EDM SYSCROLL 20 35 AIR S 1GB05.13

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SyScroll 20-35 Air
12
Performances corrective factors (brine)
Table 1
Unit capacity, absorbed power, brine ow rate, brine pressure drop, have to be corrected according following formula:
CORRECTED UNIT CAPACITY
Q
CORRECTED/GLYCOL
= Q
NOMINAL
x K
c
x K
c
E,P
Where K
c
: Capacity corrective factor according to LWT (ΔT = 5 [K]) → refer to Table 1
K
c
E
: Capacity corrective factor according to glycol percentage (ETHYLENE GLYCOL) → refer to Table 2
K
c
P
: Capacity corrective factor according to glycol percentage (PROPYLENE GLYCOL) → refer to Table 4
CORRECTED UNIT ABSORBED POWER
P
CORRECTED/GLYCOL
= P
NOMINAL
x K
i
x K
i
E,P
Where K
i
: Absorbed power corrective factor according to LWT (ΔT = 5 [K]) → refer to Table 1
K
i
E
: Absorbed power corrective factor according to glycol percentage (ETHYLENE GLYCOL) → refer to Table 2
K
i
P
: Absorbed power corrective factor according to glycol percentage (PROPYLENE GLYCOL) → refer to Table 4
CORRECTED BRINE FLOW RATE
G
CORRECTED/GLYCOL
= G
RE-CALCULATED
x K
f
E,P
Where G
RE-CALCULATED
: Flow rate according to P
CORRECTED/GLYCOL
(P
CORRECTED/GLYCOL
x 860 / ΔT / 3600)
K
f
E
: Flow rate corrective factor according to glycol percentage (ETHYLENE GLYCOL) → refer to Table 2
K
f
P
: Flow rate corrective factor according to glycol percentage (PROPYLENE GLYCOL) → refer to Table 4
CORRECTED BRINE PRESSURE DROP
ΔP
CORRECTED/GLYCOL
= Δ
PRE-CALCULATED
x K
p
E,P
Where ΔP
RE-CALCULATED
: Pressure drop according to to G
CORRECTED/GLYCOL
(K
BPHE
x (G
CORRECTED/GLYCOL
)
2
)
K
p
E
: Pressure drop corrective factor according to glycol percentage (ETHYLENE GLYCOL) → refer to Table 2
K
p
P
: Pressure drop corrective factor according to glycol percentage (PROPYLENE GLYCOL) → refer to Table 5
K
c
K
i
Leaving water
temperature
[LWT] (°C)
(ΔT=5 [K])
7 1,000 1,000
4 0,887 0,940
2 0,816 0,900
0 0,748 0,865
-2 0,685 0,826
-4 0,624 0,788
-6 0,568 0,753
-8 0,513 0,718
-10
0,461 0,683