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

4.2 HEAT GENERATION FOR BOTH SLAB AND TUBE
Fig (4.5) depicts the variation of temperature with time for various heat generation parameters
for a slab. This fig contains Biot number as constant. With higher value of heat generation
parameter, the variation of temperature inside the tube with time is less as compared to lower
values of heat generation parameters. Fig (4.6) shows the variation of temperature with time for
various Biot numbers, having constant heat generation parameter for a slab. With lower value of
Biot numbers, the temperature inside the tube does not vary with time. As the Biot number
increases, the temperature varies more with increase of time.
Dimensionless temperature (θ)
12
10
8
6
4
2
0
G=5
G=4
G=3
G=2
G=1
1 2 3
46
G=10
Dimensionless time (τ)
B=1
G=1
G=2
G=3
G=4
G=5
G=10
Fig4.5 Average dimensionless temperature versus dimensionless time in a slab with constant
Biot number for different heat generation