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THE EFFECT OF DIFFERENT FUEL TYPES ON THE OPERATION OF
AUTOMOBILE ENGINE CYLINDERS
G‘. M. Bahodirov
Assistant, Andijan State Technical institute
J.B. Xodiyev
Student, Andijan State Technical institute
Sh.M.Tojimamatov
Student, Andijan State Technical institute
Abstract :
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
the impact analysis does.
Key words:
fuels, engine cylinders, gasoline, diesel, hydrogen, natural gas, biofuel, power,
efficiency.
Car in engines following fuel types wide spread:
Gasoline: High octane fuel , spark plug burning in engines is used.
Diesel: High compressive in engines by itself lights up, efficiency hig .
Natural gas (LPG/CNG): Liquefied propane-butane (LPG) or compressed natural gas (CNG),
low emission.
Biofue : Plant or animal from products working is produced ( bioethanol , biodiesel).
Hydroge: Fuel in their cells used only water waste 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 to work 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. Waste gases CO₂ ( 4 billion tons per year globally ), CO and 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
amount high to be possible.
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
of cylinders 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 ) and village on the farm wide spread. But fuel quality ( sulfur)
amount up to 500 ppm ) of cylinders work the deadline shortens.
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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 the design 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
and other plant products biodiesel working release for to 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
most ecological 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
cleanliness Hydrogen
high burning temperature cylinders for special alloys (e.g. nickel
reasonable ( requirement ) does this working release costs by 30% increases.
Fuel
type in the cylinder burning process physicochemical features Gasoline
and
hydrogen fast it burns, this high advantage in revolutions (5000-7000 rpm) Diesel
and
biodiesel slower It burns quickly, providing high torque at low revs (2000-3000 rpm). Diesel in
engines squeeze ratio high (15:1-22:1), with a temperature of 600-800°C in the cylinder harvest
Hydrogen
burning and 2000° C to reach it is possible, this special to the heat resistant
materials demand Low octane gasoline
number ( like A-80 in Uzbekistan) detonation
strengthens, this cylinder and pistons Hydrogen high flammability and controllable burning
demand does.
In Uzbekistan fuels impact and status .
Gasoline and diesel: in Uzbekistan 70% of cars gasoline, 20 % diesel to engines has. Fuel
quality ( sulfur) amount 200-500 ppm) of cylinders wear and tear strengthens, this and repair
expenses increases.
Natural gas: CNG vehicles number to 150 thousand in 2023 enough, but gas quality and cylinder
safety problems engine to work impact does.
Biofuel: Biodiesel working release initial in the stage, but cotton oil and other plant products
potential source is considered.
Hydrogen: Currently In Uzbekistan hydrogen engines from the test not held , but the sun energy
( 3000 hours per year ) sunny day) hydrogen working release for opportunity creates.
Fuel
the impact soften according to to the proposals the following let's say will be. Fuel
quality increase, Gasoline and diesel in fuel sulfur amount up to 50 ppm reduce , this cylinders
Increases durability by 20% increases. Ecological systems current, Diesel
engines with SCR
and DPF systems mandatory installation, waste reduction by 70 % reduces. Biofuel working
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release, Kashkadarya and In Surkhandarya biodiesel working release factories construction,
cotton from oil use. Hydrogen tests, in Tashkent hydrogen fuel to the cells based buses from
the test transfer .
Conclusion:
Various fuel types car engine cylinders efficiency, power, endurance and waste various impact
does. Gasoline and diesel fuels
In Uzbekistan wide widespread although, naturally gas ,
biofuel and hydrogen such as alternative fuels in the future ecological clean alternatives as
important importance profession Fuel
quality increase, ecological systems current to
grow and alternative fuels from the test transfer In Uzbekistan engines performance improve and
the environment protection to do service does.
References:
1. Heywood, JB (2018). Internal Combustion Engine Fundamentals . McGraw-Hill Education .
2. UzAutoMotors . (2023). Annual Report 2022-2023: In Uzbekistan car working release and
market analysis .
3. Bosch, R. (2022). Automotive Handbook . 10th Edition. Wiley .
4. Uzbekistan
Ecology and the environment protection to do state Committee . (2024). In
Uzbekistan air quality and ecological monitoring report .
5. Kalghatgi , G. (2018). Is it really the end of internal combustion engines and petroleum in
transport? Applied Energy , 225, 965-974.
6. Bartolozzi , I., & Rizzi , F. (2021). Hydrogen as an Alternative Fuel: Challenges and
Opportunities. Journal of Cleaner Production , 297, 126-134.
7. Stone, R. (2012). Introduction to Internal Combustion Engines . Palgrave Macmillan .
