25 °C
30 °C
35 °C
40 °C
45 °C
50 °C
Water temperature at condenser outlet (Δt=5°C)
8.10. HEATING CAPACITY WITH DESU-
PERHEATER
The heating capacity yielded in
conditions other than rated condi-
tions are obtained by multiplying
the rated values (Pt, Pa) by the
respective correction coefficients
(Cd).
Diagram (Tab. 8.10.1) allows you
to obtain the correction coef-
ficients; corresponding to each
curve, the temperature of the
hot processed water referred to is
reported, assuming a difference in
water temperature between the
input and output of the condenser
equal to 5°C.
KEY:
Cd =
Heating capacity correction
coefficient
8.11. FOR
∆T DIFFERENT FROM THE
RATED VALUE
For ∆t different from 5°C to the
evaporator, refer to Tab.8.11.1 for
the cooling capacity and input
power correction factors.
8.12. FOULING FACTORS
The performance levels indicated
in table 8.12.1 refer to conditions
with clean tubes, with a fouling
factor = 1. For values different from
the fouling factor, multiply the val-
ues in the performance table by
the reported coefficients.
8.13. DESUPERHEATER PRESSU-
RE DROPS
The pressure drops in the charts refer
to an average water temperature of
10 °C. The table(8.13.1) shows the cor-
rections to apply to the pressure drops
with a variation in average water
temperature.
Portata d'acqua l/h
0
10
20
0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000
0500-0550-0600-0650-0700
0750-0800-0900-1000-1250-1400
Perdite di carico (kPa)
Average water temperature [°C] 5 10 15 20 30 40 50
Correction factor
1,22 1,10 1,08 1,06 1,04 1,02 1,00
Tab 8.13.1
fig. 8.10.1
8.11.1 CORRECTION FACTORS FOR ∆T DIFFERENT
FROM THE CHILLER RATED VALUE
8.12.1 FOULING FACTOR
Evaporator Δt different to nominal 35810
Correction factor cooling capacity 0,99 1 1,02 1,03
Correction factor input power 0,99 1 1,01 1,02
Correction factor heating capacity 0,99 1 1,02 1,03
Condenser Δt different to nominal - 5 10 15
Correction factor cooling capacity
- 1 1,01 1,02
Correction factor input power - 1 0,99 0,98
Correction factor heating capacity capacity changes are neglectable
Fouling factor [K*m
2
]/[W] 0,00001 0,00002 0,00005
Correction factor cooling capacity 1 0,99 0,98
Correction factor input power 1 1 1
Correction factor heating capacity 1 1 0,99
Correction factor input power 1 1 1,02
Temperature of water produced at
desuperheater(Δt=5°C)
22
INXWPY. 1004. 4438805_00
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