2. Need for oil tank cooling
Current model of oil tank doesn’t have effective cooling
system incorporated
Oil composition breaks down after certain range of
temperature
Cooling of oil help to reduce the wear and tear of engine
parts due to friction
Objectives
Optimise the heat transfer between the engine oil and
surrounding air
Design should be compact and of less weight
Find the areas where heat transfer can occur
3. Background
• Using of dry sump over wet sump system
• Cooling is necessity for ECU race car
• Heat transfer method and different heat exchanger.
The two types of heat transfer which takes place in heat exchangers used in car is conduction and convection.
Convection occurs mainly where fluids are used and the preliminary results are based on the convection
equation.
𝑄𝑐𝑜𝑛𝑑 = 𝑈 ∗ 𝐴 ∗ 𝛥𝑡 ∗ 10−3
𝐾𝑊
𝑄𝑐𝑜𝑛𝑣𝑐 = ℎ ∗ 𝐴 ∗ 𝛥𝑡 ∗ 10−3 (𝐾𝑊)
4. Solution of the problem: Fins
Its increases the surface area for convective cooling
Using the fan increases the heat transfer rate as it increases
the average coefficient of heat transfer
Fin parameters can be altered maximise heat transfer or
cooling rate of oil
17. Component name Minimum
Temperature (ºC)
Weight of the oil tank using
Aluminum as material (g)
Square plate fins 104 1148.55
Annular plate fins 90 996.64
Hexagonal plate fins 95 1055.60
Observations
18. Conclusion
• Different design posses different heat sink rate depending upon the fins parameters
• From the calculated results hexagonal fins poses greater heat sink compared to annular fins but the
overall weight of oil tank increase in hexagonal arrangement as showed in observations.
• Annular fins arrangement works effective in reducing the tempeartuer of the oil going through the
tank.