McQuay MLCV Spezifikationen Seite 79

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Seitenansicht 78
124
Details:
1
st
Step:
To obtain the Total capacity and Sensible capacity for
(a) Indoor Condition: 24°C DB, 15°C WB
Outdoor Condition: 35°C DB
Total capacity, TC
x
1
= 2.526kW (Same as Total capacity at 20 °C Indoor DB / 15 °C Indoor WB & 35 °C Outdoor WB)*
Sensible capacity, SC
Extrapolation Method:
y
1
= 1.989kW
(b) Indoor Condition: 24°C DB, 15°C WB
Outdoor Condition: 40°C DB
Total capacity, TC
x
2
= 2.335kW (Same as Total capacity at 20 °C Indoor DB / 15 °C Indoor WB & 40 °C Outdoor WB)*
Sensible capacity, SC
Extrapolation Method:
y
2
= 1.789kW
* This is due to 2 different conditions with same WB temperature, will have the same level of enthalpy. For
more details, please refer to psychrometrics chart
17°C - 15°C
=
1.819kW - y
1
17°C - 16°C 1.819kW - 1.904kW
17°C - 15°C
=
1.613kW - y
2
17°C - 16°C 1.613kW - 1.701kW
Outdoor DB ° C
Indoor DB Indoor WB 35
° C ° C TC (kW) SC (kW)
15 x
1
y
1
24 16 2.598 1.904
17 2.670 1.819
Outdoor DB ° C
Indoor DB Indoor WB 40
° C ° C TC (kW) SC (kW)
15 x
2
y
2
24 16 2.410 1.701
17 2.480 1.613
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