Performance Data; Calculation Steps - Daikin F Series Technical Manual

Performance Data

Performance Data

Calculation Steps

Interpolation method can be used to get the total cooling capacity, TC and sensible cooling capacity, SC
and power input, PI at those temperatures which are not stated out in the table. Extrapolation method is not
allowed to be used.
Example:
AFR
EWB EDB
(CFM)
TC
21°C 2.02 1.54 0.49 1.95 1.50 0.53 1.87 1.46 0.58 1.80 1.42 0.63 1.65 1.32 0.68 1.52 1.24 0.75
24°C 2.02 1.84 0.49 1.95 1.80 0.53 1.88 1.76 0.58 1.80 1.71 0.63 1.66 1.60 0.68 1.53 1.51 0.75
16°C
27°C 2.04 2.04 0.49 1.97 1.97 0.54 1.90 1.90 0.58 1.83 1.83 0.63 1.69 1.69 0.68 1.57 1.57 0.75
30°C 2.10 2.10 0.50 2.04 2.04 0.54 1.98 1.98 0.58 1.91 1.91 0.63 1.77 1.77 0.69 1.66 1.66 0.76
24°C 2.23 1.44 0.50 2.15 1.40 0.54 2.07 1.36 0.59 1.99 1.32 0.64 1.83 1.23 0.69 1.69 1.16 0.76
27°C 2.23 1.64 0.50 2.15 1.61 0.54 2.07 1.57 0.59 1.99 1.53 0.64 1.83 1.43 0.69 1.69 1.36 0.76
195 19°C
30°C 2.23 2.03 0.50 2.15 1.99 0.54 2.08 1.94 0.59 2.00 1.89 0.64 1.84 1.77 0.69 1.71 1.68 0.76
33°C 2.26 2.26 0.50 2.18 2.18 0.54 2.11 2.11 0.59 2.04 2.04 0.64 1.89 1.89 0.70 1.77 1.77 0.77
27°C 2.45 1.41 0.51 2.36 1.37 0.55 2.28 1.34 0.60 2.19 1.30 0.65 2.01 1.21 0.71 1.86 1.14 0.78
30°C 2.45 1.71 0.51 2.36 1.68 0.55 2.28 1.64 0.60 2.19 1.60 0.65 2.01 1.50 0.71 1.86 1.42 0.78
22°C
33°C 2.45 2.00 0.51 2.37 1.96 0.55 2.28 1.92 0.60 2.19 1.88 0.65 2.02 1.77 0.71 1.87 1.68 0.78
36°C 2.46 2.27 0.51 2.38 2.22 0.55 2.29 2.18 0.60 2.21 2.13 0.65 2.04 2.00 0.71 1.90 1.89 0.78
Solution:
Based on the Performance Table,
1. Refer to the Indoor DB column,
- 25°C is located between 24°C & 27°C for 16°C WB.
- 25°C is located between 24°C & 27°C for 19°C WB.
- Thus, Interpolation needs to be applied.
2. Refer to the Indoor WB column,
- 17°C is located between 16°C & 19°C for 25°C DB.
- Thus, Interpolation needs to be applied.
3. Refer to the Outdoor DB column,
- 37°C is located between 35°C & 40°C.
- Thus, Interpolation needs to be applied.
1 Step
st
Interpolation of Indoor WB
Find TC, SC & PI
(a) Indoor: 25°C DB, 16°C WB
Outdoor: 35°C DB
(b) Indoor: 25°C DB, 19°C WB
Outdoor: 35°C DB
(c) Indoor: 25°C DB, 16°C WB
Outdoor: 40°C DB
(d) Indoor: 25°C DB, 19°C WB
Outdoor: 40°C DB
24
19°C 25°C
SC PI TC SC PI
2 Step
nd
Interpolation of Indoor DB
Find TC, SC & PI
(a) Indoor: 25°C DB, 17°C WB
Outdoor: 35°C DB
(b) Indoor: 25°C DB, 17°C WB
Outdoor: 40°C DB
Outdoor temperature
30°C 35°C
TC SC PI TC SC
40°C
PI TC SC PI TC
3 Step
rd
Interpolation of Outdoor DB
Find TC, SC & PI
(a) Indoor: 25°C DB, 17°C WB
Outdoor: 37°C DB
46°C
SC PI