Environmental Engineering Reference
In-Depth Information
TABLE 1.4
HVAC Unit Costs (Window Units)
Cooling Capacity, kW
Power Consumption, W
Air Flow a
Unit Cost, LE
2.64
1023
540
1400
3.66
1429
630
1700
5.28
2000
1020
2000
7.03
2697
1275
2400
a Airflow is in m 3 /h.
TABLE 1.5
HVAC Unit Estimated Energy Costs (Window Units)
Power Consumption,
kWh/day at 40°C Outdoor
HVAC Cost,
LE/day
Cooling Capacity, kW
Air Flow
2.64
10.23
540
2.046
3.66
14.29
630
2.858
5.28
20.00
1020
4.0
7.03
26.97
1275
4.394
Note: Calculated at 10 h/day and 0.2 LE/kWh.
TABLE 1.6
HVAC Unit Characteristics (Split Units)
Cooling Capacity, kW
Power Consumption, W
EER
COP
2.78
1056
9.0
2.64
3.66
1389
9.0
2.64
5.57
2111
9.0
2.64
7.03
2775
8.65
2.64
8.8
3409
8.8
2.58
10.26
3784
9.25
2.71
Note: EER = energy efficiency ratio; COP = coefficient of performance.
TABLE 1.7
HVAC Unit Costs (Split Units)
Cooling Capacity, kW
Power Consumption, W
Air Flow a
Unit Cost, LE
2.64
1056
509
3400
3.66
1389
509
3700
5.28
2111
798
4000
7.03
2775
956
4400
8.8
3409
1528
5500
10.26
3784
1528
6000
a Airflow is in m 3 /h.
 
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