Civil Engineering Reference
In-Depth Information
1.2.11 Wärmeleitfähigkeit
BTU in/(h·ft
2
·°F)
W/mK
cal/(s·m·°C)
cal/(s·cm·°C)
BTU/(h·ft·°F)
W/mK
1
0,23885
0,00239
0,57779
6,93347
cal/(s·m·°C)
4,1868
1
0,01
2,419087
29,02905
2,90291
x
10
3
cal/(s·cm·°C)
418,67980
100
1
241,9087
BTU/(h·ft·°F)
1,73074
0,41338
0,00413
1
12
BTU in/(h·ft
2
·°F)
3,44483
x
10
-4
0,14423
0,03445
0,08333
1
1.2.12 Spezi¿ sche Wärmekapazität
J/(kg·K)
J/(g·K)
cal/(g·K)
Btu/(lb·°F)
10
-3
2,38846
x
10
-4
2,39006
x
10
-4
J/(kg·K)
1
10
3
J/(g·K)
1
0,23885
0,23901
4,1868
x
10
3
cal/(g·K)
4,1868
1
1,00067
4,184
x
10
3
Btu/(lb·°F)
4,184
0,99933
1
1.2.13 Wärmedurchgangskoef¿ zient
W/(m
2
·K)
cal/(s·cm
2
·°C)
kcal/(h·m
2
·°C)
Btu/(h·ft
2
·°F)
W/(m
2
·K)
2,38846
x
10
-5
1
0,85985
0,17611
cal/(s·cm
2
·°C)
4,1868
x
10
4
3,6
x
10
4
7,37338
x
10
3
1
kcal/(h·m
2
·°C)
2.77778
x
10
-5
1,163
1
0,20482
Btu/(h·ft
2
·°F)
1,35623
x
10
-4
5,67826
4,88243
1
1.2.14 Wärmestromdichte
W/m
2
cal/(s·cm
2
)
kcal/(h·m
2
)
Btu/(h·ft
2
)
W/m
2
2,38846
x
10
-5
1
0,85985
0,317
cal/(s·cm
2
)
4,1868
x
10
4
3,6
x
10
4
1,32721
x
10
4
1
kcal/(h·m
2
)
2,77778
x
10
-5
1,163
1
0,36867
Btu/(h·ft
2
)
7,53461
x
10
-5
3,15459
2,71246
1
