analysis of transient heat conduction in different geometries - ethesis ...

Dimensionless temperature (θ)
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
B=2
B=1
B=3
B=4
B=5
B=10
1 2 3
48
G=1
Dimensionless time (τ)
B=1
B=2
B=3
B=4
B=5
B=10
Fig 4.7 Average dimensionless temperature versus dimensionless time in a tube with constant
heat generation for different Biot number
Dimensionless temperature (θ)
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
G=1
G=2
G=3
G=4
G=5
G=10
1 2 3
Dimensionless time (τ)
B=1
G=1
G=2
G=3
G=4
G=5
G=10
Fig 4.8 Average dimensionless temperature versus dimensionless time in a cylinder with
constant Biot number for different heat generation