HBA
Wärmeübergangskoeffizienten α0 bei p0* = 0,1, Ra0 = 1 · 10-6 m und Normierungswerte der Wärmestromdichte q0
|
Fluid |
Formel |
|
ASHRAE |
Krit. Druck |
α0 |
|
|
|
|
|
Pc |
W/(m²K) |
|
|
bar |
α0,exp |
|||
|
Methan |
CH4 |
|
|
45.99 |
7200 |
|
Ethen |
H2C=CH2 |
|
|
50.42 |
4200 |
|
Ethan |
CH3CH3 |
|
|
48.72 |
4600 |
|
Propen |
H2C=CHCH3 |
|
|
45.55 |
4200 |
|
Propan |
CH3CH2CH3 |
|
|
42.51 |
4300 |
|
n-Butan |
C4H10 |
|
|
37.96 |
3600 |
|
i-Butan |
C4H10 |
|
|
36.29 |
3700 |
|
n-Pentan |
C5H12 |
|
|
33.70 |
3300 |
|
i-Pentan |
C5H12 |
|
|
33.78 |
3200 |
|
n-Hexan |
C6H14 |
|
|
30.34 |
3200 |
|
Cyclohexan |
C6H12 |
|
|
40.75 |
3000 |
|
n-Heptan |
C7H16 |
|
|
27.36 |
2900 |
|
Benzol |
C6H6 |
|
|
48.94 |
2900 |
|
Toluol |
C7H8 |
|
|
41.26 |
2800 |
|
Diphenyl |
C12H10 |
|
|
38.47 |
2100 |
|
Methanol |
CH3OH |
|
|
82.16 |
5150 |
|
Ethanol |
CH3CH2OH |
|
|
61.31 |
4350 |
|
n-Propanol |
CH3CH2CH2OH |
|
|
50.50 |
3750 |
|
2-Propanol |
CH3CHOHCH3 |
|
|
47.60 |
3950 |
|
n-Butanol |
CH3CH2CH2CH2OH |
|
|
44.10 |
2600 |
|
i-Butanol |
CH3CH3CHCH2OH |
|
|
42.95 |
4500 |
|
2-Butanol |
CH3CHOHCH2CH3 |
|
|
41.94 |
3400 |
|
Acetaldehyd |
CH3CHO |
|
|
55.50 |
3500 |
|
Aceton |
CH3COCH3 |
|
|
47.0 |
3300 |
|
Kohlendioxid |
CO2 |
|
|
73.77 |
5500 |
|
Trifluormethan |
CHF3 |
|
R23 |
48.32 |
4800 |
|
Difluormethan |
CH2F2 |
|
R32 |
57.82 |
5000 |
|
Pentafluorethan |
CHF2CF3 |
|
R125 |
36.18 |
4400 |
|
Fluid |
Formel |
|
ASHRAE |
Krit. Druck |
α0 |
|
|
|
|
|
Pc |
W/(m²K) |
|
|
bar |
α0,exp |
|||
|
1,1,1,2-Tetrafluorethan |
CH2FCF3 |
|
R134a |
40.59 |
4200 |
|
1,1,1-Trifluorethan |
CH3CF3 |
|
R143a |
37.61 |
4700 |
|
1,1-Difluorethan |
CH3CHF2 |
|
R152a |
45.17 |
4600 |
|
2,3,3,3-Tetrafluorprop-1-en |
H2C-CFCF3 |
|
R1234: |
32.18 |
3000 |
|
Heptafluorpropan |
CHF2CF2CF3 |
|
R227 |
29.25 |
4100 |
|
R125/R143a, azeotrop |
(s. R125 & R143a) |
|
R507 |
37.05 |
4200 |
|
Cyclooctafluorbutan |
C4F8 |
|
RC318 |
27.78 |
4.2G |
|
Tetrafluormethan |
CF4 |
|
R14 |
37.50 |
4.75 |
|
1,1-Dichlor-2,2,2-trifluorethan |
CHCl2CF3 |
|
R123 |
36.62 |
3.00 |
|
Fluortrichlormethan |
CFCI3 |
|
R11 |
44.08 |
2.80 |
|
Difluordichlormethan |
CF2Cl2 |
|
R12 |
41.36 |
4.00 |
|
Trifluorchlormethan |
CF3CI |
|
R13 |
38.79 |
3.9C |
|
Trifluorbrommethan |
CF3Br |
|
R13131 |
39.70 |
3.50 |
|
Difluorchlormethan |
CHF2CI |
|
R22 |
49.90 |
3.90 |
|
Trifluortrichlorethan |
CF2CICFCl2 |
|
R113 |
33.92 |
2.65 |
|
Tetrafluordichlorethan |
CF2CICF2CI |
|
R114 |
32.57 |
3.80 |
|
Pentafluorchlorethan |
CF2CICF3 |
|
R115 |
31.29 |
4.20 |
|
R22/R115, azeotrop |
(s. R22 & R115) |
|
R502 |
40.17 |
3.30 |
|
Chlormethan |
CH3CI |
|
|
66.79 |
4.40 |
|
Tetrachlormethan |
CCI4 |
|
|
45.60 |
3.20 |
|
Schwefelhexafluorid |
SF6 |
|
|
37.55 |
3.70 |
|
Wasser |
H20 |
|
|
220.64 |
5.60 |
|
Ammoniak |
NH3 |
|
|
113.33 |
7.00 |
|
Sauerstoff |
O2 |
|
|
50.43 |
9.5 |
|
Stickstoff |
N2 |
|
|
33.96 |
10.0 |
|
Argon |
Ar |
|
|
48.63 |
8.2 |
|
Neon |
Ne |
|
|
26.79 |
20.0 |
|
Wasserstoff |
H2 |
|
|
12.96 |
24.0 |
|
Fluid |
Formel |
|
ASHRAE |
Krit. Druck |
α0 |
|
|
|
|
|
Pc |
W/(m²K) |
|
|
bar |
α0,exp |
|||
|
Helium |
He |
|
|
2,27 |
2,00 |
© Springer Verlag Berlin Heidelberg 2013
s. Wärmeübergangskoeffizient
s. Wärmeübergangskoeffizient
s. Unterkühlte Flüssigkeiten in einem beheizten Kanal
s. Unterkühlte Flüssigkeiten in einem beheizten Kanal
s. Unterkühlte Flüssigkeiten in einem beheizten Kanal
CF Faktor für untersuchte Stoffe im senkrechten Rohr
|
Stoff |
H2 (Para) |
He |
NH3 |
H2O |
N2 |
R22 |
R134a |
R12 |
R116 |
SF6 |
R113 |
|
CF |
0,35 |
0,86 |
1,24 |
0,72 |
0,8 |
1,2 |
1,67b |
1,21 |
2,49b |
2,07b |
2,2 |
|
Stoff |
Methanol |
Ethanol |
n-Butanol |
Benzol |
Cyclohexan |
n-Pentan |
n-Heptan |
R11 |
|
CF |
0,918 |
1,013 |
1,151 |
1,168 |
1,191 |
1,143 |
1,249 |
1,36 |
b Lokale Messwerte für voll benetztes Verdampferrohr
© Springer Verlag Berlin Heidelberg 2013
s. Wärmeübergangskoeffizient
s. Wärmeübergangskoeffizient