THE EFFECT OF DIFFERENT FUEL TYPES ON THE OPERATION OF AUTOMOBILE ENGINE CYLINDERS

Аннотация

Car engines cylinders is the " heart " of the car , their performance and used fuel​ type directly Depends. Fuel type of the engine efficiency, power, waste gases and to the endurance impact does. In Uzbekistan car industry, in particular UzAutoMotors, gasoline and diesel to fuels based although naturally gas, biofuel and hydrogen such as alternative fuels increasingly attention is gaining. This article various fuel​ types car engine cylinders to work theimpact analysis does. Key words: fuels, engine cylinders, gasoline, diesel, hydrogen, natural gas, biofuel, power, efficiency.​ Carin engines following fuel​ types widespread: Gasoline: High octane fuel ,spark plugburning inengines is used. Diesel: High compressive in engines byitselflights up,efficiency hig . Natural gas (LPG/CNG): Liquefied propane-butane (LPG) or compressed natural gas (CNG), lowemission. Biofue :Plant​ oranimal from products working isproduced ( bioethanol ,biodiesel). Hydroge: Fuel​ in theircells used only​ waterwaste harvest does . Every one fuel​ type engine cylinders to work to oneself typical impact shows , this below in detail seeing is released. Fuel​ engine cylinders towork impact. Gasoline. Gasoline engines sparkly to burn is based on. Fuel -air mixture in the cylinder squeezed, spark using lights up. Efficiency gasoline engines to 20-30% efficiency has, because burning in the process heat disappearance​ high. High good at revs (5000-7000 rpm) power gives , easy in cars preferably. Cylinders high temperature because of piston and shaft systems faster It wears out.Wastegases CO₂ (4billiontons peryear globally ), COand releases hydrocarbons (CH). In Uzbekistan UzAutoMotors by working issued 70% of cars gasoline to engines has . In Tashkent gasoline quality (A-92, A-95) engine to the efficiency impact does , because sulfur amounthigh to bepossible. Diesel. Diesel fuel​ in the cylinder high compression (from 15:1 to 22 : 1 ) by itself burns without sparks. Efficiency 35-40 %, to gasoline relatively fuel economical​ Power i Provides high torque at low revs (2000-3000 rpm), trucks and buses ideal for. Durability High squeeze because ofcylinders stronger from materials ( steel, cast iron ) iron ) is made, but soot accumulation wear and tear The emissions include NOx (60 million tonnes globally), soot (17 million tonnes ) and CO₂ . SCR and DPF systems reduce waste by 70-80% reduces. Diesel motor vehicles​ Uzbekistan​ logistics (65% share ) andvillage onthefarm wide spread. But fuel quality ( sulfur) amountupto 500ppm )of cylinders work thedeadline shortens. https://ijmri.de/index.php/jmsi volume 4,issue7,2025 108 Natural gas (LPG/CNG). Natural gas gasoline to the engines similar​ sparkly burning through works, but lower squeeze ratio (10:1) required does. Efficiency 25-30 %, gasoline close, but fuel​ price cheaper. Power​ For gasoline 10-15% lower than power, because energy density less. Endurance​ Cylinders low wear, because gas clean burns and soot harvest does not. Emissions are 30% lower in NOx and 20% lower in CO₂, but methane (CH₄) emissions are higher. climate to change impact does. In Uzbekistan natural to gas based vehicles ( 10% share ) Tashkent and Fergana such as in cities Gas is expanding. cylinders safety cylinders to thedesign additional​ requirements puts. Biofuel ( Bioethanol, Biodiesel ). Bioethanol gasoline in engines (E10, E85 blends ), biodiesel and diesel in engines is used . Efficiency Bioethanol to gasoline 5-10% lower efficiency compared to yes, biodiesel and diesel with almost one different. Power​ Bioethanol high octane to divide, to power increases, but energy low density. Biodiesel diesel with in comparison one kind power gives. Durability Bioethanol cylinders corrosion strengthen possible , biodiesel and good beard giving , wear and tear reduces . Waste i Biofuels reduce CO₂ emissions by 20-30%. reduces, but NOx emissions in biodiesel increase possible. In Uzbekistan biofuel working release still undeveloped , but cotton andotherplant products biodiesel working release forto potential has. Hydrogen. Hydrogen fuel​ chemical in fuel cells reaction through electricity energy harvest does or internal burning in engines lights up. Efficiency Fuel​ cells at 50-60% efficiency has, internal in combustion and 30-35%. Power i Hydrogen engines stable power gives, but high in rotations to gasoline relatively lower. Durability Hydrogen clean fires, cylinders wear and tear reduces, but fuel​ cells for special materials demand Waste is​ ​ Only water (H₂O) is formed does, the mostecological clean fuel. Hydrogen infrastructure In Uzbekistan no. Fuel type cylinder walls, pistons and shaft systems to the endurance impact Bioethanol​ ​ and high sulfurous gasoline/diesel cylinder on the walls chemical corrosion strengthens, this of the engine work extend the term by 10-15% shortens.bDiesel fuel in the cylinder soot (PM) yield does this​ wear by 20% increases. Natural gas and hydrogen soot harvest does not, cylinders cleanlines