terms Flashcards
1
Q
An
A
net area for vapour-liquid contact
2
Q
Aa
A
Active area or bubbling area
3
Q
Ah
A
Area of all holes on the plate
4
Q
Ap
A
The perforated area which includes blanked area
5
Q
Uf
A
Flooding velocity
6
Q
Flv
A
liquid-vapour factor
7
Q
Uv
A
vapour velocity
8
Q
Dc
A
column diameter
9
Q
Ht
A
Total plate pressure drop
Ht = Hd+Hw+How+Hr
10
Q
Hd
A
dry plate pressure drop, mm of liquid
11
Q
Ac
A
Total column cross sectional area
12
Q
Ad
A
Downcomer cross sectional area
13
Q
Hw
A
weir height
14
Q
How
A
weir liquid crest, mm
15
Q
Hr
A
residual head, mm of liquid
