Evaporative Air Cooling
Air Conditioning
1. Introduces 100% fresh air.
1. Re-circulates the same stale air
2. Windows and doors left open.
2. Windows and doors must be shut.
3. Keeps the air moist, great for allergy and asthmatic conditions.
3. Reduces the moisture, which can be bad for asthma and allergy sufferers.
4. Full ventilation exhaust odors, germs.
4. Re-circulated air can contain germs and airborne contaminants.
5. Increased cooling capacity as outside temperature rises.
5. Reduced efficiency and capacity as outside temperature rises.v
6. 70% Less than the installation costs of air conditioning.
6. Costly installation.
7. 90% Less than the running costs of air conditioning.
7. Higher running costs.
Ambient Dry Bulb Temperature (OC)
Percentage Relative Humidity
10
20
30
40
50
60
70
80
90
10
4.0
4.5
5.5
6.0
7
7.5
8
9
9.5
15
7.5
8.5
9.5
10.5
11
12
13
13.5
14.3
20
11
12
13
14.5
15.5
16.5
17.5
18.5
19.0
25
14.5
16
17
18.5
20
21
22
23
24
30
17.5
19.5
21
22.5
24
25
26.5
28
29
35
20
23
25
26.5
28.5
30
31.5
32.5
34
40
23
26.5
29
31
32.5
34.5
N/A
N/A
N/A
45
26
29
32.5
35
N/A
N/A
N/A
N/A
N/A
50
29
32.5
36.5
N/A
N/A
N/A
N/A
N/A
N/A
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Centifugal Blower (backward)
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Centifugal Blower (forward)
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Axial Flow Fan
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Roof Extractor
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Bifurcated Fan
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Tunnel Ventilatio
n
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Man Cooler
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Spray Painting Booth
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Air Washer Padtype/ Spraytype
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Cellulose Pad
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Fume Hood
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Spot Humidifire
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Filter
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Fume Extraction System
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Green House/Poultry Shed
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Ventilation System
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Odor Control System
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