Big Performance, 
Big Results

How Do Big Fans Work?
The Big Fan is capable of sending large volumes of air downwards with its wide blade width and unique blade profile, all while operating at a low speed of up to 50 rpm. When the slow-moving air column hits the floor, it changes course and creates a ‘floor jet’ that moves outward in a 360° direction. It continues to move along on ground level until it meets the walls, changing direction once again and then moving vertically upwards. This tremendous movement of air covers most of the workspace and ensures that all personnel and equipment are cooled down.

A single Big Fan can create a cooling effect that has a large coverage of 1400m². It can also reduce humidity, moisture, condensation and hazardous gases in the workspace - creating a safer and more comfortable working environment for workers.
How airflow created by a Big Fan unit travels through a typical enclosed structure.

Big Fan Zone Performance

Feel Up To 5° C Cooler
Research done by the American Society for Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) shows that air movement can reduce the perceived temperature felt by a person. This effect allows the worker to feel cooler without having the air temperature being reduced - much like the experience of feeling a gust of wind or a sea breeze on a hot day. The table here shows the perceived temperature drop felt by a person at various distances away from the fan based on the algorithm published by ASHRAE in ASHRAE Standard 55-2013.
7.3m Fan Zone Performance
A B C 14 m 28 m 40 m
Zone
Avg.Velocity
∆TPTD
A
3.0 - 3.5 m/s
4 - 5 °C
B
2.0 - 2.5 m/s
3 - 4 °C
C
0.5 - 1.0 m/s
2 - 3 °C
3.1m Fan Zone Performance
A B C 7 m 12 m 18 m
Zone
AVG.Velocity
∆TPTD
A
2.0 - 2.5 m/s
3 - 4 °C
B
1.0 - 1.5 m/s
3 - 3.5 °C
C
0.5 - 1.0 m/s
2 - 3 °C
∆T PTD is Perceived Temperature Drop
Ball Jet Diffuser
Evaporative Cooler
EVAP + Big Fan Controller

Big Fan + EVAP Performance

Feel Up To 12° C Cooler

Evaporative Cooler Air Supply Temperature in °C

The Big Fan can also be complemented with Evaporative Cooling technology. By supplying the Big Fan with cool air produced by evaporative cooler units, the perceived temperature drop effect felt under this system can be improved by up to 12° Celsius. 
Outside Air RH(%)
Outside Air Dry-Bulb Temperature (°C)
30
31
32
33
34
35
35
21
21
22
23
24
25
40
22
22
23
24
25
26
45
22
23
24
25
26
27
50
23
24
25
26
27
27
55
24
25
26
27
27
28
60
25
26
26
27
28
29
65
25
26
27
28
29
30
70
26
27
28
29
30
-
75
27
28
29
30
-
-

Contact Us

Feel free to drop us any questions you have, or schedule a visit to see the Big Fan in person!
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