TCAEY-THAEY 115÷238 - Rhoss

TCAEY-THAEY 115÷233
TCAEY-THAEY pressure drops and residual static
pressure
1000
100
10
Graph “1”: pr essur e drops, TCAEY-THAEY 115÷238
condenser/evaporator
130
133,233,238
122
124
127
1
1000 10000
G (l/h)
Δpw ( kPa) = nominal press ure drop at t he exchanger in question (table
on Tec hnic al data):
G (l/h) = water fl ow rate at the exc hanger in questi on;
Graph “2”: r esidu al st atic pr essur e TC AEY-THAEY 115÷238
P1-P2 instal lation
200
190
180
170
160
150
140
130
120
110
100
90
80
130 P1
127 P1
70
60
124 P1
50
40
115-117 P1
122 P1
2500 3000 3500 4000 4500 5000 5500 6000
G (l/h)
performances
Calculation of pr essur e drops
The wat er flow rate at t he exchanger is c alculat ed accordi ng to t he
followi ng formula:
○ G = (Q x 860) : ΔT
• Wher e:
G (l/h) = water fl ow rate at the exc hanger;
Q (kW) = exchanged power, which may be QF (for the evaporat or) or
QT (for the condens er), depending on t he exchanger in question;
ΔT (°C) = temperature diff erential;
○ The pr essure drops can be obtai ned from t he RHOSS selection
soft ware and can be read on the graph to the side, or c an be calculated
using the following rough for mula:
Δpw = Δpw nom x (G : G nom )²
N.B.:
For all machines, ref er in any c ase to admissible operating limits and
thermal dif ferences (ΔT).
Graph “2”: r esidu al st atic pr essur e TC AEY-THAEY 115÷238
ASP1-ASP2 installation
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
130 ASP1
50
115-117 ASP1 122 ASP1 124 ASP1 127 ASP1
40
2500 3000 3500 4000 4500 5000 5500 6000
G (l/h)
250
250
200
133,233,238 P2
200
133,233,238 ASP2
150
150
100
133,233,238 P1
100
133,233,238 ASP1
50
1000 2000 3000 4000 5000 6000 7000 8000 9000
G (l/h)
Δpr = Residual st atic pressure
G = Water flow rate
50
1000 2000 3000 4000 5000 6000 7000 8000 9000
G (l/h)
Δpr = Residual st atic pressure
G = Water flow rate
Calculation of r esidu al st atic pr essur e
The residual st atic pressure values can be obt ained from graph “2” based on measured flow rates.
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