1. DEVELOPMENT OF AN
ALGORITHM OF INTERFACIAL
HEAT TRANSFER COEEFICIENT
GROUP NO:- 03
SWAPNIL PATIL 201042
ANUSHA PUTTI 201044
MAYUR RATHOD 201046
SNEHA MORE 201071
PROJECT GUIDE: Mr. C. M. CHOUDHARI
2. AIM AND OBJECTIVE:-
Develop an algorithm for Interfacial Heat Transfer
Coefficient (IFHTC).
Objective:-
1. To find the heat transfer coefficient for the air gap
formed.
2. To find the optimum pouring temperature for good
quality casting
3. To develop an algorithm for the same
4. SCOPE
The project deals with only sand casting and
considering Aluminum as the cast material.
The shape of the component considered is a simple
plate.
Except for the air gap formation other defects are not
taken into consideration.
Analysis performed is only in 2D.
5. CASTING SPECIFICATIONS
Mould dimensions: 300 x 300 x 180 mm
Cavity dimensions: 200x200x40 mm
Material used: Aluminum
Type of casting: Sand casting
8. INVERSE HEAT CONDUCTION
h = q /∆T
q =K dt/dx
h = Interfacial heat transfer coefficient
q = Heat flux
K = Thermal conductivity
dt = Difference between pouring temperature
and mould temperature.
dx = 0.5 m
9. RESULTS OF HEAT TRANSFER
COEFFICIENT ACCORDING TO
POURING TEMPERATURE
Pouring temperature
(K)
Thermal conductivity
(W/m K)
Heat transfer coefficient
(W/m²K)
933 90.7 17447.633
973 92.1 17505.532
1073 95.5 18156.760
1173 98.6 18547.460
10. GRAPH OF POURING TEMPERATURE
VS
HEAT TRANSFER COEFFICIENT
17200
17400
17600
17800
18000
18200
18400
18600
18800
850 900 950 1000 1050 1100 1150 1200
Heattransfercoefficient(W/m²K)
Pouring temperature (K)
heat transfer coefficient
13. ALGORITHM INPUTS
• Surface area of casting = 2(200*200+200*40+200*40)
• Volume of casting = 200*200*40
• Density of aluminium = 2700 Kg/m3
• Specific heat capacity = 0.91 KJ/kgK
17. FUTURE SCOPE
• It can be extended to castings of different materials
and of different shapes.
• The analysis can also be done to find the other
optimum parameters for casting process such as
pouring temperature.
• The analysis can also be done for 3-D.