EVAPORATIVE COOLERS

1
WELCOME FROM
Ireland
2
The History of Evaporative Cooling

• Evaporative cooling is the oldest form of air
  conditioning ever used
• The ancient Greeks used to fill terracotta pots
  full of water and leave them by doors and windows
  to benefit from evaporative cooling
• The Arabs hung wet blankets over doors and
  windows to achieve the same effect

3
The physics of evaporative cooling

• Evaporative cooling is a natural phenomenon that
• occurs when moving air passes over a wetted
  medium
• or water source, i.e. fountain, river, sea,
  shower, etc.
• The human body uses evaporative cooling through
• sweating to maintain a constant body temperature.

4
The physics of evaporative cooling

• Warm dry air when passing over water liberates
  some of
• the water in the form of an evaporate. This
  adiabatic
• process converts sensible heat (that which can be
• measured by a thermometer) into latent heat.

5
The physics of evaporative cooling

• The net result is air which has measurably lower
• temperatures than ambient air (approximately 6-7
  oC for
• typical Irish summer temperatures) but has
  increased
• levels of relative humidity

6
The mechanics of evaporative cooling
7
The mechanics of evaporative cooling
Water reservoir
8
The mechanics of evaporative cooling
Water inlet
Water reservoir
9
The mechanics of evaporative cooling
Water inlet
Recirculation pump
Water reservoir
10
The mechanics of evaporative cooling
Water distributor
Water inlet
Recirculation pump
Water reservoir
11
The mechanics of evaporative cooling
Water distributor
Water spreader
Water inlet
Recirculation pump
Water reservoir
12
The mechanics of evaporative cooling
Water distributor
Water spreader
Pads
Water inlet
Recirculation pump
Water reservoir
13
The mechanics of evaporative cooling
Water distributor
Water spreader
Fan
Pads
External air
Water inlet
Recirculation pump
Water drain
Water reservoir
14
The mechanics of evaporative cooling
Water distributor
Water spreader
Fan
Pads
Cooled air
External air
Water inlet
Recirculation pump
Water drain
Water reservoir
15
Adiabatic Saturation
Sensible
Sensible
Latent
Latent
16
(No Transcript)
17
External Roof Mounted
External Ducted
Internal - Suspended
Internal - Mobile
18
External Roof Mounted
Celtic LInen
19
External Ducted
Waterford Crystal
20
(No Transcript)
21
Internal - Suspended
22
(No Transcript)
23
Light weight easily supported
All services from above
Low services requirement
All plastic and Stainless steel Construction
Easily Relocated
Multi directional air flow
Modular installation
24
(No Transcript)
25
(No Transcript)
26
Mobile Cooling
27
(No Transcript)