Cooling Capacity And Input Power; For Δt Different From The Rated Value; Fouling Factors - AERMEC WRL 200 Technical Manual

9.8. COOLING CAPACITY AND INPUT
POWER
The heating capacity yielded in conditions
other than rated conditions are obtained by
multiplying the rated values (Ph, Pa) by the
respective correction coefficients (Cd). Diagram
(Tab. 8.10.1) allows you to obtain the correc-
tion coefficients; corresponding to each curve,
the temperature of the hot processed water re-
ferred to is reported, assuming a difference in
water temperature between the input and
output of the condenser equal to 5°C/10°F.
KEY:
Ph: Heating capacity
Pa: Input power
Cd: Desuperheater heating capacity
correction coefficient
9.9. FOR ΔT DIFFERENT FROM THE
RATED VALUE
For Δt different from 5K to the evaporator,
refer to Tab. "∆t DIFFERENT FROM NOMI-
NAL (∆t 5)" for the cooling capacity and input
power correction factors.
∆t DIFFERENT FROM NOMINAL (∆t 5)
AT THE EVAPORATOR 3
Cooling capacity 0,99
Input power 0,99
Heating capacity 0,99
AL CONDENSER -
Cooling capacity -
Input power -
Heating capacity
the variations can be ignored
9.10.

FOULING FACTORS

The performance levels indicated in table:
"FOULING FACTOR [K*M ]/[W]" refer to con-
2
ditions with clean tubes, with a fouling factor =
1. For values different from the fouling factor,
multiply the values in the performance table by
the reported coefficients.
FOULING FACTOR [K*M
0,00001 0,00002 0,00005
Cooling capacity 1
Input power 1
Heating capacity 1
Input power 1
IWRLPY. 1403. 5890710_01
16
1,4
1,3
1,2
1,1
1,0
0,9
0,8
0,7
40
104 105
Condenser output
water temperature
5 8 10
1 1,02 1,03
1 1,01 1,02
1 1,02 1,03
5 10 15
1 1,01 1,02
1 0,99 0,98
]/[W]
2
0,99 0,98
1 1
1 0,99
1 1,02
HEATING CAPACITY - DESUPERHEATER
41 42 43 44
106 107 108 109 110 111 112
Temperature of water produced at Desuperheater Δt 5K
A
°C -6
°F 21,2
45 46 47 48
113 114 115 116 117 118 119
B C D
0 6,7 10
32 44,1 50
F
E
D
C
B
A
49 50 °C
120 121 122 °F
E F
13 18
55,4 64,4