Specifications

67
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
T
otal capacity, TC
⇒
x
1
= 4.885kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 35°C Outdoor WB)*
Sensible capacity, SC
Ex
trapolation Method:
⇒
⇒ y
1
= 3.687kW
(b) Indoor Condition: 2
4°C DB, 15°C WB
Outdoor Condition: 40°C DB
Total capacity, TC
⇒
x
2
= 4.485kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 40°C Outdoor WB)*
Sensible capacity, SC
Ex
trapolation Method:
⇒
⇒ y
2
= 3.271kW
* 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
=
3.
243kW - y
1
17°C - 16°C 3.243kW - 3.465kW
17°C - 15°C
=
2.845kW - y
2
17°C - 16°C 2.845kW - 3.058kW
Outdoor DB ° C
Indoor DB Indoor WB 3
5
° C ° C TC (kW) SC (kW)
15 x
1
y
1
24 16 4.999 3.465
17 5.
113 3.243
Outdoor DB ° C
Indoor DB Indoor WB 4
0
° C ° C TC (kW) SC (kW)
15 x
2
y
2
24 16 4.621 3.058
17 4.758 2.845
C
M
Y
CM
MY
CY
CMY
K
P68.pdf 5/15/2007 5:59:31 PMP68.pdf 5/15/2007 5:59:31 PM