2017 Pagina 1 van 3
Formuleblad Stoomtechniek EPT
3
0
273,15 1,01325
273,15
werkelijk
werkelijk
werkelijk
tm
vp kg
ν
+
=⋅⋅
( )
[/]
ns w vs w
h h x h h kJ kg= +⋅ −
( )
( ) ( )
( ) ( )
3
[ /]
1
ns vs
ns vs w
ns w vs w
x m kg benaderd
x x exact
x exact
υυ
υυ υ
υ υ υυ
= ⋅
=⋅ +− ⋅
= +⋅ −
21
21
p
hh h kJ
ct t t kg C
−∆
= = =
− ∆ ⋅°
Gemiddeld
Q
sT
∆
=
2
1
1T
T
η
= −
( ) ( )
/
ns w vs w
s s x s s kJ kg K
= +⋅ − ⋅
( )
s vs w
Qm h h=⋅−
volumepercentage stoom
100
stoom totaal
pp= ⋅
⋅
12
13
12
dd
Q
t -t = +
Aλλ
α λα
−=⋅ ++
14
11
iu
Qd
tt A
2
1[ / ( )]
11
iu
k W mK
d
α λα
= ⋅
++
T [ ]
gem
Q k A Watt= ⋅ ⋅∆
∆
∆
∆−∆
=∆
min
max
minmax
gem
T
T
ln
TT
T
