C-THERM TCi, Operator'S Manual, Page: 129 / 138

TCi Operator Manual
123
Time: 1 s =0.01667 min
=0.0002778 hr
Effusivity: 1 W

s
1/2
/m
2
/K =2.388x10
-5
cal

s
1/2
/cm
2
/K
=8.946x10
-4
Btu/hr
1/2
/ft
2
/

F
Length: 1 m = 100 cm
= 3.2808 ft
Calculation of Thermal Diffusivity:
s
m
J m
m s J
kgK J m kg
mK W
Cp
k
2
3 3
/ /
/ /
/









The user must enter the density and Cp for this calculation.
Calculation of Heat Capacity:
   
 
 
kgK
J
m kg K
s m s s J
m kg mK s J
K m s s J
m kg mK W
K m s W
C
k
e
C
C k e
C k e
p
p
p
p













4
4
3
2 4 2 2
3
2
2 2 / 1
2
2
/
/ / /
/ / /
/ / /
/ /
/ /



User must enter the density for this calculation
Calculation of R-value (RSI):
W
m K
mK W
m
R
k
l
R
2
/

 

The user must enter the thickness of material for this calculation
Depth of Penetration:
 
m s
s
m
d
t d









2 / 1
2
2 / 1
4

Where: t is the test time.