Engine Cooling System Presentation

1. COOLING SYSTEM
A U T O M O T I V E E N G I N E

2. UNDERSTANDING
COMPONENTS, AIR COOLING,
WATER COOLING, AND
CIRCULATION
A cooling system in an automobile is
responsible for regulating the engine's
temperature to prevent overheating and
ensure optimal performance. It works by
circulating coolant (a mixture of water and
antifreeze) through the engine, absorbing
heat, and transferring it to the radiator,
where it is dissipated into the air.

3. COMPONENTS OF COOLING SYSTEM
• RADIATOR- Transfer heat from
the coolant to the air.
• COOLANT- A liquid that absorbs
engine heat and transfer it to the
radiator.

4. COMPONENTS OF COOLING SYSTEM
• WATER PUMP- Ensures coolant
circulation throughout the
system.
• THERMOSTAT- Opens and closes to
regulate coolant flow based on
engine temperature.

5. COMPONENTS OF COOLING SYSTEM
• COOLING FAN- Helps remove
heat from the radiator.
• HOSES AND PIPES- Transport
coolant between components.

6. COMPONENTS OF COOLING SYSTEM

7. Two main types of Cooling
Systems
• A I R C O O L I N G S Y S T E M
• W AT E R C O O L I N G S Y S T E M

8. AIR COOLING SYSTEM
Air cooling systems typically function by drawing
cooler air from the environment and directing it
over hot components. Heatsinks, which are usually
made of metal with high thermal conductivity like
aluminum or copper, are attached to heat-
generating components.
Air cooled Cars (1940'S - 80'S)
VW BEETLE
TRABANT 601
PORSCHE 917 and 911(993
GT2)

9. KEY COMPONENTS
OF AIR COOLING SYSTEM
• Cooling fins to increase the
surface area for heat
dissipation.
• A fan to improve airflow and
cooling
• The engine block, designed
for maximum heat
dispersion
ADVANTAGES disADVANTAGES
• Simpler design with fewer
parts.
• Lighter weight and lower
maintenance.
• No risk of coolant leaks.
• Less efficient in hot
environments.
• Less effective for high-
performance engines.

10. WATER COOLING SYSTEM
A cooling method that uses liquid coolant to absorb
and transfer heat away from the engine. The heated
coolant flows through a radiator, where it is cooled by
airflow before circulating back to the engine. This
system is used in most modern vehicles due to its
higher efficiency in temperature regulation.

11. KEY COMPONENTS
OF water COOLING
SYSTEM
• Radiator – Dissipates heat from the coolant.
• Water Pump – Ensures proper circulation of
coolant.
• Thermostat – Regulates coolant
temperature.
• Hoses – Transport coolant through the
system.
• Cooling Fan – Assists in airflow through the
radiator.
ADVANTAGES disADVANTAGES
• More efficient cooling.
• Suitable for high-performance
and large engines.
• Requires regular maintenance
(coolant changes, leak checks).
• More complex and heavier than
air-cooled systems.

12. Circulation Process
in water cooling system
01. 03.
02. 04.
The coolant
absorbs heat
from the engine
block.
Airflow and
the cooling
fan help cool
down the
coolant.
The heated
coolant moves
to the radiator
via hoses.
The thermostat
regulates when
coolant should
flow based on
temperature.
05.
The water pump
ensures
continuous
circulation back
to the engine.

13. tHANK YOU!!!