Airedale EcoChill 6kW - 46kW - Manual (Page 33)

33
EcoChill Chiller
Technical Manual 7300221 V1.1.0_02/2013
12. DESUPERHEATER
The heating capacity obtained by
the desuperheater is attained by
multiplying the nominal value (Pd),
given in table 14.1.2. by a relevant
coefficient (Cd).
The diagrams allow to obtain
the corrective coefficients to use
depending on the temperature of the
external air and the temperature of the
water produced at the desuperheater.
NOTE
The use of the desuperheater
is possible in cooling function;
for heat function it must be
intercepted.
12.1. PRESSURE DROPS
All sized models with desuperheater
have 1 desuperheater.
The features of the desuperheater and
the pressure drop curves are given
below.
For Water Temperature °C values,
different from 50°C, multiply the result
obtained by corrective factor.
35 40 45 50 55 60 65
20°C
25°C
45 °C
40 °C
35 °C
30 °C
0
0.5
1
1.5
2
2.5
3
external air temperature d.b.
Temperature of desuperheater produced water ∆t 5° C
Water flow rate l/h
050
070
080 ч 090
100 ч 200
0
0
10
20
30
40
50
60
70
80
90
500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500
Cd
Average water temperature °C 30 40 50 60 70
Multiplicative coefficients 1.04 1.02 1 0.98 0.96
TAB.14.1.2 050 070 080 090 100 150 200
Heating capacity available kW 5.4 6.6 8.2 8.9 13.8 17.1 18.9
Water flow rate l/h 930 1140 1410 1530 2370 2940 3260
Pressure drop kPa 8 10 11 13 14 24 30
Nominal value refers to:
air temperature 35 °C
water at desuperheater 45/50 °C
∆t 5°C