importance considering the increasing apprehension over environmental contamination and the need for enhanced energy efficiency. The research’s originality resides in its strategy to tackling this issue without necessitating intricate engine changes, a manner not commonly used. The research uses a dual strategy that integrates both theoretical and experimental approaches. The theoretical component entails developing models to forecast the effects of different cylinder deactivation strategies on fuel consumption and emissions. Important factors to address in this theoretical model are the introduction of air into cylinders that are not in use and the stopping of fuel supply. The experimental component involves conducting bench experiments on a modified spark-ignition engine to verify the theoretical conclusions. These tests assess performance metrics, such as fuel economy and environmental effect, under different load situations. The study’s findings are encouraging. The study reveals that disabling a specific group of cylinders while permitting unrestricted air intake might result in significant improvements in fuel economy, anywhere from 1.5% to 10.5%, depending on the engine’s workload. Bench testing revealed a maximum improvement of 10.8%, which demonstrates the efficacy of this strategy. The study’s findings indicate that the use of the integrated power regulation approach greatly improves fuel efficiency and decreases the impact of the environmental consequences of spark-ignition engines, especially in situations of low load and idling. This technology demonstrates its feasibility as a solution that can be seamlessly incorporated into current engine designs with few adjustments, providing a practical and environmentally responsible option for enhancing vehicle performance. The results indicate that this approach has wide-ranging potential uses in the automotive sector, particularly for urban cars that often function in situations with modest levels of demand. By using this approach, manufacturers may attain enhanced fuel efficiency and diminish emissions, this contributing to the development of more sustainable urban transportation options.


Effect of the addition of hydrogen-containing (H<inf>2</inf>/O<inf>2</inf>) gas on indicated and effective parameters of a gasoline engine
Jonas Matijošius, Yurii Gutarevych, Yevheniy Shuba, Alfredas Rimkus, and Oleksander Syrota
Elsevier BV



Improving the Energy Efficiency of a Vehicle by Implementing an Integrated System for Utilizing the Thermal Energy of the Exhaust Gases of an Internal Combustion Engine
Yurii Gutarevych, Jonas Matijošius, Dmitrij Trifonov, Oleksandr Syrota, Alfredas Rimkus, Yevhenii Shuba, and Urtė Radvilaitė
Springer International Publishing



Testing the Indicators of Diesel Vehicles Operating on Diesel Oil and Diesel Biofuel
Jonas Matijošius, Olga Orynycz, Sergii Kovbasenko, Vitalii Simonenko, Yevheniy Shuba, Valentyn Moroz, Serhiy Gutarevych, Andrzej Wasiak, and Karol Tucki
MDPI AG
The growth in the number of cars and the increasing demand for fuels require scientific work to develop alternative fuels. The energy crisis, which is becoming more and more evident, is not unimportant. The manuscript presents an analysis of the possibility of using agricultural biofuels to power a diesel engine. The analysis was carried out in relation to the operation of the engine on conventional fuels. The D-241 engine under investigation is mainly used for agricultural tractors. During the tests carried out, the load characteristics of the diesel engine under investigation were determined as a function of fuel type and speed. The concentrations of CO, HC and NOx were analysed. Laboratory tests of the engine were carried out with a wide range of external loads to evaluate measurement errors for the measurement method. Experiments with the engine under investigation have shown that the hourly and specific biofuel consumption of diesel engines increases by an average of 11–16%. CO and NOx concentrations were found to be lower with increasing load compared to conventional diesel engines, while NOx concentrations are slightly increased. In all cases investigated, a decrease in exhaust development was observed.


Using Mathematical Modeling to Evaluate the Performance of a Passenger Car When Operating on Various Fuels
Ivan Manko, Jonas Matijošius, Yevheniy Shuba, Alfredas Rimkus, Serhiy Gutarevych, and Viktor Slavin
MDPI AG
This article presents the results of experimental and computational studies of the performance of a car with a gasoline engine with spark ignition when retrofitted with a system of liquefied petroleum gas (LPG). To analyze the impact of the use of LPG instead of gasoline, the mathematical model of the car’s movement according to the modes of the European driving cycle has been refined. It was established that when using LPG for a car in the driving cycle, fuel consumption in energy units decreases by 10.38%. Gas consumption, determined in mass units, is lower than gasoline consumption. In load modes, this difference is about 8% and in idle mode, it reaches 16–18%. The adequacy of the mathematical model is confirmed by experimental studies of the car on modern equipment with the measurement of fuel efficiency and environmental performance in motion, according to the specified cycle. The deviation of the calculated fuel consumption from the results of experimental studies does not exceed 0.86%. The values of environmental indicators obtained by calculations on the mathematical model differ from the experimental ones by an average of 15%. The conducted studies showed the expediency of using LPG by retrofitting a car with a gasoline engine with an LPG power supply system and the possibility of using mathematical modeling to assess the feasibility of such retrofitting.


Influence of the Addition of Alcohol Compounds to Gasoline on the Performance of a Modern Spark Ignition Engine
Gintaras Valeika, Yuriy Gutarevych, Yevheniy Shuba, Jonas Matijošius, Oleksandr Dobrovolskyi, and Dmytro Ovchynnikov
Springer International Publishing



EFFECT OF THE ADDITION OF HYDROGEN-CONTAINING GAS ON INDICATED AND EFFECTIVE PARAMETERS OF A GASOLINE ENGINE




The Performance of a Car with Various Engine Power Systems – Part II
Viktor Slavin, Yevheniy Shuba, Jacek Caban, Jonas Matijosius, Alfredas Rimkus, Anatolii Korpach, and Serhiy Gutarevych
Walter de Gruyter GmbH
Abstract Reducing exhaust emissions from motor vehicles has become a major task in the design of modern motor vehicles. Internal combustion engines, despite the increasingly frequent restrictions on, for example, entry to city centers, still constitute the majority of the used motor vehicles. For these reasons, it is very important to properly operate and control the used motor vehicles, especially in the field of exhaust emissions. One way is to replacement of the vehicle fleet and individual cars with newer generation vehicles. Unfortunately, due to economic differences in the world, the rolling stock replacement process is not the same in all countries. However, despite these differences, even in less developed countries, efforts are being made to reduce vehicle emissions. This work presents road, bench and computational comparative tests of the fuel, economic, environmental and energy characteristics of a series car with a standard carburetor supply system and equipped with an electronic gasoline injection system and a three-component catalyst under operating conditions.


The Performance of a Car with Various Engine Power Systems – Part I
Viktor Slavin, Yevheniy Shuba, Jacek Caban, Jonas Matijosius, Alfredas Rimkus, Anatolii Korpach, and Serhiy Gutarevych
Walter de Gruyter GmbH
Abstract The automotive sector has recently undergone enormous transformations, mainly dictated by the requirements to reduce the negative impact of the automotive industry on the natural environment. Reducing emissions from this sector has become the main driver of change in modern motor vehicles. Unfortunately, due to economic differences in the world, this process is not the same in all countries. Despite these differences, however, even in less developed countries, efforts are made to reduce vehicle exhaust emissions. The work conducted road tests, bench, calculated comparative studies of fuel, economic, environmental and energy performance of a serial car with a standard carburetor power system and equipped with an electronic gasoline injection system and a three-component catalytic converter under operating conditions.


ON THE PROSPECTS OF USING THERMOELECTRIC COOLERS TO MAINTAIN OPTIMAL AIR TEMPERATURE IN THE INTAKE MANIFOLD OF INTERNAL COMBUSTION ENGINE FOR IMPROVING ITS PERFORMANCE CHARACTERISTICS




Measurement of fuel consumption and harmful emissions of cars when using different types of fuel
I. Manko, Y. Shuba, A. Korpach, S. Gutarevyc, J. Ragulskiene, and A. Pauliukas
JVE International Ltd.
The article presents the results of studies of energy, environmental and fuel efficiency indicators of a passenger car with a gasoline injection system. The engine is equipped with a device additionally supplying liquefied petroleum gas (LPG) and it has an ignition timing variator (ITV). As a result of research, an improvement in the fuel efficiency of a car in thermal equivalent was found when the engine was running on LPG and a slight increase in energy performance was observed. Emissions of pollutants with exhaust gases change in different ways: emissions of carbon monoxide practically do not change, emissions of hydrocarbons and nitrogen oxides are growing, carbon dioxide emissions from LPG operation are reduced, socio-economic damage when the engine is running on LPG is also reduced.


Improving fuel economy of spark ignition engines applying the combined method of power regulation
Yurii Gutarevych, Vasyl Mateichyk, Jonas Matijošius, Alfredas Rimkus, Igor Gritsuk, Oleksander Syrota, and Yevheniy Shuba
MDPI AG
One of the disadvantages of spark ignition engines, whose power is regulated by throttling, is the increased fuel consumption at low loads and when the engine is idle. The combined method of engine power regulation by switching off the cylinder group and throttling working cylinders is one of the effective ways to improve fuel economy in the above-mentioned modes. This article presents the research results of the combined method of engine power regulation which can be realized by minor structural changes in operating conditions. The method implies the following: at low loads and at idle speed of the engine. Fuel supply to the group of cylinders is switched off with the simultaneous increase of the cyclic fuel supply in the working cylinders. The adequacy of the calculated results has been checked by the indication of operating processes in switched off and working cylinders. The research results of a six-cylinder spark ignition engine with the distributed gasoline injection using the combined power regulation system have been shown. The angles of opening the throttle which provides a non-shock transition from the operation with all cylinders to the operation with the cylinder group switched off have been determined.


Improvement of Fuel Economy and Starting Properties of the Diesel Engine by Heating the Air at the Inlet
Mykola Dmytrychenko, Yurii Gutarevych, Yevhenii Shuba, Oleksandr Syrota, Dmitrij Trifonov, and Jonas Matijošius
Springer International Publishing



Intensification of the combustion process in a gasoline engine by adding a hydrogen-containing gas
Yuriy Gutarevych, Yevheniy Shuba, Jonas Matijošius, Stanislav Karev, Edgar Sokolovskij, and Alfredas Rimkus
Elsevier BV



On the prospects of using thermoelectric generators with the cold start system of an internal combustion engine with a thermal battery